Heating and Air Conditioning - Repair - e90 BMW M3 E90

64 00 000 Information on using cleaning agent/paints (personal protection equipment)

First Aid

1. If product comes in contact with eyes, immediately flush with running water for about 10 - 15 minutes. Seek the advice of eye specialist.
2. In the event of skin contact and where applicable an allergic skin reaction, clean the affected areas immediately with soap and water and then apply silicone-free skin cream. Seek advice of physician.
3. If an adhesive product is swallowed, rinse mouth/parts of mouth thoroughly with running water. Drink 1-2 glasses of water. Do not induce vomiting. Consult a doctor.
4. After inhaling vapors ensure ample supply of fresh air. Keep calm, keep respiratory tracks clear and call doctor.

Recycling

Dispose of cleaning agents/paints in a professional manner!

Observe national/country-specific disposal regulations.

00 Safety information for working on vehicles with automatic engine start-stop function (MSA)

Observe safety precautions when working on MSA vehicles

Before carrying out practical work on the engine, always ensure that the MSA functionality is deactivated so as to prevent automatic engine starting while work is being carried out in the engine compartment.

MSA function is deactivated by

Scheme 120

Scheme 121

1. Deactivate MSA by means of button (1) in passenger compartment
2. Open seat belt buckle and driver's door
3. Open engine bonnet/hood and ensure that engine hood/bonnet contact is not in workshop mode Workshop mode A = 10 mm Basic setting (engine hood/bonnet open) B = 7 mm

To make sure that the engine hood/bonnet contact is at the basic setting, if necessary press the hood/bonnet contact up to the limit position before starting work and slowly release.

When working with diagnosis tools

1. Observe instructions in diagnosis tool

Scheme 122

Scheme 123

64 11 856 Removing and installing/replacing servodrive for central kinematics (A/C control)

Necessary preliminary tasks

1. Remove «RIGHT GLOVEBOX WITH HOUSING»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e90__51-16-366-removing-and-installing)

Detach right footwell heating duct (1) in area (2) in direction of arrow.

Detach right footwell heating duct (1) with adapter (3) from heater/air conditioner and remove in direction of arrow from right rear compartment heating duct (4).

Scheme 124

Unfasten plug connection (1) and disconnect.

Release screws (2).

Detach servodrive for central kinematics (3) in direction of arrow from heater/air conditioner (4).

Installation

Place servodrive for central kinematics (3) over guide pin (5).

Scheme 125

64 11 206 Removing and installing/renewing heating unit

FOLLOW INSTRUCTIONS FOR WORKING ON COOLING SYSTEM .

Necessary preliminary tasks

1. Draw off «REFRIGERANT FROM A/C SYSTEM»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-50-009-drawing-off-evacuating)
2. Remove «INTAKE AIR MANIFOLD»(/bmw/m3/e90-2007-2013/remont/mechanical/#engine-repair-e90__11-61-050-removing-and-installing)
3. Remove «SECONDARY-AIR PUMP»(/bmw/m3/e90-2007-2013/remont/mechanical/#engine-repair-e90__11-72-000-removing-and-installingreplacing)
4. Remove «LOWER SECTION OF STEERING SPINDLE»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-repair-e90__32-31-070-removing-and-installingreplacing)
5. Remove «LEFT (OR RIGHT) SUSPENSION CROSSBRACE»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e90__51-71-345-removing-and-installingreplacing)
6. Remove «EXPANSION VALVE»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-51-525-removing-and-installing)
7. Remove «INSTRUMENT PANEL TRIM»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e90__51-45-030-removing-and-installing)
8. Remove «COMPLETE STEERING COLUMN»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-repair-e90__32-31-090-removing-and-installingreplacing)
9. Remove «AIR DUCTS»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-22-removing-air-ducts)
10. Remove «CARRIER FOR INSTRUMENT PANEL»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e90__51-45-removing-and-installing-carrier)

Release cap (1) on bulkhead and release screw underneath.

Tightening torque 64 11 1AZ .

Scheme 126

Unclip refrigerant lines (2).

Unscrew nuts (2).

Feed out media passage sealing plate (3) and associated rubber grommet.

Installation

Makes sure media passage sealing plate and associated rubber grommet are correctly seated.

Scheme 127

Remove heater (2) with a second person helping from vehicle.

Scheme 128

Installation

Make sure heater is correctly seated.

Make sure condensate drain (2) is correctly seated in grommet (1).

Scheme 129

After installation

1. «VENT COOLING SYSTEM AND CHECK FOR WATER LEAKS»(/bmw/m3/e90-2007-2013/remont/cooling-system-mechanical/#cooling-system-repair-e90__17-00-009-checking-cooling-system)
2. «EVACUATE AND FILL A/C SYSTEM»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-50-009-drawing-off-evacuating)

Replacement

Effective 09/2009, vehicles with SA 606 (Navigation Business) or SA 609 (Navigation Professional) will no longer have ventilation hose (1) on heater (2). In addition, vehicles manufactured up to 09/2009 will no longer require ventilation hose (1) for parts replacement.

Scheme 130

64 11 262 Removing and installing/replacing auxiliary water pump (S65)

Recycling

Coolant emerges when coolant lines are detached. Have a suitable collecting container ready.

Catch and dispose of emerging coolant.

Observe country-specific waste-disposal regulations.

Necessary preliminary tasks

1. Remove «SUCTION FILTER HOUSING»(/bmw/m3/e90-2007-2013/remont/fuel-system/#fuel-system-repair-e90__13-71-000-removing-and-installingreplacing)

Disconnect plug connection (1) and remove auxiliary water pump (2) towards top.

Scheme 131

Installation

Observe direction of flow.

Mark position of water hoses (1) prior to removal.

Scheme 132

Disconnect water hoses (1) and remove auxiliary water pump (2).

Installation

Install auxiliary water pump (1) in front engine bracket so that rubber mounts (2) slide exactly in associated locators (3).

Scheme 133

After installation

Fill and vent cooling system and check for leaks See 1700005 DRAINING AND ADDING COOLANT (S65) ; 1700039 VENTING COOLING SYSTEM AND CHECKING FOR WATER LEAKS (S65) or 1700009 CHECKING COOLING SYSTEM FOR LEAKS (S65)

64 11 908 Removing and installing/replacing footwell temperature sensor

Necessary preliminary tasks

1. Remove «TRIM PANEL FOR PEDAL ASSEMBLY»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e90__51-45-185-removing-and-installingreplacing) .

Note. For purposes of clarity, the following graphic shows the heater/air conditioner removed.

Remove air routing duct (1) and unscrew temperature sensor (2).

Scheme 134

64 11 212 Removing and installing/replacing heater/air conditioner fan

Necessary preliminary tasks

1. Remove «TRIM FOR INSTRUMENT PANEL»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e90__51-45-181-removing-and-installingreplacing) , bottom right
2. Partially release air duct at side

Disconnect plug connection (1).

Scheme 135

Carefully raise lug (1) and feed out housing (2) by turning clockwise.

Installation

Lug (1) must not be damaged and must snap audibly into place.

Scheme 136

Replacement

Replace CONTROLLER FOR HEATER/AIR CONDITIONER FAN

64 11 377 Removing and installing/replacing heater/air conditioner operator unit (version without CCC/ASK)

Note. Car Communication Computer (CCC) Audio System Kontroller/Controller (ASK)

Lever out heater/air conditioner operator unit (1) with special tool 00 9 340 and pull.

Scheme 137

Disconnect associated plug connections.

Remove heater/air conditioner operator unit (1) complete with center console switch cluster (2) and trim (3).

Replacement

Carefully unclip operator unit trim (1) at inner retaining points (2) only.

Scheme 138

Carefully unclip operator unit trim (1) at outer retaining points (2) only.

Remove trim (1) from operator unit (3).

Scheme 139

Replacement

Carry out Vehicle programming and encoding.

64 11 378 Removing and installing/replacing heating - A/C system control panel (version with CCC/ASK and CIC)

A hard disk is installed in the Car Information Computer (CIC).

Carry out mechanical work on the CIC and adjacent components with care.

Avoid subjecting the CIC to shaking/shocks.

Abbreviations

Central Information Computer (CIC)

Car Communication Computer (CCC)

Audio System Controller (ASK)

Necessary preliminary tasks

1. Remove «RIGHT DECORATIVE TRIM ON INSTRUMENT PANEL»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e90__51-45-380-removing-and-installing)

Note. Unclip the heater/air conditioner operator unit (2) by simultaneously

1. levering out using special tool using 00 9 340.
2. pulling on the relevant control button (3).

Fit special tool 00 9 340 on either side as illustrated.

Scheme 140

Unclip heater/air conditioner operator unit (2) complete with trim (1) at fastening points (4) and pull back.

Unlock associated plug connections and disconnect.

Remove heater/air conditioner operator unit (2) complete with trim (1).

Replacement

Carefully unclip operator unit trim (1) at inner retaining points (2) only.

Scheme 141

Carefully unclip operator unit trim (1) at outer retaining points (2) only.

Remove trim (1) from control panel (3).

Scheme 142

Replacement

Carry out Vehicle programming and encoding.

64 11 991 Removing and installing/replacing sensor for automatic recirculated air control

Unfasten plug connection (1) and disconnect.

Turn sensor for automatic recirculated air control (2) upwards and in direction of arrow and remove from mounting (3).

Installation

Make sure sensor for automatic recirculated air control (2) is correctly seated in mounting (3).

Scheme 143

64 11 871 Removing and installing/replacing servodrive for blending flap (left)

Necessary preliminary tasks

1. «REMOVE TRIM FOR INSTRUMENT PANEL AT BOTTOM LEFT»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e90__51-45-185-removing-and-installingreplacing)
2. E84/E90/E91/E92/E93: Remove «PANEL FOR PEDAL ASSEMBLY»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e90__51-45-185-removing-and-installingreplacing)

Note. Lower instrument panel trim partially shown transparent.

Detach left footwell heating duct (1) in area (2) in direction of arrow.

Detach left footwell heating duct (1) with adapter (3) from heater/air conditioner and remove in direction of arrow from left rear compartment heating duct (4).

Scheme 144

Installation

Make sure retainer (2) is correctly seated on left footwell heating duct (1).

Insert left footwell heating duct (1) with adapter (3) in left rear compartment heating duct (4).

Attach left footwell heating duct (1) in area (4) to heater/air conditioner. Make sure assembly is locked exactly at point (5).

Scheme 145

Unfasten plug connection (1) and disconnect.

Unfasten screws (2).

Detach servodrive for blending flap (3) in direction of arrow from heater/air conditioner (4).

Scheme 146

Installation

Place servodrive for blending flap (3) over guide pin (5).

Addressing can only be carried out with the BMW diagnosis system.

Service functions

1. Body
2. Heating and A/C function
3. Flap motors
4. Re-address flap motors

64 11 866 Removing and installing/replacing servodrive for blending flap (left)

Necessary preliminary tasks

1. Remove «TRIM PANEL FOR PEDAL ASSEMBLY»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e90__51-45-185-removing-and-installingreplacing) .

Note. For purposes of clarity, the following graphics show the heater/air conditioner removed.

Disconnect plug connection (1).

Release screws (2).

Remove servodrive at side.

Installation

Do not twist teeth of servodrive.

Scheme 147

64 11 872 Removing and installing/replacing servodrive for blending flap (right)

Necessary preliminary tasks

1. Remove «RIGHT GLOVEBOX WITH HOUSING»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e90__51-16-366-removing-and-installing)
2. E87 only: Remove center console

Detach right footwell heating duct (1) in area (2) in direction of arrow.

Detach right footwell heating duct (1) with adapter (3) from heater/air conditioner and remove in direction of arrow from right rear compartment heating duct (4).

Installation

Make sure retainer (2) is correctly seated on right footwell heating duct (1).

Insert right footwell heating duct (1) with adapter (3) in right rear compartment heating duct (4).

Attach right footwell heating duct (1) in area (4) to heater/air conditioner. Make sure assembly is locked exactly at point (5).

Unfasten plug connection (1) and disconnect.

Unfasten screws (2).

Detach servodrive for blending flap (3) in direction of arrow from heater/air conditioner (4).

Scheme 148

Installation

Place servodrive for blending flap (3) over guide pin (5).

Servomotors must be re-addressed in the event of replacement!

Addressing can only be carried out with the BMW diagnosis system.

Service functions

1. Body
2. Heating and A/C function
3. Flap motors
4. Re-address flap motors

64 11 868 Removing and installing/replacing servodrive for defrosting flap (right)

Necessary preliminary tasks

1. Remove «GLOVEBOX WITH HOUSING»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e90__51-16-366-removing-and-installing)

Note. For purposes of clarity, the following graphics show the heater/air conditioner removed.

Unfasten plug connection (1) and disconnect.

Release screws (2).

Remove servodrive at side.

Installation

Do not twist teeth of servodrive.

64 11 806 Removing and installing/replacing servodrive for fresh-/recirculated-air flap

Necessary preliminary tasks

1. Remove «RIGHT GLOVEBOX WITH HOUSING»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e90__51-16-366-removing-and-installing)

Unfasten plug connection (1) and disconnect.

Release screws (2).

Detach servodrive for fresh-/recirculated-air flap (3) in direction of arrow from heater/air conditioner.

Scheme 149

Installation

Place servodrive for fresh-/recirculatedair flap (3) exactly on associated gear teeth.

64 11 992 Removing and installing/replacing solar sensor

Lever out solar sensor (1) with special tool 00 9 340 REMOVAL AID in direction of arrow.

Note. Secure disconnected wiring harness of solar sensor (1) against falling out below instrument panel trim (2).

Scheme 150

Disconnect associated plug connection and remove solar sensor (1) from instrument panel trim (2).

64 11 905 Removing and installing/replacing ventilation temperature sensor

Necessary preliminary tasks

1. «REMOVE DECORATIVE STRIP ON INSTRUMENT PANEL ON RIGHT»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e90__51-45-380-removing-and-installing)

Pull temperature sensor (1) out of retaining lug (2).

Installation

Make sure rubber ring is correctly seated.

Scheme 151

Disconnect plug connection (1) and remove temperature sensor (2).

Scheme 152

64 11 829 Replacing actuator drive of ventilation flaps

Necessary preliminary tasks

1. Remove «RIGHT GLOVEBOX WITH HOUSING»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e90__51-16-366-removing-and-installing)

Unfasten plug connection (1) and disconnect.

Unfasten screws (2).

Detach servodrive for ventilation flaps (3) in direction of arrow from heater/air conditioner (4).

Installation

Place servodrive for ventilation flaps (3) over guide pin (5).

Scheme 153

Replacement

Servomotors must be re-addressed in the event of replacement!

Addressing can only be carried out with the BMW diagnosis system.

Service functions

1. Body
2. Heating and A/C function
3. Flap motors
4. Re-address flap motors

64 11 224 Replacing controller for heater/air conditioner fan

Necessary preliminary tasks

1. Remove «FAN»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-11-212-removing-and-installingreplacing) for heater/air conditioner

Disconnect plug connection (1).

Release screws (2) and remove controller.

Scheme 154

64 11 942 Replacing evaporator temperature sensor

Necessary preliminary tasks

1. Remove «LOWER INSTRUMENT PANEL TRIM»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e90__51-45-181-removing-and-installingreplacing)

Unfasten plug connection (1) and disconnect.

Withdraw temperature sensor (2).

Installation

Ensure temperature sensor (2) is correctly seated.

Scheme 155

64 11 970 Replacing fogging sensor

Expand two-part mirror base cover (1) by pressing from below and detach.

Feed out two-part mirror base cover (1) and remove.

Scheme 156

Disconnect plug connection (1).

Note. If necessary, carefully heat fogging sensor (2) with a hot air blower to approx. 40-60°C.

Scheme 157

Lift off fogging sensor (2) with special tool 00 9 317 and slowly pull off from windshield.

Installation

Bonding surface must be dry and free of dust and grease.

Clean bonding surface with adhesive remover (sourcing reference: BMW Parts Service).

After cleaning, do not touch bonding surface with bare hands.

Pull off protective film completely from fogging sensor (3).

Place mounting template (1) as pictured on rain sensor (2).

Press fogging sensor (3) in direction of arrow with a contact pressure of > or = 15 N/cm 2 onto inside of windshield.

Note. Firm thumb pressure attains approx. 30 N/cm 2 .

Scheme 158

Remove mounting template (1) carefully from fogging sensor (3).

64 11 208 Replacing heat exchanger

Scheme 159

Installation

Up to 12/2009 pipes must be replaced as well!

From 01/2010 pipes are automatically integral parts of the repair kit!

Refer to Electronic Parts Catalogue.

64 11 869 Replacing servodrive for blending flap

Necessary preliminary tasks

1. Remove «TRIM PANEL FOR PEDAL ASSEMBLY»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e90__51-45-185-removing-and-installingreplacing) .

Unfasten plug connection (1) and disconnect.

Unfasten screws (2).

Detach servodrive for blending flap (3) in direction of arrow from heater/air conditioner (4).

Scheme 160

Installation

Place servodrive for blending flap (3) over guide pin (5).

Servomotors must be re-addressed in the event of replacement!

Addressing can only be carried out with the BMW diagnosis system.

Service functions

1. Body
2. Heating and A/C function
3. Flap motors
4. Re-address flap motors

64 11 839 Replacing servodrive for footwell flap (automatic A/C)

Necessary preliminary tasks

1. Remove «RIGHT GLOVEBOX WITH HOUSING»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e90__51-16-366-removing-and-installing)

Detach right footwell heating duct (1) in area (2) in direction of arrow.

Detach right footwell heating duct (1) with adapter (3) from heater/air conditioner and remove in direction of arrow from right rear compartment heating duct (4).

Disconnect plug connection (1).

Release screws (2) and (3).

Detach bracket (4) complete with servodrives from heater/air conditioner (5).

Installation

Make sure bracket (4) is correctly seated on heater/air conditioner (5).

Scheme 161

Release screws (1).

Remove servodrive for footwell flap (2) from bracket (3).

Installation

Place servodrive for footwell flap (2) over guide pin (4).

Scheme 162

64 11 850 Replacing servodrive for rear compartment flap

Necessary preliminary tasks

1. Remove «TRIM FOR INSTRUMENT PANEL»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e90__51-45-181-removing-and-installingreplacing) , bottom right

Unfasten plug connection (1) and disconnect.

Release screws (2).

Detach servodrive for rear compartment flap (3) in direction of arrow from heater/air conditioner (4).

Installation

Place servodrive for rear compartment flap (3) exactly onto heater/air conditioner (4).

Scheme 163

64 12... Initializing Telestart handheld transmitter (T93) (from build date 03/2007)

Note. The Telestart hand-held transmitter must be initialized when: Hand-held transmitter is replaced Car Access System control unit is replaced

The auxiliary heater is switched on when ambient temperature is approx. 15°C with the hand-held transmitter and at a preselected switch-on time.

Direct activation is possible at any ambient temperature via the "Climate" menu item in the i-Drive, but not in driving mode.

To initialize a new hand-held transmitter, perform the following operations from inside the vehicle

Scheme 164

1. Close all doors on vehicle (vehicle must be unlocked!)
2. Within 5 seconds: Turn ignition lock from terminal "0" to terminal "R" and then back to terminal "0" (by inserting and removing key, insertion duration: 1 to 5 secs.)
3. Within 5 seconds: simultaneously press both buttons (1, 2) on hand-held transmitter until LED (3) lights up orange.
4. Release both buttons. Briefly press ON button (1) three times within 10 seconds; LED (3) flashes orange as confirmation.

Note. The vehicle's central locking closes and opens automatically on successful initialization.

The initialization process must be repeated if there is no feedback signal from the central locking system.

64 12... Initializing Telestart hand transmitter (T90) (up to build date 03/2007)

Note. The Telestart hand transmitter must be initialized when: Hand transmitter is replaced Car Access System control unit is replaced

The independent heating is switched on under an outside temperature of approx. 15°C with the hand transmitter and at a preselected switch-on time.

Direct activation is possible at any outside temperature via the "Climate" menu item in the i-Drive, but not in driving mode.

To initialize a new hand transmitter, perform the following operations from inside the vehicle

1. Close all vehicle doors
2. Within 5 seconds: Switch ignition lock from terminal "0" to terminal "R" and then back to terminal "0"
3. Within 5 seconds: Press OFF button (1) on hand transmitter and with OFF button (1) held down press ON button (2) three times quickly
4. Release both buttons. LED (3) on hand transmitter flashes

Note. The vehicle's central locking closes and opens automatically on successful initialization.

The initialization process must be repeated if there is no checkback signal from the central locking system.

64 12 160 Removing and installing or replacing complete independent heater with bracket

Recycling

Fuel escapes when fuel lines are detached. Have a suitable collecting container ready.

Catch and dispose of escaping fuel.

Observe country-specific waste-disposal regulations.

Necessary preliminary tasks

1. Drain coolant from radiator
2. Remove front left wheel arch trim

Note. For purposes of clarity, graphic shows front bumper removed.

Disconnect plug connection (1).

Scheme 165

Disconnect coolant hoses (1) and catch coolant in a suitable container.

Release screw (2).

Tightening torque 64 12 3AZ .

Release fuel line (3) and catch escaping fuel in a suitable container.

Release nuts (4) and remove complete independent heater bracket.

Tightening torque 64 12 1AZ .

Scheme 166

When replacing independent heater without bracket

Unclip retainer of intake silencer.

Turn metal tube (1) clockwise and remove intake silencer.

Release screws (2) and remove silencer (3).

Tightening torque 64 12 1AZ .

Install fuel intake line with filter.

Scheme 167

Remove coolant hoses (1) and feed out of bracket.

Installation

Risk of damage!

Make sure abrasion guard (2) is correctly seated.

Scheme 168

Disconnect plug connection (1).

Release screws (2) and remove independent heater from bracket (3).

Tightening torque 64 12 4AZ .

Scheme 169

Independent heaters many only be operated with the associated fuel pump.

In the event of incorrect installation, fuel can escape and black smoke can be issued when the independent heater is started.

Because of different build dates, installed fuel pumps must be checked.

Read out the heater number via the BMW DIS system and use this number to determine the associated fuel pump from the table below.

Determine fitted fuel pump model and if necessary install new FUEL PUMP .

Component allocation

FUEL PUMP COMPONENTS REFERENCE CHART

After installation

1. Vent cooling system

64 12 600 Removing and installing or replacing fuel pump

Diesel only

Note. FUEL PUMP REFERENCE CHART Build date up to 09/2006 Build date from 09/2006 Heater number: 6 974 470 9 112 792 Fuel pump: DP40: 6 951 678 (black housing) DP41: 6 979 466 (grey housing + yellow warning sticker)

Necessary preliminary tasks

1. Remove «LEFT UNDERBODY PANELLING»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e90__51-47-removing-and-installingreplacing-left)

Seal off water hoses at fuel pump with special tool 13 3 010 TERMINAL .

Scheme 170

Recycling

Fuel escapes when fuel lines are detached. Have a suitable collecting container ready.

Catch and dispose of escaping fuel.

Observe country-specific waste-disposal regulations.

Release screw (1).

Scheme 171

Disconnect plug connection (1).

Release hose clamps (2) and detach fuel hoses.

Disengage rubber retainers (3).

Note. Secure fuel pump (4) against falling out.

Scheme 172

Installation

Observe direction of flow of fuel pump (4).

64 12 089 Removing and installing or replacing muffler/silencer

Necessary preliminary tasks

1. Remove «FRONT BUMPER TRIM»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e90__51-11-156-removing-and-installing)

Release screws (1, 2) and remove muffler/silencer (3).

Tightening torque 64 12 1AZ .

Scheme 173

64 12 120 Removing and installing/replacing intake muffler for independent/auxiliary heater

Necessary preliminary tasks

1. Remove front «BUMPER TRIM»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e90__51-11-156-removing-and-installing)

Release retainer (1) and unscrew muffler (2) from connecting hose (3) in direction of arrow.

Installation

Intake muffler (2) must be replaced if retainer (1) is damaged.

Scheme 174

64 22... Removing air ducts

Detach right footwell heating duct (1) in area (2) in direction of arrow.

Detach right footwell heating duct (1) with adapter (3) from heater/air conditioner and remove in direction of arrow from right rear compartment heating duct (4).

Note. Lower instrument panel trim partially shown.

Detach left footwell heating duct (1) in area (2) in direction of arrow.

Detach left footwell heating duct (1) with adapter (3) from heater/air conditioner and remove in direction of arrow from left rear compartment heating duct (4).

Installation

Make sure retainer (2) is correctly seated on left/right footwell heating duct (1).

Insert footwell heating duct (1) with adapter (3) in rear compartment heating duct (4).

Attach footwell heating duct (1) in area (4) to heater/air conditioner. Make sure assembly is locked exactly at point (5).

64 22 162 Removing and installing/replacing center fresh-air grill

Necessary preliminary tasks

1. Remove «DECORATIVE STRIP ON INSTRUMENT PANEL ON RIGHT»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e90__51-45-380-removing-and-installing)

Release nuts (1) and remove center fresh-air grill (2) from decorative strip on instrument panel on right (3).

Scheme 175

64 22 137 Removing and installing/replacing left fresh-air grill

This operation is described in

1. Removing «DECORATIVE STRIP ON INSTRUMENT PANEL ON LEFT (REPLACEMENT)»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e90__51-45-370-removing-and-installing) .

64 22 191 Removing and installing/replacing rear compartment fresh-air grille

Lever out rear compartment fresh air grille (1) with special tool 00 9 341 at retaining points (2).

Disconnect associated plug connection and remove rear compartment fresh-air grille (1).

Scheme 176

64 22 138 Removing and installing/replacing right fresh-air grill

Necessary preliminary tasks

1. Remove «DECORATIVE STRIP ON INSTRUMENT PANEL ON RIGHT»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e90__51-45-380-removing-and-installing)

Lever out catches (2) and unclip right fresh-air grill (1) from right decorative strip on instrument panel (3).

Scheme 177

64 31 062 Removing and installing/replacing left lower microfilter housing section

Necessary preliminary tasks

1. Remove «UPPER SECTION OF MICROFILTER HOUSING»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-31-072-removing-and-installingreplacing)

Release screws (1).

Pull out rubber tab (2).

Remove cover (3) and remove lower microfilter housing section (4).

Installation

Ensure correct lead routing.

Scheme 178

Installation

Retaining lugs (1) must be correctly inserted in cowl panel (2).

Scheme 179

64 31 072 Removing and installing/replacing left upper microfilter housing section

Release screws (1).

Remove upper microfilter housing section (2) and if necessary disconnect plug connection for bonnet/hood contact switch (3).

Installation

Ensure correct lead routing.

Make sure upper microfilter housing section is correctly seated.

Scheme 180

Replacement

1. Modify «HOOD/BONNET CONTACT SWITCH»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#general-electrical-system-repair-e90__61-31-241-removing-and-installingreplacing)
2. Modify «MICROFILTER FOR INTERIOR VENTILATION»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-31-011-replacing-microfilter-for)

6431092 Removing and installing/replacing microfilter housing (lower section)

Necessary preliminary tasks

1. Remove «UPPER SECTION OF MICROFILTER HOUSING»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__6431081-removing-and-installingreplacing-microfilter-housing)

Release holder (1).

Release catches (3).

Remove right cover (2).

Installation note

Make sure right cover (2) is correctly seated.

Scheme 181

Left cover (4) is removed in same way as right cover.

Also for E90

Release cable holder (2) and remove hose (1) from cover (4).

Installation note

Make sure cable holder (2) and hose (1) are correctly seated in opening (3).

Scheme 182

E8x

Unfasten plug connection (1) and disconnect.

Unclip cable from guides (2).

Scheme 183

Unfasten plug connection (1) and disconnect.

Unclamp cable from guides (2).

Scheme 184

E81, E82, E87, E88

Open hose clamps (2) on hose (1).

Press detent lugs (3).

Release cable strip (1) in direction of arrow from lower section of microfilter housing (2).

Installation note

Retaining lugs (3) must not be damaged or missing.

Make sure cable strip is correctly seated.

Scheme 185

Release holder (2) on both sides.

Release screw (1) on both sides on lower section of microfilter housing (3).

Scheme 186

Feed out microfilter housing lower section (1) in direction of arrow and remove.

Installation note

Make sure microfilter housing lower section (1) is correctly seated.

Scheme 187

Installation note

Seal (2) of microfilter housing lower section (1) must not be damaged or missing.

Scheme 188

6431081 Removing and installing/replacing microfilter housing (upper section)

Note. Example shown on E87: Release screws (1). Unfasten screws (2 and 3). Remove upper section of microfilter housing (4).

Installation

Make sure upper section of microfilter housing (4) is correctly seated.

Scheme 189

Replacement

Release catches (1).

Release microfilter (2) in direction of arrow from upper section of housing (3).

Installation

Make sure microfilter (2) is correctly seated.

Scheme 190

64 31 063 Removing and installing/replacing right lower microfilter housing section

Necessary preliminary tasks

1. Remove «RIGHT UPPER MICROFILTER HOUSING SECTION»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-31-072-removing-and-installingreplacing)

Release screw (1).

Pull off rubber tabs (2) and remove cover (3).

Unclip AUC sensor (4) with electrical lead and remove lower microfilter housing section.

Installation

Ensure correct lead routing.

Scheme 191

Installation

Retaining lugs (1) must be correctly inserted in cowl panel (2).

Scheme 192

64 31 074 Removing and installing/replacing right upper microfilter housing section

Release screws (1) and remove upper microfilter housing section (2).

Installation

Make sure upper microfilter housing section is correctly seated.

Scheme 193

Replacement

Replace MICROFILTER FOR INTERIOR VENTILATION .

64 31 011 Replacing microfilter for interior ventilation

Note on cleaning

Spray microfilter housing from inside with BMW pollen filter housing cleaner* (observe instructions for use).

Comply WITH NOTES AND INSTRUCTIONS ON HANDLING CLEANING AGENTS !

Wipe away excess liquid.

This kills off germs, bacteria and fungi that cause smells.

The smell that results on the plastic parts of the microfilter housing is eliminated.

*BMW part number: 0 447 913

Necessary preliminary work

1. Remove upper microfilter housing section See «6431074 REMOVING AND INSTALLING/REPLACING RIGHT UPPER MICROFILTER HOUSING SECTION»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-31-074-removing-and-installingreplacing) or «6431072 REMOVING AND INSTALLING/REPLACING LEFT UPPER MICROFILTER HOUSING SECTION»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-31-072-removing-and-installingreplacing) on left and right

Unclip microfilter (1) with suitable tool and remove.

Installation note

Reset Condition Based Service display according to factory specification.

Scheme 194

64 50... A/C performance test (R 134a)

Before A/C performance test, some conditions must be met

1. Provision of a BMW diagnostic system. Safeguard electrical system integrity by checking the fault memory (no faults in the fault memory).
2. Provide a thermometer with separate gauge.
3. Perform the test in a suitable workshop area with an ambient temperature between 20°C and 30°C.

Re 1

Connect BMW diagnostic system to vehicle and display evaporator temperature.

Re 2

Position a thermometer with a separate gauge approx. 5 cm below the roof liner at the height of the B-pillar. Lay gauge outwards out of vehicle interior.

Re 3

Heating up the passenger compartment

1. A/C button is not activated when heating up.
2. Close all windows and doors.
3. Set air recirculation function.
4. Select air distribution mode for footwell and defrosting.
5. Maximum temperature setting
6. Maximum blower speed
7. Run engine at approx. 2000 RPM until operating temperature is reached, then idle speed.

Air-conditioning performance test

Turn on A/C compressor at a vehicle interior temperature of 50°C.

After 3 to 4 minutes, the evaporator sensor temperature must be < or = 15°C.

DRAW OFF AIR CONDITIONING if this temperature is not reached. Measure amount of refrigerant drawn off.

If drawn-off quantity does not correspond to SPECIFIED FILL QUANTITY : supplement refrigerant and repeat test.

If fill quantity is correct, continue troubleshooting by pressure measurement.

Note. Air conditioning with uncontrolled compressors only: If necessary, then continue troubleshooting by pressure measurement.

64 50 009 Drawing off, evacuating and filling heating and air conditioning system (R 134a)

Shown on N54 engine by way of example.

Direct connection of filling adapter (1) on the expansion valve is shown.

Note. Make sure filler connection line (1) is laid without kinks.

Scheme 195

Note. N52 engine only: On vehicles with hydraulic steering (e.g. AFS) oil reservoir (1) must be detached. Refer to: Remove oil reservoir for hydraulic steering

Scheme 196

Only BMW-approved tetraflourethane R134a refrigerant may be used

Restart engine only when air conditioning system has been correctly filled.

Carefully move the climate service station!

Comply with the operating instructions and maintenance intervals of the service station!

Highly sensitive components, such as scales, are installed in the climate service station. These components may be damaged by improper handling, such as fast driving over bumps. This will significantly reduce the measuring accuracy when drawing off and filling.

Note. In case of complaints, carry out a heating and air conditioning performance test!

If the system fails the test, draw off, evacuate and fill the heating and air conditioning system in accordance with the operating instructions of the relevant service station.

It is essential to adhere to the service station service intervals.

E60 only

If necessary, to connect service station, use manufacturer's adapter for high-pressure connection (red).

Notes for drawing off heating and air conditioning system

To help separation of refrigerant and refrigerant fluid, run engine at low speed (800-1200 RPM) and with heating and air conditioning system turned on for a few minutes.

The limits the entrainment of refrigerant fluid while it is drawn off.

Drawn-off refrigerant fluid must be changed and reintroduced via the service station.

Recycling

Dispose of drawn-off refrigerant fluid as hazardous waste.

Observe country-specific waste disposal regulations.

Notes for evacuating off heating and air conditioning system

Before each filling, evacuate the refrigerant system.

Observe an evacuation time of at least 30 minutes.

The evacuation procedure removes all traces of ambient air, water vapor and any other gases present from the heating and air conditioning system. This enables subsequent system filling with refrigerant.

If the vacuum does not remain stable when the system is off, run the procedure for leaks in the refrigerant circuit.

Notes for filling heating and air conditioning system

Before filling with refrigerant, replace the refrigerant fluid entrained during drawing off.

Also top up any lost fluid as indicated in the table

Loss of R134a refrigerant

Table 1 indicates the amount of coolant loss approved after a specific period of time. There is no leak. Refrigerant fluid may not be topped up.

Table 2 indicates how much refrigerant fluid must be topped up in the event of an unapproved coolant loss due to a leak after a specific period of time.

Different cases

1. Loss of refrigerant per Table 1 is not exceeded Top up lost R134a refrigerant It is not permitted to top up the refrigerant fluid
2. Loss of refrigerant per Table 1 is exceeded Top up lost R134a refrigerant Refrigerant fluid must be topped up additionally per Table 2 REFRIGERANT FLUID REFERENCE CHART Table 1: Number of years since last filling 0 - 1 1 - 2 2 - 3 3 - 4 4 - 5 Permissible loss [g] --> no need to top up refrigerant fluid < or = 30 < or = 60 < or = 90 < or = 120 < or = 150 REFRIGERANT FLUID REFERENCE CHART Table 2: Number of years since last filling R134a Coolant Loss [g] Top up quantity refrigerant fluid 0 -1 - <120 0 120 - 150 10 >150 20 1 - 2 - <180 0 180 - 210 10 >210 20 2 - 3 - <240 0 240 - 270 10 >270 20 3 - 4 - <300 0 300 - 330 10 <330 20 4 - 5 - <360 10 >360 20

Depending on the type of component replaced on the heating and air conditioning system, it may be necessary to top up the refrigerant fluid, even if no measurable losses have occurred during drawing off. Follow the notes provided by the heating and air conditioning system manufacturer, taking account of the tolerances (and inaccuracies) indicated in the operating instructions of the relevant service station.

Scheme 197

Information on the required refrigerant capacity for the entire heating and air conditioning system is contained on the type plate (1) in the engine compartment.

Installation note

Reseal refrigerant filler necks on vehicle with sealing caps.

64 50... Install the retrofit absorber for the air conditioning suction line

The retrofit kit may be used for vehicles with a production date from 09/2008.

Necessary preliminary work

Remove rear underbody protection

Unscrew nuts (1).

Remove the protective plate (2).

Note. Figure All-wheel drive vehicle

Scheme 198

Lay the steel measuring tape (2) onto the intake pipe (1).

Mark distance A =11 cm.

Scheme 199

Attach the lower edge of the vibration absorber (1) at the marked position and screw it to the intake pipe (2).

Tightening torque: 8 Nm

Scheme 200

64 50... Instructions for handling refrigerant R 134a

The filled refrigerant circuit of the A/C system is subject to gauge pressure. When carrying out repairs on the A/C system, it is absolutely essential to draw off the refrigerant.

Do not weld or solder on to filled A/C systems or in rooms into which R 134a may have leaked. Exposure to flames or high temperatures (= 50°C) may give rise to toxic decomposition products (fluorine gas). For this reason, do not smoke either.

R 134a must be drawn off, cleaned and returned to the A/C system with a service station following the relevant operating instructions.

Avoid all contact with liquid or gaseous R 134a. Wear protective goggles and gloves when working on the refrigerant circuit. R 134a acting on the skin can cause frostbite. Rinse affected body parts thoroughly with cold water. If R 134a gets into your eyes, likewise rinse with plenty of water and, if necessary, remove contact lenses if worn. Then seek immediate medical attention. Likewise seek immediate medical attention if you experience problems after inhaling R 134a fumes.

As a gas, R 134a is colorless, odorless and heavier than air. If it enters the atmosphere, this may result in an imperceptible danger of asphyxiation or in cardiac palpitations, especially in workshop pits. Ventilate rooms adequately; if necessary, turn on installed extractor systems.

For a properly functioning A/C system, it is essential to have the greatest possible levels of cleanliness when working on the A/C system and the best possible evacuation (at least 30 minutes dehumidification from refrigerant circuit) before each filling of the A/C system.

R 134a absorbs moisture very easily. Therefore, seal off opened pipes, condenser, evaporator, compressor and drier bottle immediately with plugs.

With replacement parts, the plugs may only be removed immediately before the lines are connected.

In the event of warranty claims, the old parts must be provided with plugs to be able to determine the cause of the damage.

If an A/C system has been completely drained by leakage, accident or repair, the DRIER ELEMENT must be replace as excessive moisture may have entered the system.

Store filled pressurized refrigerant bottles in such a way that they are not exposed to direct sunlight or other heat sources (max. 45°C). Also avoid exposing them to mechanical stress (e.g. by dropping).

In the event of fire, carbon dioxide (CO2), extinguishing powder and a sprayed water jet are deemed to be suitable extinguishing agents. Cool reservoirs at risk with a sprayed water jet (risk of bursting!).

64 50... Instructions for handling refrigerant oil (for refrigerant R 134a)

Action to be taken after contact with refrigerant oil

1. After contact with eyes, rinse thoroughly with plenty of water and take out contact lenses (if worn). Then seek immediate medical attention.
2. After contact with the skin, wash body parts affected with plenty of soap and water.
3. Do not induce vomiting if oil is swallowed, seek immediate medical attention.
4. If inhaled, introduce the person affected to fresh air. Seek medical attention if problems persist.

Recycling

Dispose of drawn-off refrigerant oil as hazardous waste.

Observe country-specific waste-disposal regulations.

Absorb escaping refrigerant oil with fluid-binding material.

Notify the relevant authorities if larger amounts of refrigerant oil are discharged into aboveground water supplies, drainage systems or subsoil.

64 52... Instructions for opening and replacing parts in refrigerant circuit

I. Part replacement as preliminary work fur further repair work and based on gradual leakage

(minor leak, e.g. hairline crack)

Procedure

1. «DRAW OFF»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-50-009-drawing-off-evacuating) A/C system, then determine drawn-off refrigerant oil quantity
2. Carry out part replacement
3. Replace removed refrigerant fluid and additionally top up with new refrigerant fluid according to components replaced: Compressor: refer to «NOTES ON REPLACING COMPRESSOR»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-50-009-drawing-off-evacuating) Evaporator: 10 ml Capacitor: 20 ml Desiccant insert/dryer flask: 20 ml Each replaced refrigerant line: 10 ml Capacitor with integrated dryer: 40 ml Safety pressure switch and seals: no additional refrigerant fluid
4. «EVACUATE AND FILL»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-50-009-drawing-off-evacuating) A/C system

II. Part replacement due to sudden leak

(major leak, e.g. pipe break due to accident)

Procedure

1. «DRAW OFF»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-50-009-drawing-off-evacuating) A/C system, then determine drawn-off refrigerant oil quantity
2. Carry out part replacement
3. Replace removed refrigerant fluid and additionally replace with new refrigerant fluid according to parts replaced: Compressor: refer to «NOTES ON REPLACING COMPRESSOR»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-52-instructions-for-compressor-replacement) Evaporator: 35 ml Capacitor: 35 ml Desiccant insert/dryer flask: 55 ml Each replaced refrigerant line: 35 ml Capacitor with integrated dryer: 55 ml Safety pressure switch and seals: no additional refrigerant fluid
4. «EVACUATE AND FILL»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-50-009-drawing-off-evacuating) A/C system

64 53... Instructions for replacement of air conditioning capacitors and radiator/coolers

Note. The deformations shown in illustration "1" (Scheme 202) can be bent back with a standard fin comb.

Damage to lines carrying media or on the flat pipe require replacement of the radiator/ or air conditioning condenser. Examples of such damage are shown in illustrations "2", "3", "4", "5", and "6" (Scheme 202)

Scheme 201

64 50... Leak detection with ultraviolet additives (UV additives) (BMW leak-testing case)

Use only BMW-approved UV additives (e.g. TRACER).

Only the basic procedure is described in the following!

Note. Fill the hose system of the hand pump completely with UV additive PRIOR to use Use the UV additive exclusively for BMW-approved refrigerant fluids Do not operate the air conditioning system while the hand pump is connected or in use The air conditioning system must always be filled with an adequate amount of refrigerant to enable the leak-detecting agent to be properly distributed

Necessary preliminary work

Before actually testing for leaks, check the entire refrigerant circuit using the UV leak detection lamp to ensure that no UV additive is already in the area of the refrigerant circuit.

If already illuminated areas are found, carefully clean the area in question with the cleaning agent contained in the case.

On initial use

Connect hand pump (1) to additive cartridge (2) and hose piece (3).

Scheme 202

On initial use

Attach vent valve (1) to quick-release coupling (2).

Turn handle (3) on hand pump to advance the plunger until a small amount of UV additive emerges. This vents the hose system.

Scheme 203

Attach quick-release coupling (1) to low-pressure connection (2) of air conditioning system.

Turn handle on hand pump (3) until the required amount of UV additive is added.

Scheme 204

The quantity of UV additive to be added is dependent on the AMOUNT OF REFRIGERANT IN THE REFRIGERANT CIRCUIT

1. Air conditioning systems with refrigerant filling up to 900 g: one graduation mark (4) on additive cartridge
2. Air conditioning systems with refrigerant filling in excess of 900 g: two graduation marks (4) on additive cartridge

Note. After filling, remove quick-release coupling (1) and if necessary use the cleaning agent contained in the special tool case to clean up the UV additive.

Further tasks

1. Start engine
2. Run air conditioning system at highest setting for 5 - 10 minutes in order to ensure adequate distribution of dye in the system
3. Turn off engine.
4. Check all air conditioning system components for possible leaks
5. Possible leaks show up in luminous green

Complete accompanying information label (1) with the relevant data and attach in an easily visible position next to the filling capacity information label (2).

Scheme 205

64 50... Safety instructions for handling R134a refrigerant

Protective measures/rules of conduct

1. Wear safety goggles
2. Wear oil-resistant protective gloves
3. Do not smoke!
4. Observe country-specific safety regulations.

First aid measures

1. Eye contact: In the event of contact with the eyes, rinse immediately with plenty of running water and consult an opthalmologist.
2. Skin contact: In the event of contact with skin, remove affected clothing immediately and rinse with plenty of water.
3. After inhalation: If refrigerant vapors are inhaled in greater concentrations, remove the person affected to an area of fresh air and keep them under supervision. Consult a doctor. If breathing problems are experienced, breathe additional oxygen. If the person affected is breathing with difficulty or has stopped breathing, incline the person's head at the neck and administer the kiss of life.

64 50... Safety instructions for handling refrigerant oil

Protective measures/rules of conduct

1. Wear safety goggles
2. Wear oil-resistant protective gloves
3. Do not smoke!
4. Observe country-specific safety regulations.

First aid measures

1. If swallowed: Do NOT induce vomiting, unless expressly instructed to do so by medical personnel. Do not administer anything to an unconscious person through their mouth. Consult a doctor immediately if larger quantities of this substance are swallowed. Loosen tight-fitting items of clothing (e.g. collar, tie, belt or similar).
2. Eye contact: Remove contact lenses if worn. In the event of eye contact, rinse eyes for at least 15 minutes with plenty of water. It is essential to use WARM WATER. Consult a doctor.
3. Skin contact: In the event of skin contact, rinse immediately with plenty of water. Remove contaminated clothes and shoes. Wash affected clothes before wearing again. Clean shoes thoroughly before reusing. Call for a doctor.
4. After inhalation: If inhaled, take the person affected outside into fresh air immediately and keep them under supervision. Call for a doctor. If breathing difficulties are experienced, administer additional oxygen. If the person affected stops breathing, administer the kiss of life.

Recycling

Catch and dispose of emerging refrigerant oil.

Observe country-specific waste-disposal regulations.

64 51 001 Cleaning evaporator

Recycling

Carry out the cleaning operation in a suitable washing bay as the emerging cleaning agent escapes through the drain openings in the transmission tunnel.

After completing cleaning, allow car to drip-dry for approx. 5 minutes.

Necessary preliminary tasks

1. Remove «REAR UNDERBODY PROTECTION»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e90__51-47-491-removing-and-installingreplacing)
2. Remove «HEATER/AIR CONDITIONER FAN»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-11-212-removing-and-installingreplacing)

Connect special tool 64 1 260 SPRAYER (spray lance) to spray gun (2).

Insert spray lance 64 1 260 SPRAYER through opening (1) into fresh air duct.

Scheme 206

By moving spray lance (1) back and forth, spray a uniform amount of cleaning agent onto evaporator.

Spray lance 64 1 260 SPRAYER shown on removed and cut-open heater/air conditioner

Scheme 207

1. Spray lance «64 1 260 SPRAYER»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-special-tools-e90) in upper end position (1)
2. Spray lance «64 1 260 SPRAYER»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-special-tools-e90) in lower end position (2)

By moving spray lance back and forth, spray a uniform amount of cleaning agent onto evaporator.

Note. Set heating - A/C system to footwell ventilation and fresh-air mode. Open windows/doors.

Start car and run heating - A/C system at maximum fan power for approx. 5 minutes in order to dry evaporator.

In order to eliminate the last remnants of cleaning agent, repeat this procedure shortly before handover to the customer.

I. Part replacement as preliminary work fur further repair work and based on gradual leakage

(minor leak, e.g. hairline crack)

Procedure

1. «DRAW OFF»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-50-009-drawing-off-evacuating) A/C system, then determine drawn-off refrigerant oil quantity
2. Carry out part replacement
3. Replace removed refrigerant fluid and additionally top up with new refrigerant fluid according to components replaced: Compressor: refer to «NOTES ON REPLACING COMPRESSOR»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-50-009-drawing-off-evacuating) Evaporator: 10 ml Capacitor: 20 ml Desiccant insert/dryer flask: 20 ml Each replaced refrigerant line: 10 ml Capacitor with integrated dryer: 40 ml Safety pressure switch and seals: no additional refrigerant fluid
4. «EVACUATE AND FILL»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-50-009-drawing-off-evacuating) A/C system

II. Part replacement due to sudden leak

(major leak, e.g. pipe break due to accident)

Procedure

1. «DRAW OFF»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-50-009-drawing-off-evacuating) A/C system, then determine drawn-off refrigerant oil quantity
2. Carry out part replacement
3. Replace removed refrigerant fluid and additionally replace with new refrigerant fluid according to parts replaced: Compressor: refer to «NOTES ON REPLACING COMPRESSOR»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-52-instructions-for-compressor-replacement) Evaporator: 35 ml Capacitor: 35 ml Desiccant insert/dryer flask: 55 ml Each replaced refrigerant line: 35 ml Capacitor with integrated dryer: 55 ml Safety pressure switch and seals: no additional refrigerant fluid
4. «EVACUATE AND FILL»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-50-009-drawing-off-evacuating) A/C system

64 51... Leak-testing condenser

Necessary preliminary tasks

1. Drain off «AIR CONDITIONING SYSTEM»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-50-009-drawing-off-evacuating)
2. Detach refrigerant lines from condenser

Tightening torque 64 53 6AZ .

E70 only

Tightening torque 64 53 3AZ, see 64 53 REFRIGERANT LINES AND EXPANSION VALVE .

Scheme 208

Fit and secure sealing adapter to connection of low-pressure line.

Fit and secure test adapter 64 5 122 to connection of high-pressure line.

Tightening torque 64 53 6AZ.

E70 only

Tightening torque 64 53 3AZ, see 64 53 REFRIGERANT LINES AND EXPANSION VALVE

Scheme 209

Connect special tool 64 5 122 to special tool 64 5 121 HOSE .

Scheme 210

Connect nitrogen pressure bottle with pressure reducer to pressure gauge and then connect to special tool 64 5 121 HOSE (connecting hose).

Note. Testing apparatus must be leakproof. Ambient temperature and temperature of vehicle must not change during the test procedure. Do not move the vehicle during this period

Apply test pressure of 10 bar slowly and close nitrogen pressure bottle.

Check leak-tightness of testing apparatus and of connection to refrigerant line.

Set test pressure of 10 bar is only permitted to drop by 2 bar to 8.5 bar over a test period of 1.5 hours.

If the pressure loss is greater than 1.5 bar, this indicates that there is a leak in the condenser unit.

After leak-testing

1. Replace sealing rings. Use special tool «00 9 030 WEDGE»(/bmw/m3/e90-2007-2013/remont/oem-general-information/#maintenance-and-general-information-special-tools-e90) to mount sealing rings without damaging them.
2. Assemble A/C system
3. Evacuate and fill A/C system

64 51... Leak-testing evaporator

Necessary preliminary tasks

1. Remove «EXPANSION VALVE»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-51-525-removing-and-installing)

Replace sealing rings (1) and coat with refrigerant oil

Scheme 211

Screw special tool 64 5 124 together with retaining clip (1).

Tightening torque 64 53 13AZ .

Scheme 212

Connect special tool 64 5 124 to special tool 64 5 121 HOSE .

Scheme 213

Connect pressurized nitrogen cylinder with pressure reducing valve to pressure gauge and then connect to special tool 64 5 121 HOSE (connecting hose).

Note. Testing apparatus must be leakproof. Ambient temperature and temperature of vehicle must not change during the test procedure. Do not move the vehicle during this period

Apply test pressure of 10 bar slowly and close nitrogen pressure bottle.

Check leak-tightness of testing apparatus and of connection to refrigerant line.

Set test pressure of 10 bar is only permitted to drop by 2 bar to 8.5 bar over a test period of 1.5 hours.

If the pressure loss is greater than 1.5 bar, this indicates that there is a leak in the evaporator unit.

After leak-testing

1. Replace sealing rings. Use special tool «00 9 030 WEDGE»(/bmw/m3/e90-2007-2013/remont/oem-general-information/#maintenance-and-general-information-special-tools-e90) to mount sealing rings without damaging them.
2. Assemble A/C system
3. «EVACUATE AND FILL A/C SYSTEM»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-50-009-drawing-off-evacuating)

64 51 525 Removing and installing or replacing expansion valve

If A/C system is opened for more than 24 hours: REPLACE DESICCANT INSERT FOR A/C SYSTEM

Necessary preliminary tasks

1. «DRAWING OFF, EVACUATING AND FILLING THE A/C SYSTEM»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-50-009-drawing-off-evacuating) are not included in the time value given for this work operation
2. Remove «LOWER SECTION OF MICROFILTER HOUSING»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-31-062-removing-and-installingreplacing)
3. Remove left «(OR RIGHT) SUSPENSION CROSSBRACE»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e90__51-71-345-removing-and-installingreplacing)

Note. Work described on the E90 by way of example, deviations in detail are possible in other vehicles.

Release screws (1, 2), disconnect refrigerant lines and lay to one side.

Tightening torque 64 53 2AZ .

Scheme 214

Installation

Replace sealing rings.

Use special tool 00 9 030 WEDGE to mount sealing rings without damaging them.

Release screws (1) and remove expansion valve (2).

Tightening torque 64 53 13AZ .

Installation

Replace sealing rings.

Use special tool 00 9 030 WEDGE to mount sealing rings without damaging them.

Scheme 215

Installation

Place expansion valve (1) exactly on refrigerant lines (2) and (3).

Fit screws of expansion valve (1) and make sure retainer (4) is correctly positioned.

Scheme 216

After installation

1. «EVACUATE AND FILL A/C SYSTEM»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-50-009-drawing-off-evacuating)

64 52... Instructions for compressor replacement

When evacuating the air-conditioning system, refrigerant fluid is also extracted and collected in the oil separator of the service station.

Scheme 217

After evacuation, the refrigerant must be filtered in the service station as the oil separator could still contain a liquid refrigerant/oil mixture. The filtering process gasifies the refrigerant completely and only the previously bound refrigerant fluid remains in the oil separator. Measure and note down this quantity of refrigerant fluid

REFER TO EVACUATING A/C SYSTEM .

Transfer the refrigerant fluid remaining in the previous compressor via the filler plug completely into a measuring cup.

Scheme 218

Measure the amount of refrigerant fluid collected from the previous compressor.

Scheme 219

The new compressor is filled at the factory with refrigerant fluid. Open filler plug and pour entire contents of compressor into a clean collecting vessel.

Installation note

Replace sealing rings.

Scheme 220

Use special tool 00 9 030 WEDGE to mount sealing rings without damaging them.

Observe Tightening Torque, 64 52 2AZ. See AIR CONDITIONING COMPRESSOR or A/C COMPRESSOR

From the new compressor, pour the same amount of refrigerant fluid (as drained from the previous compressor) + 10 g extra into a clean measuring cup and pour again into the new compressor.

Remaining refrigerant fluid can be poured into service station tank, REFER TO EVACUATING A/C SYSTEM .

Otherwise the excess refrigerant fluid must be disposed of correctly.

On account of its hygroscopic properties, refrigerant fluid must not be stored in open containers.

Scheme 221

The refrigerant fluid drawn off from the oil separator of the service station and from the previous compressor must not be reused and must be correctly disposed of.

Scheme 222

After installing the new compressor, it is essential before filling the A/C system to pour the same amount of the previously drawn off refrigerant fluid into the system again

REFER TO EVACUATING A/C SYSTEM .

Scheme 223

Installation note

If air conditioning system is opened for more than 24 hours: REPLACE DRYER FLASK/DESICCANT INSERT .

I. Part replacement as preliminary work fur further repair work and based on gradual leakage

(minor leak, e.g. hairline crack)

Procedure

1. «DRAW OFF»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-50-009-drawing-off-evacuating) A/C system, then determine drawn-off refrigerant oil quantity
2. Carry out part replacement
3. Replace removed refrigerant fluid and additionally top up with new refrigerant fluid according to components replaced: Compressor: refer to «NOTES ON REPLACING COMPRESSOR»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-50-009-drawing-off-evacuating) Evaporator: 10 ml Capacitor: 20 ml Desiccant insert/dryer flask: 20 ml Each replaced refrigerant line: 10 ml Capacitor with integrated dryer: 40 ml Safety pressure switch and seals: no additional refrigerant fluid
4. «EVACUATE AND FILL»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-50-009-drawing-off-evacuating) A/C system

II. Part replacement due to sudden leak

(major leak, e.g. pipe break due to accident)

Procedure

1. «DRAW OFF»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-50-009-drawing-off-evacuating) A/C system, then determine drawn-off refrigerant oil quantity
2. Carry out part replacement
3. Replace removed refrigerant fluid and additionally replace with new refrigerant fluid according to parts replaced: Compressor: refer to «NOTES ON REPLACING COMPRESSOR»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-52-instructions-for-compressor-replacement) Evaporator: 35 ml Capacitor: 35 ml Desiccant insert/dryer flask: 55 ml Each replaced refrigerant line: 35 ml Capacitor with integrated dryer: 55 ml Safety pressure switch and seals: no additional refrigerant fluid
4. «EVACUATE AND FILL»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-50-009-drawing-off-evacuating) A/C system

64 52 521 Replacing A/C system compressor (S65)

Necessary preliminary tasks

1. «DRAIN OFF AIR CONDITIONING SYSTEM»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-50-009-drawing-off-evacuating)
2. Remove A/C compressor «DRIVE BELT»(/bmw/m3/e90-2007-2013/remont/mechanical/#engine-repair-e90__11-28-010-replacing-alternator-drive)
3. Drain «COOLANT»(/bmw/m3/e90-2007-2013/remont/cooling-system-mechanical/#cooling-system-repair-e90__17-00-005-draining-and-adding) from radiator
4. Remove coolant hose from radiator at bottom

Clamp off overflow hoses (1) and lay to one side.

Unfasten screws (2).

Raise coolant tank (3) and disconnect associated plug connection.

Place coolant tank (3) to one side.

Scheme 224

Disconnect plug connection (1).

Release screws (2) and remove refrigerant lines.

Tightening torque 64 52 1AZ .

Installation

Replace sealing rings.

Use special tool 00 9 030 WEDGE to mount sealing rings without damaging them.

Scheme 225

Release screws (1, 2) and remove holder (3).

Release screw (4) and feed out compressor (5) towards top.

Scheme 226

Installation

If necessary, replace damaged adapter sleeves (1).

Scheme 227

After installation

1. «FILL AND VENT»(/bmw/m3/e90-2007-2013/remont/cooling-system-mechanical/#cooling-system-repair-e90__17-00-005-draining-and-adding) cooling system
2. Evacuate and fill «A/C SYSTEM»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-50-009-drawing-off-evacuating)

I. Part replacement as preliminary work fur further repair work and based on gradual leakage

(minor leak, e.g. hairline crack)

Procedure

1. «DRAW OFF»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-50-009-drawing-off-evacuating) A/C system, then determine drawn-off refrigerant oil quantity
2. Carry out part replacement
3. Replace removed refrigerant fluid and additionally top up with new refrigerant fluid according to components replaced: Compressor: refer to «NOTES ON REPLACING COMPRESSOR»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-50-009-drawing-off-evacuating) Evaporator: 10 ml Capacitor: 20 ml Desiccant insert/dryer flask: 20 ml Each replaced refrigerant line: 10 ml Capacitor with integrated dryer: 40 ml Safety pressure switch and seals: no additional refrigerant fluid
4. «EVACUATE AND FILL»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-50-009-drawing-off-evacuating) A/C system

II. Part replacement due to sudden leak

(major leak, e.g. pipe break due to accident)

Procedure

1. «DRAW OFF»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-50-009-drawing-off-evacuating) A/C system, then determine drawn-off refrigerant oil quantity
2. Carry out part replacement
3. Replace removed refrigerant fluid and additionally replace with new refrigerant fluid according to parts replaced: Compressor: refer to «NOTES ON REPLACING COMPRESSOR»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-52-instructions-for-compressor-replacement) Evaporator: 35 ml Capacitor: 35 ml Desiccant insert/dryer flask: 55 ml Each replaced refrigerant line: 35 ml Capacitor with integrated dryer: 55 ml Safety pressure switch and seals: no additional refrigerant fluid
4. «EVACUATE AND FILL»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-50-009-drawing-off-evacuating) A/C system

See INSTRUCTIONS FOR REPLACEMENT OF AIR CONDITIONING CAPACITORS AND RADIATOR/COOLERS .

Necessary preliminary tasks

1. Drain off «AIR CONDITIONING SYSTEM»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-50-009-drawing-off-evacuating)
2. Detach refrigerant lines from condenser

Tightening torque 64 53 6AZ .

E70 only

Tightening torque 64 53 3AZ, see 64 53 REFRIGERANT LINES AND EXPANSION VALVE

Fit and secure sealing adapter to connection of low-pressure line.

Fit and secure test adapter 64 5 122 to connection of high-pressure line.

Tightening torque 64 53 6AZ.

E70 only

Tightening torque 64 53 3AZ, see 64 53 REFRIGERANT LINES AND EXPANSION VALVE

Connect special tool 64 5 122 to special tool 64 5 121 HOSE .

Connect nitrogen pressure bottle with pressure reducer to pressure gauge and then connect to special tool 64 5 121 HOSE (connecting hose).

Note. Testing apparatus must be leakproof. Ambient temperature and temperature of vehicle must not change during the test procedure. Do not move the vehicle during this period

Apply test pressure of 10 bar slowly and close nitrogen pressure bottle.

Check leak-tightness of testing apparatus and of connection to refrigerant line.

Set test pressure of 10 bar is only permitted to drop by 2 bar to 8.5 bar over a test period of 1.5 hours.

If the pressure loss is greater than 1.5 bar, this indicates that there is a leak in the condenser unit.

After leak-testing

1. Replace sealing rings. Use special tool «00 9 030 WEDGE»(/bmw/m3/e90-2007-2013/remont/oem-general-information/#maintenance-and-general-information-special-tools-e90) to mount sealing rings without damaging them.
2. Assemble A/C system
3. Evacuate and fill A/C system

64 53... Notes on replacing dryer flask or desiccant insert

Note for all E8x and all E9x vehicles

Replacement of desiccant insert is only possible until 12/08.

Beginning in 12/08, the air conditioning capacitor must be replaced.

The dryer flask or desiccant insert does not have to be replaced at regular inspection intervals in a functioning, leak proof A/C system.

However, the dryer flask or desiccant insert must absolutely be replaced in the event of

1. contamination of the refrigerant with debris (e.g. when the compressor is clamped).
2. a leaking A/C system or loss of refrigerant
3. the refrigerant circuit being open for a period exceeding 24 hours, e.g. during a repair.

Scheme 228

64 53 550 Removing and installing or replacing capacitor for heating and air conditioning system

Note. Follow NOTES for opening and replacing parts in refrigerant circuit. If Air conditioning system is opened for more than 24 hours: REPLACE DESICCANT INSERT FOR HEATING AND AIR CONDITIONING SYSTEM

Necessary preliminary work

1. «DRAWING OFF, EVACUATING AND FILLING THE HEATING AND AIR CONDITIONING SYSTEM»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-50-009-drawing-off-evacuating) are not included in the time value given for this job item
2. Remove «RADIATOR»(/bmw/m3/e90-2007-2013/remont/cooling-system-mechanical/#cooling-system-repair-e90__17-11-000-removing-and-installing)

Release screws (1).

Tightening torque 64 53 1AZ .

Disconnect suction and pressure lines and lay to one side.

Installation note

Replace sealing rings.

Use special tool 00 9 030 WEDGE to install sealing rings without damaging them.

Scheme 229

Release screw (1).

Lever out clamp (2).

Remove capacitor (3) towards rear.

Installation note

Make sure retaining clips are correctly seated in area (4).

Scheme 230

Installation note

Make sure capacitor (1) is securely seated in area (2).

Scheme 231

After installation

1. «EVACUATE AND FILL HEATING AND AIR CONDITIONING SYSTEM»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-50-009-drawing-off-evacuating)
2. Fill cooling system

64 53 515 Replacing desiccant insert for air conditioning system

Note. Follow NOTES for opening and replacing parts in refrigerant circuit. If air conditioning system is opened for more than 24 hours: Follow INSTRUCTIONS ON REPLACING DESICCANT INSERT .

Necessary preliminary work

1. «DRAWING OFF, EVACUATING AND FILLING THE HEATING AND AIR CONDITIONING SYSTEM»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-50-009-drawing-off-evacuating) are not included in the time value given for this job item
2. Remove «CAPACITOR»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-53-550-removing-and-installing)

If necessary, pierce label over sealing cap (1).

Remove cap (1) from capacitor (2).

Installation note

Tightening torque 64 53 12AZ See REFRIGERANT LINES AND EXPANSION VALVE or AIR CONDITIONING COMPRESSOR .

Scheme 232

Remove Seeger circlip ring (1) with suitable pliers.

Scheme 233

With assistance of a screwed-in screw (1), pull the desiccant insert (2) out of the capacitor (3).

Scheme 234

After installation

1. Top up and bleed the cooling system and check for watertightness
2. «EVACUATE AND FILL HEATING AND AIR CONDITIONING SYSTEM»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-50-009-drawing-off-evacuating)

64 53 642 Replacing line from compressor to condenser (S65)

Necessary preliminary tasks

1. «DRAWING OFF, EVACUATING AND FILLING THE A/C SYSTEM»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-50-009-drawing-off-evacuating) are not included in the time value given for this work operation
2. Release coolant tank and place to one side

Release screw (1).

Tightening torque 64 52 1AZ .

Release screw (2) and remove refrigerant line.

Tightening torque 64 53 6AZ .

Installation

Replace sealing rings.

Use special tool 00 9 030 WEDGE to mount sealing rings without damaging them.

Scheme 235

After installation

1. Evacuate and fill «A/C SYSTEM»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-50-009-drawing-off-evacuating)

64 53 670 Replacing line from compressor to evaporator (S85)

Necessary preliminary work

1. «DRAIN OFF AIR CONDITIONING SYSTEM»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-50-009-drawing-off-evacuating)
2. Remove «INTAKE SILENCER HOUSING»(/bmw/m3/e90-2007-2013/remont/fuel-system/#fuel-system-repair-e90__13-71-000-removing-and-installingreplacing)
3. Remove «AIR MANIFOLD»(/bmw/m3/e90-2007-2013/remont/mechanical/#engine-repair-e90__11-61-050-removing-and-installing)
4. Remove both «LEFT (OR RIGHT) SUSPENSION CROSSBRACE»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e90__51-71-345-removing-and-installingreplacing)
5. Release refrigerant tank and place to one side

Release screw (1) and remove refrigerant line.

Installation note

Replace sealing rings.

Use special tool 00 9 030 WEDGE to install sealing rings without damaging them.

Scheme 236

Expose refrigerant line up to evaporator connection.

Release screw (1) and remove refrigerant line.

Installation note

Replace sealing rings.

Use special tool 00 9 030 WEDGE to mount sealing rings without damaging them.

Scheme 237

After installation

1. Evacuate and fill «A/C SYSTEM»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-50-009-drawing-off-evacuating) (R 134a)

64 53 660 Replacing line from condenser to evaporator (S65)

Necessary preliminary tasks

1. «DRAWING OFF, EVACUATING AND FILLING THE A/C SYSTEM»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-50-009-drawing-off-evacuating) are not included in the time value given for this work operation
2. Remove «INTAKE FILTER HOUSING»(/bmw/m3/e90-2007-2013/remont/fuel-system/#fuel-system-repair-e90__13-71-000-removing-and-installingreplacing)
3. Release coolant tank and place to one side

Release screw (1) and remove refrigerant line.

Tightening torque 64 53 6AZ .

Installation

Replace sealing rings.

Use special tool 00 9 030 WEDGE to mount sealing rings without damaging them.

Scheme 238

Expose refrigerant line up to evaporator connection.

Release screw (1) and remove refrigerant line.

Tightening torque 64 53 2AZ .

Installation

Replace sealing rings.

Use special tool 00 9 030 WEDGE to mount sealing rings without damaging them.

Scheme 239

Replacement

Modify SAFETY PRESSURE SWITCH .

After installation

1. Evacuate and fill «A/C SYSTEM»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-50-009-drawing-off-evacuating)

64 53 520 Replacing safety pressure switch

Note. If A/C system is opened for more than 24 hours: REPLACE DESICCANT INSERT FOR A/C SYSTEM

Necessary preliminary tasks

1. «DRAWING OFF, EVACUATING AND FILLING THE A/C SYSTEM»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-50-009-drawing-off-evacuating) are not included in the time value given for this work operation!

Disconnect plug connection (1) and release safety pressure switch (2).

Tightening torque 64 53 14AZ .

Scheme 240

After installation

1. «EVACUATE AND FILL A/C SYSTEM»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-50-009-drawing-off-evacuating)

64 53... Replacing valve insert for refrigerant line

Follow INSTRUCTIONS for opening and replacing parts in refrigerant circuit!

If A/C system is opened for more than 24 hours: REPLACE DESICCANT INSERT FOR A/C SYSTEM

Note. The special tool is available under BMW order number: 81 34 0 427 679 from the BMW workshop equipment catalogue.

Necessary preliminary tasks

1. «DRAWING OFF, EVACUATING AND FILLING THE A/C SYSTEM»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-50-009-drawing-off-evacuating) are not included in the time value given for this work operation

Twist valve insert out of filler neck (2) with remover (1).

Installation

Screw in valve insert hand-tight only.

Scheme 241

After installation

1. «EVACUATE AND FILL A/C SYSTEM»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-50-009-drawing-off-evacuating)
2. Check leak-tightness of valve insert with soapy solution

In event of leakage

1. «EVACUATE»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-50-009-drawing-off-evacuating) A/C system
2. Check sealing faces on line and valve insert for damage, replace line or valve insert if necessary
3. If necessary, carry out «LEAK DETECTION»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-50-leak-detection-with-ultraviolet)

See also:
• RIGHT GLOVEBOX WITH HOUSING
• FOLLOW INSTRUCTIONS FOR WORKING ON COOLING SYSTEM
• INTAKE AIR MANIFOLD
• SECONDARY-AIR PUMP
• LOWER SECTION OF STEERING SPINDLE
• LEFT (OR RIGHT) SUSPENSION CROSSBRACE
• INSTRUMENT PANEL TRIM
• COMPLETE STEERING COLUMN
• CARRIER FOR INSTRUMENT PANEL
• 64 11 1AZ
• VENT COOLING SYSTEM AND CHECK FOR WATER LEAKS
• SUCTION FILTER HOUSING
• 1700005 DRAINING AND ADDING COOLANT (S65)
• 1700039 VENTING COOLING SYSTEM AND CHECKING FOR WATER LEAKS (S65)
• TRIM PANEL FOR PEDAL ASSEMBLY
• TRIM FOR INSTRUMENT PANEL
• PROTECTION AGAINST ELECTROSTATIC DAMAGE (ESD PROTECTION)
• RIGHT DECORATIVE TRIM ON INSTRUMENT PANEL
• 00 9 340 REMOVAL AID
• LEFT UNDERBODY PANELLING
• 13 3 010 TERMINAL
• FRONT BUMPER TRIM
• DECORATIVE STRIP ON INSTRUMENT PANEL ON LEFT (REPLACEMENT)
• HOOD/BONNET CONTACT SWITCH
• SPECIFIED FILL QUANTITY
• 32 1 270 PLUG
• REAR UNDERBODY PROTECTION
• 64 1 270 SPRAYER
• 64 53 REFRIGERANT LINES AND EXPANSION VALVE
• DRIVE BELT
• RADIATOR
• 6450... SAFETY INSTRUCTIONS FOR HANDLING R134A REFRIGERANT
• 6450... INSTRUCTIONS FOR HANDLING REFRIGERANT R 134A
• INSTRUCTIONS
• REPLACE DESICCANT INSERT FOR A/C SYSTEM
• REFRIGERANT FROM A/C SYSTEM
• EXPANSION VALVE
• AIR DUCTS
• CONTROLLER FOR HEATER/AIR CONDITIONER FAN
• FAN
• FUEL PUMP
• UPPER SECTION OF MICROFILTER HOUSING
• MICROFILTER FOR INTERIOR VENTILATION
• UPPER SECTION OF MICROFILTER HOUSING
• WITH NOTES AND INSTRUCTIONS ON HANDLING CLEANING AGENTS
• 6431074 REMOVING AND INSTALLING/REPLACING RIGHT UPPER MICROFILTER HOUSING SECTION
• NOTES ON REPLACING COMPRESSOR
• LOWER SECTION OF MICROFILTER HOUSING
• INSTRUCTIONS FOR REPLACEMENT OF AIR CONDITIONING CAPACITORS AND RADIATOR/COOLERS
• INSTRUCTIONS ON REPLACING DESICCANT INSERT
• CAPACITOR
• SAFETY PRESSURE SWITCH
• LEAK DETECTION