Scheme 2
64 11 206 Removing and installing/replacing heater
| WARNING | Risk of injury! Refrigerant circuit is under high pressure! Avoid contact with refrigerant and refrigerant oil. Follow safety instructions for handling R 134a refrigerant . Follow safety instructions for handling refrigerant oil . Follow instructions for working on cooling system . See 17 00 ... INSTRUCTIONS FOR WORKING ON COOLING SYSTEM . |
| IMPORTANT | Risk of damage! Restart engine only when A/C system has been correctly filled. Follow instructions for opening and replacing parts in refrigerant circuit. If A/C system is opened for more than 24 hours: Replacing drier insert for A/C system |
Necessary preliminary tasks
- Draw off «refrigerant from A/C system»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e9293__64-50-009-drawing-off-evacuating)
- Remove intake air manifold . See «11 61 050 REMOVING AND INSTALLING AIR INTAKE MANIFOLD (S65)»(/bmw/m3/e90-2007-2013/remont/mechanical/#engine-repair-e9293__11-61-050-removing-and-installing) .
- Remove secondary-air pump . See «11 72 000 REMOVING AND INSTALLING/REPLACING SECONDARY-AIR PUMP (S65)»(/bmw/m3/e90-2007-2013/remont/mechanical/#engine-repair-e9293__11-72-000-removing-and-installingreplacing) .
- Remove lower section of steering spindle . See «32 31 070 REMOVING AND INSTALLING / REPLACING LOWER SECTION OF STEERING SPINDLE»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-repair-e92e93__32-31-070-removing-and-installing) .
- Remove right suspension cross-brace . See «51 71 345 REMOVING AND INSTALLING/REPLACING LEFT (OR RIGHT) SUSPENSION CROSS-BRACE»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e9293-m3__51-71-345-removing-and-installingreplacing) .
- Remove «expansion valve»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e9293__64-51-525-removing-and-installing)
- Remove instrument panel trim . See «51 45 030 REMOVING AND INSTALLING INSTRUMENT PANEL TRIM»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e9293-m3__51-45-030-removing-and-installing) .
- Remove complete steering column . See «32 31 090 REMOVING AND INSTALLING/REPLACING STEERING COLUMN»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-repair-e92e93__32-31-090-removing-and-installingreplacing) .
- Remove «air ducts»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e9293__64-22-removing-air-ducts) .
- Remove carrier for instrument panel . See «51 45 ... REMOVING AND INSTALLING CARRIER FOR INSTRUMENT PANEL»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e9293-m3__51-45-removing-and-installing) .
Release cap (1) on bulkhead and release screw underneath.
Tightening torque 64 11 1AZ , see HEATER WITH OPERATION .
Scheme 3
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.
| IMPORTANT | Carefully blow through aluminum double pipe to remove remaining coolant from heat exchanger for heating system. |
Scheme 4
| IMPORTANT | Protect working area (1) against escaping coolant. |
Remove heater (2) with a 2nd person helping from vehicle.
Scheme 5
Installation
Make sure heater is correctly seated.
Make sure condensate drain (2) is correctly seated in grommet (1).
Scheme 6
After installation
- Vent cooling system and check for water leaks . See «17 00 009 CHECKING COOLING SYSTEM FOR LEAKS (S65)»(/bmw/m3/e90-2007-2013/remont/cooling-system-mechanical/#cooling-system-repair-e9293__17-00-009-checking-cooling-system) .
- «Evacuate and fill A/C system»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e9293__64-50-009-drawing-off-evacuating)
64 11 208 Replacing heater core
| IMPORTANT | Determine manufacturer of installed heater (Denso or Behr) before ordering spare parts! Remove trim panel for pedal assembly . See 51 45 185 REMOVING AND INSTALLING/REPLACING PANEL FOR PEDALS . |
Scheme 7
Necessary preliminary tasks
- Remove heater/air conditioner
Release screws (1).
Slide rubber grommet (1) with foam seal forward slightly.
Carefully feed pipe holder (3) with pipes (4) past rubber grommet (2).
Installation
If necessary, replace rubber grommet (1) and/or foam seal.
Make sure rubber grommet (1) is correctly seated on pipe holder (3).
Scheme 8
If necessary, remove coolant hose (2).
Release screws (3) and remove cover.
Note. Diesel version only: Unfasten plug connection (1) and disconnect. Withdraw electric auxiliary heater (4) in direction of arrow.
Remove heater (5) from heater/air conditioner (6).
Scheme 9
Release screws (1) and slide screw clamps (2) forwards slightly.
Remove pipes (3) from heater core (4).
Installation
Replace sealing rings.
Coat sealing rings with antiseize agent.
Make sure sealing rings are correctly seated.
Scheme 10
| IMPORTANT | Inflow connection (3) may only be positioned at the bottom. When installing, make sure that the return-flow connection (2) (larger opening) marked with a black dot (1) is positioned at the top. Inflow connection (3) accordingly may only be positioned at the bottom. |
Scheme 11
64 11 212 Removing and installing/replacing heater/air conditioner fan
Necessary preliminary tasks
- Remove trim for instrument panel , bottom right. See «51 45 181 REMOVING AND INSTALLING/REPLACING BOTTOM RIGHT TRIM FOR INSTRUMENT PANEL»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e9293-m3__51-45-181-removing-and-installingreplacing) .
- Partially release air duct at side
Disconnect plug connection (1).
Scheme 12
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 13
Replacement
64 11 224 Replacing controller for heater/air conditioner fan
Necessary preliminary tasks
- Remove «fan»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e9293__64-11-212-removing-and-installingreplacing) for heater/air conditioner
Disconnect plug connection (1).
Release screws (2) and remove controller.
Scheme 14
64 11 262 Removing and installing/replacing auxiliary water pump (S65)
| WARNING | Danger of scalding! Only perform this work after engine has cooled down. Follow instructions for working on cooling system . See 17 00 ... INSTRUCTIONS FOR WORKING ON COOLING SYSTEM . |
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
- Remove suction filter housing . See «13 71 000 REMOVING AND INSTALLING/REPLACING INTAKE FILTER HOUSING (S65)»(/bmw/m3/e90-2007-2013/remont/fuel-system/#fuel-system-repair-e9293__13-71-000-removing-and-installingreplacing) .
Disconnect plug connection (1) and remove auxiliary water pump (2) towards top.
Scheme 15
Installation
Observe direction of flow.
Mark position of water hoses (1) prior to removal.
Disconnect water hoses (1) and remove auxiliary water pump (2).
Scheme 16
Installation
Install auxiliary water pump (1) in front engine bracket so that rubber mounts (2) slide exactly in associated locators (3).
Scheme 17
After installation
Fill and vent cooling system and check for leaks . See 17 00 009 CHECKING COOLING SYSTEM FOR LEAKS (S65) .
64 11 377 Removing and installing/replacing heater/air conditioner operator unit (version without CCC/ASK)
Special tools required
- 00 9 340
| IMPORTANT | Read and comply with notes on protection against electrostatic damage (ESD protection) ! See 61 35 ... NOTES ON ESD PROTECTION (ELECTRO STATIC DISCHARGE) . |
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.
Disconnect associated plug connections.
Remove heater/air conditioner operator unit (1) complete with center console switch cluster (2) and trim (3).
Scheme 18
Replacement
Carefully unclip operator unit trim (1) at inner retaining points (2) only.
| IMPORTANT | Risk of damage to operator unit (3)! |
Scheme 19
Carefully unclip operator unit trim (1) at outer retaining points (2) only.
Remove trim (1) from operator unit (3).
Scheme 20
Replacement
Carry out programming/coding using scan tool.
64 11 378 Removing and installing/replacing heater/air conditioner operator unit (version with CCC/ASK)
Special tools required
- 00 9 340
| IMPORTANT | Read and comply with notes on protection against electrostatic damage (ESD protection) ! See 61 35 ... NOTES ON ESD PROTECTION (ELECTRO STATIC DISCHARGE) . |
Car Communication Computer (CCC)
Audio System Kontroller / Controller (ASK)
Necessary preliminary tasks
- Remove right decorative trim on instrument panel . See «51 45 181 REMOVING AND INSTALLING/REPLACING BOTTOM RIGHT TRIM FOR INSTRUMENT PANEL»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e9293-m3__51-45-181-removing-and-installingreplacing) .
Note. Unclip the heater/air conditioner operator unit (2) by simultaneously
- levering out using special tool 00 9 340
- pulling on the relevant control button (3).
Fit special tool 00 9 340 on either side as illustrated.
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).
Scheme 21
Replacement
Carefully unclip operator unit trim (1) at inner retaining points (2) only.
| IMPORTANT | Risk of damage to operator unit! |
Scheme 22
Carefully unclip operator unit trim (1) at outer retaining points (2) only.
Remove trim (1) from operator unit (3).
| IMPORTANT | Risk of damage to operator unit (3)! |
Scheme 23
Replacement
Carry out programming/coding .
64 11 806 Removing and installing/replacing servodrive for fresh-/recirculated-air flap
| IMPORTANT | Servomotors must be re-addressed in the event of replacement! Addressing can only be carried out with the BMW diagnosis system. Service functions: Body Heating and A/C function Flap motors Re-address flap motors |
Necessary preliminary tasks
- Remove right glovebox with housing . See «51 16 366 REMOVING AND INSTALLING RIGHT GLOVEBOX WITH HOUSING»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e9293-m3__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.
Installation
Place servodrive for fresh-/recirculated-air flap (3) exactly on associated gear teeth.
Scheme 24
64 11 829 Replacing servodrive for ventilation flaps (automatic A/C)
| IMPORTANT | Servomotors must be re-addressed in the event of replacement! Addressing can only be carried out with the BMW diagnosis system. Service functions: Body Heating and A/C function Flap motors Re-address flap motors |
Necessary preliminary tasks
- Remove right glovebox with housing . See «51 16 366 REMOVING AND INSTALLING RIGHT GLOVEBOX WITH HOUSING»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e9293-m3__51-16-366-removing-and-installing) .
Unfasten plug connection (1) and disconnect.
Release 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 25
64 11 839 Replacing servodrive for footwell flap (automatic A/C)
| IMPORTANT | Servomotors must be re-addressed in the event of replacement! Addressing can only be carried out with the BMW diagnosis system. Service functions: Body Heating and A/C function Flap motors Re-address flap motors |
Necessary preliminary tasks
- Remove right glovebox with housing . See «51 16 366 REMOVING AND INSTALLING RIGHT GLOVEBOX WITH HOUSING»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e9293-m3__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 26
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 27
Release screws (1).
Remove servodrive for footwell flap (2) from bracket (3).
Installation
Place servodrive for footwell flap (2) over guide pin (4).
Scheme 28
64 11 850 Replacing servodrive for rear compartment flap
| IMPORTANT | Servomotors must be re-addressed in the event of replacement! Addressing can only be carried out with the BMW diagnosis system. Service functions: Body Heating and A/C function Flap motors Re-address flap motors |
Necessary preliminary tasks
- Remove trim for instrument panel , bottom right. See «51 45 181 REMOVING AND INSTALLING/REPLACING BOTTOM RIGHT TRIM FOR INSTRUMENT PANEL»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e9293-m3__51-45-181-removing-and-installingreplacing) .
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 29
64 11 856 Removing and installing / replacing servodrive for central kinematics (A / C control)
| IMPORTANT | Servomotors must be re-addressed in the event of replacement! Addressing can only be carried out with the BMW diagnosis system. Service functions: Body Heating and A/C function Flap motors Re-address flap motors |
Necessary preliminary tasks
- Remove right glovebox with housing . See «51 16 366 REMOVING AND INSTALLING RIGHT GLOVEBOX WITH HOUSING»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e9293-m3__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).
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 30
64 11 866 Removing and installing/replacing servodrive for blending flap (left)
| IMPORTANT | Servomotors must be re-addressed in the event of replacement! Addressing can only be carried out with the BMW diagnosis system. Service functions: Body Heating and A/C function Flap motors Re-address flap motors |
Necessary preliminary tasks
- Remove trim panel for pedal assembly . See «51 45 185 REMOVING AND INSTALLING/REPLACING PANEL FOR PEDALS»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e9293-m3__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 31
64 11 868 Removing and installing/replacing servodrive for defrosting flap (right)
| IMPORTANT | Servomotors must be re-addressed in the event of replacement! Addressing can only be carried out with the BMW diagnosis system. Service functions: Body Heating and A/C function Flap motors Re-address flap motors |
Necessary preliminary tasks
- Remove glovebox with housing . See «51 16 366 REMOVING AND INSTALLING RIGHT GLOVEBOX WITH HOUSING»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e9293-m3__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 11 869 Replacing servodrive for blending flap
| IMPORTANT | Servomotors must be re-addressed in the event of replacement! Addressing can only be carried out with the BMW diagnosis system. Service functions: Body Heating and A/C function Flap motors Re-address flap motors |
Necessary preliminary tasks
- Remove trim panel for pedal assembly . See «51 45 185 REMOVING AND INSTALLING/REPLACING PANEL FOR PEDALS»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e9293-m3__51-45-185-removing-and-installingreplacing) .
Unfasten plug connection (1) and disconnect.
Release screws (2).
Detach servodrive for blending flap (3) in direction of arrow from heater/air conditioner (4).
Installation
Place servodrive for blending flap (3) over guide pin (5).
Scheme 32
64 11 871 Removing and installing/replacing servodrive for blending flap (left)
| IMPORTANT | Servomotors must be re-addressed in the event of replacement! Addressing can only be carried out with the BMW diagnosis system. Service functions: Body Heating and A/C function Flap motors Re-address flap motors |
Necessary preliminary tasks
- Remove trim for instrument panel at bottom left. See «51 45 185 REMOVING AND INSTALLING/REPLACING PANEL FOR PEDALS»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e9293-m3__51-45-185-removing-and-installingreplacing) .
- E90/E91/E92/E93: Remove panel for pedal assembly . See «51 45 185 REMOVING AND INSTALLING/REPLACING PANEL FOR PEDALS»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e9293-m3__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 33
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 34
Unfasten plug connection (1) and disconnect.
Release screws (2).
Detach servodrive for blending flap (3) in direction of arrow from heater/air conditioner (4).
Installation
Place servodrive for blending flap (3) over guide pin (5).
Scheme 35
64 11 872 Removing and installing/replacing servodrive for blending flap (right, automatic A/C)
| IMPORTANT | Servomotors must be re-addressed in the event of replacement! Addressing can only be carried out with the BMW diagnosis system. Service functions: Body Heating and A/C function Flap motors Re-address flap motors |
Necessary preliminary tasks
- Remove right glovebox with housing . See «51 16 366 REMOVING AND INSTALLING RIGHT GLOVEBOX WITH HOUSING»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e9293-m3__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).
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.
Release screws (2).
Detach servodrive for blending flap (3) in direction of arrow from heater/air conditioner (4).
Installation
Place servodrive for blending flap (3) over guide pin (5).
Scheme 36
64 11 905 Removing and installing/replacing ventilation temperature sensor
Necessary preliminary tasks
- Remove decorative strip on instrument panel on right. See «51 45 380 REMOVING AND INSTALLING (REPLACING) RIGHT DECORATIVE STRIP ON INSTRUMENT PANEL»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e9293-m3__51-45-380-removing-and-installing) .
Note. For purposes of clarity, the following graphics show the heater/air conditioner removed.
Pull temperature sensor (1) out of retaining lug (2).
Installation
Make sure rubber ring is correctly seated.
Scheme 37
Disconnect plug connection (1) and remove temperature sensor (2).
Scheme 38
64 11 908 Removing and installing/replacing footwell temperature sensor
Necessary preliminary tasks
- Remove trim panel for pedal assembly . See «51 45 185 REMOVING AND INSTALLING/REPLACING PANEL FOR PEDALS»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e9293-m3__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 39
64 11 942 Replacing evaporator temperature sensor
Necessary preliminary tasks
- Remove lower instrument panel trim . See «51 45 181 REMOVING AND INSTALLING/REPLACING BOTTOM RIGHT TRIM FOR INSTRUMENT PANEL»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e9293-m3__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 40
64 11 970 Replacing fogging sensor
Special tools required
- 00 9 317
| WARNING | Make sure rooms are well ventilated when working with adhesive remover indoors. |
| IMPORTANT | Do not under any circumstances use paint thinner to clean the bonding surface. |
Expand two-part mirror base cover (1) by pressing from below and detach.
Feed out two-part mirror base cover (1) and remove.
Scheme 41
Disconnect plug connection (1).
Note. If necessary, carefully heat fogging sensor (2) with a hot air blower to approx. 40-60°C.
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.
Scheme 42
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 .
Remove mounting template (1) carefully from fogging sensor (3).
Scheme 43
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 44
64 11 992 Removing and installing/replacing solar sensor
Special tools required
- 00 9 340
Lever out solar sensor (1) with special tool 00 9 340 in direction of arrow.
Note. Secure disconnected wiring harness of solar sensor (1) against falling out below instrument panel trim (2).
Disconnect associated plug connection and remove solar sensor (1) from instrument panel trim (2).
Scheme 45
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
- Close all vehicle doors
- Within 5 seconds: Switch ignition lock from terminal "0" to terminal "R" and then back to terminal "0"
- Within 5 seconds: Press OFF button (1) on hand transmitter and with OFF button (1) held down press ON button (2) three times quickly
- Release both buttons. LED (3) on hand transmitter flashes
Scheme 46
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 ... Initializing Telestart hand transmitter (T93) (from 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
- Close all doors on vehicle (vehicle must be unlocked!)
- 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.)
- Within 5 seconds: Simultaneously press both buttons (1, 2) on hand transmitter until LED (3) lights up orange.
- Release both buttons. Briefly press ON button (1) three times within 10 seconds; LED (3) flashes orange as confirmation.
Scheme 47
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 12 089 Removing and installing or replacing muffler/silencer
| WARNING | Scalding hazard! Work on independent heating may only be carried out when it has cooled down. |
Necessary preliminary tasks
- Remove front bumper trim
Release screws (1, 2) and remove muffler/silencer (3).
Tightening torque 64 12 1AZ , see AUXILIARY HEATER .
Scheme 48
64 12 120 Removing and installing/replacing intake muffler for independent/auxiliary heater
| WARNING | Scalding hazard! Work on independent heating may only be carried out when it has cooled down. |
Necessary preliminary tasks
- Remove front bumper trim
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 49
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 22 137 Removing and installing/replacing left fresh-air grill
This operation is described in
- Removing decorative strip on instrument panel on left (replacement) . See «51 45 370 REMOVING AND INSTALLING (REPLACING) LEFT DECORATIVE STRIP ON INSTRUMENT PANEL»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e9293-m3__51-45-370-removing-and-installing) .
64 22 138 Removing and installing/replacing right fresh-air grill
Necessary preliminary tasks
- Remove decorative strip on instrument panel on right . See «51 45 380 REMOVING AND INSTALLING (REPLACING) RIGHT DECORATIVE STRIP ON INSTRUMENT PANEL»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e9293-m3__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 50
64 22 162 Removing and installing/replacing center fresh-air grill
Necessary preliminary tasks
- Remove decorative strip on instrument panel on right . See «51 45 380 REMOVING AND INSTALLING (REPLACING) RIGHT DECORATIVE STRIP ON INSTRUMENT PANEL»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e9293-m3__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 51
64 22 191 Removing and installing/replacing rear compartment fresh-air grille
Special tools required
- 00 9 341
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 52
64 31 010 Replacing Microfilter For Interior Ventilation
Important! Risk of damage! A/C system must not be operated without the prescribed filter element.
Note on cleaning: Spray microfilter housing from inside with BMW pollen filter housing cleaner. 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).
Remove sealing lips at marked points. Unclip line and water hose (1) from cover (3). Release retaining lug (2). Feed out cover (3).
Scheme 53
Cover tabs (1) must snap in correctly under cowl panel.
Scheme 54
Remove filter cover (1) in direction of arrow.
Scheme 55
Remove upper microfilter (1) in direction of arrow.
Scheme 56
Unclip filter frame (1) at the marked points and detach. Remove lower microfilter (2) in direction of arrow.
Scheme 57
Installation note: Make sure upper microfilter (1) and lower microfilter (2) are installed in the correct position. The arrows mark the direction of the air intake.
Scheme 58
64 31 011 Replacing microfilter for interior ventilation
| IMPORTANT | Risk of damage! A/C system must not be operated without the prescribed filter element. Follow manufacturer's instructions. |
Note on cleaning
Spray microfilter housing from inside with BMW pollen filter housing cleaner (BMW part number: 0 447 913).
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.
Necessary preliminary tasks
- Remove upper microfilter housing section on «left»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e9293__64-31-072-removing-and-installingreplacing) and «right»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e9293__64-31-074-removing-and-installingreplacing) .
Unclip microfilter (1) with suitable tool and remove.
Installation
Reset Condition Based Service display according to factory specification.
Scheme 59
64 31 062 Removing and installing/replacing left lower microfilter housing section
Necessary preliminary tasks
- Remove «upper section of microfilter housing»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e9293__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 60
Installation
Retaining lugs (1) must be correctly inserted in cowl panel (2).
Scheme 61
64 31 063 Removing and installing/replacing right lower microfilter housing section
Necessary preliminary tasks
- Remove «right upper microfilter housing section»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e9293__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 62
Installation
Retaining lugs (1) must be correctly inserted in cowl panel (2).
Scheme 63
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 64
Replacement
- Modify hood/bonnet contact switch . See «61 31 241 REMOVING AND INSTALLING/REPLACING RIGHT HOOD/BONNET CONTACT SWITCH (M3)»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#general-electrical-system-repair-e9293__61-31-241-removing-and-installingreplacing) .
- Modify «microfilter for interior ventilation»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e9293__64-31-011-replacing-microfilter-for) .
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 65
Replacement
Replace microfilter for interior ventilation .
64 50 ... Air conditioner test (R 134a)
Before A/C efficiency test, satisfy following conditions
- Provide a MoDiC or DIS. Safeguard electrical system integrity by checking the fault memory (no faults in the fault memory).
- Provide a thermometer with separate gauge.
- Perform the test in a suitable work bay with an ambient temperature between 20°C and 30°C.
Re 1
Connect MoDiC or DIS to car 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 vehicle interior
- A/C button is not activated during heating up.
- Close all windows and doors.
- Set recirculated air mode.
- Select air distribution mode for footwell and defrosting.
- Maximum temperature setting.
- Maximum fan stage.
- Run engine at approx. 2000 RPM until operating temperature is reached, then idle speed.
A/C efficiency test
Turn on A/C compressor at a vehicle interior temperature of 50°C.
After 3-4 minutes, the evaporator sensor temperature must be > or = 15°C.
Draw off A/C system 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. A/C systems with uncontrolled compressors only: If necessary, then continue troubleshooting by pressure measurement .
64 50 ... Instructions for handling refrigerant R 134a
| WARNING | Although R 134a at normal temperature is non-toxic, non-flammable and not explosive in air in any mixture ratio, it is still essential to follow various safety precautions. |
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 filled A/C systems or in rooms into which R 134a may have leaked. Exposure to flames or high temperatures (> or = 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 gets into the atmosphere, this may result especially in workshop pits in an imperceptible danger of asphyxiation or in cardiac palpitations. 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), extinguishant powder and a sprayed water jet are deemed to be suitable extinguishants. Cool reservoirs at risk with a sprayed water jet (risk of bursting!).
| IMPORTANT | After each refill of an A/C system, check that protective caps of filling valves are hand-tight. They serve as additional seals. |
64 50 ... Instructions for handling refrigerant oil (for refrigerant R 134a)
| WARNING | Observe the following points when handling refrigerant oil: Wear protective goggles. Wear gloves made from impermeable plastic. Do not swallow. Do not inhale. Action to be taken after contact with refrigerant oil: After contact with eyes, rinse thoroughly with plenty of water and take out contact lenses (if worn). Then seek immediate medical attention. After contact with the skin, wash body parts affected with plenty of soap and water. Do not induce vomiting if oil is swallowed, seek immediate medical attention. If inhaled, introduce the person affected to fresh air. Seek medical attention if problems persist. |
| WARNING | Refrigerant oil is non-combustible and non-explosive at normal temperatures. In spite of this, the following precautions must be observed: Do not store in the vicinity of flames, heat sources or strongly oxidizing materials. Suitable extinguishants: carbon dioxide (CO2), dry extinguishant, foam. |
| IMPORTANT | Refrigerant oil is hygroscopic and must therefore be stored in suitable containers that are sealed airtight! |
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 above-ground water supplies, drainage systems or subsoil.
64 50 ... Leak testing with ultraviolet additives (UV additives) (BMW leak-testing case)
| IMPORTANT | It is absolutely essential to read and comply with the equipment manufacturer's instructions for use provided in the equipment case! Read and comply with the instructions for use provided with the special tool particularly with regard to accident prevention, health protection and environmental protection. Use only BMW-approved UV-additives (e.g. TRACER). Only the basic procedure is described in the following! |
| WARNING | Avoid contact with refrigerant. Follow safety precautions when handling refrigerant . |
| IMPORTANT | UV lamp gets very hot in the radiation area! Do not use the UV lamp without the filter glass. Eyes and skin will suffer damage if the UV lamp is used without the filter glass. When using the UV lamp, wear the protective goggles provided in the case. |
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 oils Do not operate the A/C system while the hand pump is connected or in use The A/C system must always be filled with an adequate amount of refrigerant to enable the leak-detecting agent to be properly distributed
Necessary preliminary tasks
Before actually testing for leaks, check the entire refrigerant circuit using the UV leak-detecting lamp to ensure that no AV 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 66
On initial use
Attach vent valve (1) to quick-connect 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.
| IMPORTANT | The entire hand pump with hose system must not be disassembled again once the filling work has been completed. |
Scheme 67
Attach quick-connect coupling (1) to low-pressure connection (2) of A/C system.
Turn handle on hand pump (3) until the required amount of UV additive is added.
The quantity of UV additive to be added is dependent on the amount of refrigerant in the refrigerant circuit
- A/C systems with refrigerant filling up to 900 g: one graduation mark (4) on additive cartridge
- A/C systems with refrigerant filling in excess of 900 g: two graduation marks (4) on additive cartridge
Scheme 68
Note. After filling, remove quick-connect coupling (1) and if necessary use the cleaning agent contained in the special tool case to clean up the UV additive.
Further tasks
- Start engine.
- Run A/C system at highest setting for 5-10 minutes in order to ensure adequate distribution of dye in the system
- Switch off engine
- Check all A/C system components for possible leaks
- 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 69
64 50 ... Safety instructions for handling refrigerant R134a
| WARNING | Risk of injury! Refrigerant circuit is under high pressure! Work on the refrigerant circuit may only be carried out by experts! Draw off refrigerant without fail BEFORE all repair work on the refrigerant circuit. The refrigerant circuit is depressurized AFTER drawing off! It is absolutely essential to read and observe the relevant operating instructions for the A/C service unit used! |
Protective measures/rules of conduct
- Wear protective goggles
- Wear oil-resistant protective gloves
- Do not smoke!
- Observe country-specific safety regulations.
First aid measures
- Eye contact: In the event of contact with the eyes, rinse immediately with plenty of running water and consult an opthalmologist.
- Skin contact: In the event of contact with skin, remove affected clothing immediately and rinse with plenty of water.
- 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
| WARNING | Risk of injury! Refrigerant circuit is under high pressure! Work on the refrigerant circuit may only be carried out by experts! Draw off refrigerant without fail BEFORE all repair work on the refrigerant circuit. The refrigerant circuit is depressurized AFTER drawing off! It is absolutely essential to read and observe the relevant operating instructions for the A/C service unit used! |
Protective measures/rules of conduct
- Wear protective goggles
- Wear oil-resistant protective gloves
- Do not smoke!
- Observe country-specific safety regulations.
First aid measures
- 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).
- 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 .
- 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.
- 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 50 009 Drawing off, evacuating and filling A/C system (R 134a)
| WARNING | Refrigerant circuit is under high pressure! Repair work may only be carried out on a DEPRESSURIZED refrigerant circuit! Avoid contact with refrigerant and refrigerant oil. Follow safety instructions for handling refrigerant R 134a . Follow safety instructions for handling refrigerant oil . |
| IMPORTANT | Risk of damage! Only BMW-approved R134a refrigerant may be used. Restart engine only when A/C system has been correctly filled. |
Note. Draw off, evacuate and fill the A/C system in accordance with the operating instructions of the relevant service station. E60 only: If necessary, to connect service station, use manufacturer's adapter for high-pressure connection (red).
Instructions for drawing off A/C system
To help separation of refrigerant and refrigerant oil, run engine at low speed (800-1200 RPM) and with A/C system turned on for a few minutes.
The limits the entrainment of refrigerant oil while it is drawn off.
Drawn-off refrigerant oil must be changed and reintroduced via the service station.
If at the end of the drawing-off procedure the service station moisture indicator shows that the drawn-off refrigerant is excessively moist, clean the refrigerant in accordance with the service station operating instructions.
Recycling
Dispose of drawn-off refrigerant oil as hazardous waste.
Observe country-specific waste-disposal regulations.
Instructions for evacuating off A/C system
The evacuation procedure removes all traces of ambient air, water vapor and any other gases present from the A/C system. This enables subsequent system filling with refrigerant.
A decrease in the vacuum level indicates a leak in the refrigerant circuit .
Instructions for filling A/C system
Before filling with refrigerant, top up the refrigerant oil entrained during drawing off.
Follow instructions for opening and replacing parts in refrigerant circuit!
Depending on the type of component replaced on the A/C system, it may be necessary to top up the refrigerant oil, even if no measurable losses have occurred during drawing off. Read and comply with the A/C system manufacturer's notes in this regard and the operating instructions of the relevant service station.
Scheme 70
Information on the required refrigerant fill quantity for the entire A/C system is contained on the rating plate (1) in the engine compartment.
If necessary, refer to HEATING AND AIR CONDITIONING - TECHNICAL DATA fill quantities .
Installation
Reseal refrigerant filler necks on vehicle with sealing caps.
64 51 ... Leak-testing condenser
Special tools required
- 64 5 121
- 64 5 122
- 64 5 123
| WARNING | Risk of injury! Refrigerant circuit is under high pressure! Follow safety instructions for handling refrigerant Comply with the standard national safety instructions and precautions on handling nitrogen. Ensure that employees are advised of how to handle pressurized vessels and nitrogen correctly (danger of asphyxiation). For this purpose, follow the notes and instructions in the technical safety specifications available from the gas supplier. |
Necessary preliminary tasks
- Drain off «air conditioner»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e9293__64-50-009-drawing-off-evacuating)
- Detach refrigerant lines from condenser Tightening torque 64 53 6AZ , see «64 53 REFRIGERANT LINES AND EXPANSION VALVE»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-tightening-torques-e9293) .
| IMPORTANT | Risk of damage! Special tool 64 5 122 and special tool 64 5 123 have different diameters (A, B) at the seal plugs! Ensure correct connection assignment on condenser. |
Replace sealing rings (1) prior to each use.
Scheme 71
Fit and secure sealing adapter 64 5 123 to connection of low-pressure line.
Fit and secure test adapter 64 5 122 to connection of low-pressure line.
Tightening torque 64 53 6AZ , see 64 53 REFRIGERANT LINES AND EXPANSION VALVE .
Scheme 72
Connect special tool 64 5 122 to special tool 64 5 121 .
Scheme 73
| IMPORTANT | Risk of damage: Use only nitrogen pressure bottles with pressure reducers for leak-testing. Pressurize condenser to 10 bar slowly only. Excessively fast pressurization and pressures in excess of 20 bar may cause damage to the condenser. |
Connect nitrogen pressure bottle with pressure reducer to pressure gauge and then connect to special tool 64 5 121 (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.
| WARNING | After leak-testing, unscrew special tool 64 5 121 slowly from special tool 64 5 122 to reduce pressure. |
After leak-testing
- Replace all sealing rings and moisten with refrigerant oil
- Assemble A/C system
- «Evacuate and fill A/C system»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e9293__64-50-009-drawing-off-evacuating)
64 51 ... Leak-testing evaporator
Special tools required
- 64 5 121
- 64 5 124
| WARNING | It is essential, when handling nitrogen, to observe the standard national safety regulations. Ensure that employees are advised of how to handle pressurized vessels and nitrogen correctly (danger of asphyxiation). For this purpose, follow the notes and instructions in the technical safety specifications available from the gas supplier. |
Necessary preliminary tasks
- Remove «expansion valve»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e9293__64-51-525-removing-and-installing)
Replace sealing rings (1) and coat with refrigerant oil
Scheme 74
Screw down special tool 64 5 124 with retaining clip (1).
Tightening torque 64 53 13AZ , see 64 53 REFRIGERANT LINES AND EXPANSION VALVE .
Scheme 75
Connect special tool 64 5 124 to special tool 64 5 121 .
Scheme 76
| IMPORTANT | Risk of damage: Use only nitrogen pressure bottles with pressure reducers for leak-testing. Pressurize evaporator to 10 bar slowly only. Excessively fast pressurization and pressures in excess of 20 bar may cause damage to the evaporator. |
Connect nitrogen pressure bottle with pressure reducer to pressure gauge and then connect to special tool 64 5 121 (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.
| WARNING | After leak-testing, unscrew special tool 64 5 121 slowly from special tool 64 5 124 to reduce pressure. |
After leak-testing
- Replace all sealing rings and moisten with refrigerant oil
64 51 001 Cleaning evaporator
Special tools required
- 64 1 260
- 64 1 270
| WARNING | When handling cleaning agent, observe following protection measures: Wear protective rubber gloves and protective goggles. If cleaning agent comes into contact with eyes or skin, wash immediately with lots of water. |
| IMPORTANT | To avoid dirtying vehicle interior: Close all air vents. Switch heating - A/C system to recirculated-air mode. Cover carpet in work area. |
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
- Remove rear underbody protection . See «51 47 491 REMOVING AND INSTALLING/REPLACING REAR UNDERBODY PROTECTION»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e9293-m3__51-47-491-removing-and-installingreplacing) .
- Remove «heater/air conditioner fan»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e9293__64-11-212-removing-and-installingreplacing) .
| IMPORTANT | Use special tool 64 1 270 on right hand drive models. |
Connect special tool 64 1 260 (spray lance) to spray gun (2).
Insert spray lance 64 1 260 through opening (1) into fresh air duct.
By moving spray lance (1) back and forth, spray a uniform amount of cleaning agent onto evaporator.
Scheme 77
Spray lance 64 1 260 shown on removed and cut-open heater/air conditioner
- Spray lance 64 1 260 in upper end position (1)
- Spray lance 64 1 260 in lower end position (2)
By moving spray lance back and forth, spray a uniform amount of cleaning agent onto evaporator.
Scheme 78
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.
64 51 525 Removing and installing or replacing expansion valve
| WARNING | Risk of injury! Refrigerant circuit is under high pressure! Follow safety instructions for handling R134a refrigerant . Avoid contact with refrigerant and refrigerant oil. Follow safety instructions for handling refrigerant oil . |
| IMPORTANT | Risk of damage! Restart engine only when A/C system has been correctly filled. 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 |
Necessary preliminary tasks
- Drawing off, evacuating and filling the A/C system are not included in the time value given for this work operation
- Remove «lower section of microfilter housing»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e9293__64-31-062-removing-and-installingreplacing)
- Remove left suspension cross-brace . See «51 71 345 REMOVING AND INSTALLING/REPLACING LEFT (OR RIGHT) SUSPENSION CROSS-BRACE»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e9293-m3__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.
Installation
Replace all sealing rings and moisten with refrigerant oil.
Tightening torque 64 53 2AZ , see 64 53 REFRIGERANT LINES AND EXPANSION VALVE .
Scheme 79
Release screws (1) and remove expansion valve (2).
Installation
Replace all sealing rings and moisten with refrigerant oil.
Tightening torque 64 53 13AZ , see 64 53 REFRIGERANT LINES AND EXPANSION VALVE .
Scheme 80
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 81
After installation
- «Evacuate and fill A/C system»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e9293__64-50-009-drawing-off-evacuating)
64 52 ... Instructions for compressor replacement
| IMPORTANT | Compressors with plastic belt pulleys: Avoid impacts/knocks to plastic belt pulley (caused by tools, contact with base). Return faulty compressors in their original packaging only. |
| IMPORTANT | When starting up a new compressor for the first time, it is absolutely essential to carry out the following breaking-in procedure: Switch on A/C system Set all air vents in instrument cluster to "OPEN" Start engine and let it stabilize at idle speed Set blower output to min. 75 % of max. blower output Switch on A/C system and run for at least 2 minutes at idle speed (risk of damage at higher speed!) |
When evacuating the air-conditioning system, refrigerant oil is also extracted and collected in the oil separator of the service station.
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 oil remains in the oil separator. Measure and note down this quantity of refrigerant oil
refer to EVACUATING A/C SYSTEM .
Scheme 82
Transfer the refrigerant oil remaining in the previous compressor via the filler plug completely into a measuring container.
Scheme 83
Measure the amount of refrigerant oil collected from the previous compressor.
Scheme 84
The new compressor is filled at the factory with refrigerant oil. Open filler plug and pour entire contents of compressor into a clean container.
Installation
Replace sealing ring and moisten with refrigerant oil.
Observe tightening torque, 64 52 2AZ , see COMPRESSOR .
From the new compressor, pour the same amount of refrigerant oil (as drained from the previous compressor) + 10 g extra into a clean measuring container and pour again into the new compressor.
Remaining refrigerant oil can be poured into service station tank
refer to EVACUATING A/C SYSTEM .
Otherwise the excess refrigerant oil must be disposed of correctly.
On account of its hygroscopic properties, refrigerant oil must not be stored in open containers.
Scheme 85
The refrigerant oil 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.
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 oil into the system again
refer to EVACUATING A/C SYSTEM .
Installation
If A/C system is opened for more than 24 hours: Replace drier bottle/drier insert .
64 52 ... Instructions for opening and replacing parts in refrigerant circuit
| WARNING | Avoid contact with refrigerant and refrigerant oil Follow safety instructions for handling R134a refrigerant Follow safety instructions for handling refrigerant oil |
| CAUTION | Always use new O-rings each time A/C connections are opened. Moisten O-rings with refrigerant oil prior to fitting Seal all parts to be returned at openings to prevent ingress of moisture or foreign bodies |
- Opening refrigerant circuit without part replacement, as preliminary work to further work (e.g. engine removal): Work sequence: Draw off A/C system, then determine drawn-off refrigerant oil quantity Carry out main work Replace removed refrigerant oil with new refrigerant oil Evacuate and fill «A/C system»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e9293__64-50-009-drawing-off-evacuating)
- Part replacement and part replacement on account of insidious leak (minor leak, e.g. hairline crack) Work sequence: Draw off A/C system, then determine drawn-off refrigerant oil quantity Carry out part replacement Replace removed refrigerant oil with new refrigerant oil Additionally replenish new refrigerant oil in accordance with replaced parts: Compressor: refer to «Notes on replacing compressor»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e9293__64-52-instructions-for-compressor) Evaporator: 10 ml Condenser: 10 ml Desiccant insert / desiccant bottle: 30 ml Each replaced refrigerant line: 10 ml Condenser with integrated dryer: 30 ml Safety pressure switch and seals: no additional refrigerant oil Evacuate and fill «A/C system»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e9293__64-50-009-drawing-off-evacuating)
- Part replacement on account of sudden leak (major leak, e.g. pipe break due to accident) Work sequence: Draw off A/C system, then determine drawn-off refrigerant oil quantity Carry out part replacement Replace removed refrigerant oil with new refrigerant oil Additionally replenish 25 ml new refrigerant oil and new refrigerant oil in accordance with replaced parts: Compressor: refer to «Notes on replacing compressor»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e9293__64-52-instructions-for-compressor) Evaporator: 10 ml Condenser: 10 ml Desiccant insert / desiccant bottle: 30 ml Each replaced refrigerant line: 10 ml Condenser with integrated dryer: 30 ml Safety pressure switch and seals: no additional refrigerant oil Evacuate and fill «A/C system»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e9293__64-50-009-drawing-off-evacuating)
64 52 521 Replacing A/C system compressor (S65)
Special tools required
- 32 1 270
| WARNING | Scalding hazard! Work on the cooling system may only be carried out when it has cooled down. |
| WARNING | Risk of injury! Refrigerant circuit is under high pressure! Follow safety instructions for handling R 134a refrigerant . Avoid contact with refrigerant and refrigerant oil. Follow safety instructions for handling refrigerant oil . |
| IMPORTANT | Risk of damage! Restart engine only when A/C system has been correctly filled. Read and comply with notes on replacing compressor. 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. |
Necessary preliminary tasks
- Drawing off , evacuating and filling the A/C system is not included in the time value given for this work operation
- Remove A/C compressor drive belt
- Drain coolant from radiator. See «17 00 005 DRAINING AND ADDING COOLANT (S65)»(/bmw/m3/e90-2007-2013/remont/cooling-system-mechanical/#cooling-system-repair-e9293__17-00-005-draining-and-adding) .
- Remove coolant hose from radiator at bottom
Clamp off overflow hoses (1) and lay to one side.
Release screws (2).
Raise coolant tank (3) and disconnect associated plug connection.
Place coolant tank (3) to one side.
Scheme 86
Disconnect plug connection (1).
Release screws (2) and remove refrigerant lines.
Installation
Tightening torque 64 52 1AZ , see COMPRESSOR .
Replace all sealing rings and moisten with refrigerant oil.
Scheme 87
| IMPORTANT | Seal openings or lines on compressor with special tool 32 1 270 to prevent escape of media and fouling. |
Release screws (1, 2) and remove holder (3).
| IMPORTANT | Secure compressor (5) against falling off/down. |
Release screw (4) and feed out compressor (5) towards top.
Scheme 88
Installation
If necessary, replace damaged adapter sleeves (1).
Scheme 89
After installation
- Fill and vent cooling system. See «17 00 ... INSTRUCTIONS FOR WORKING ON COOLING SYSTEM»(/bmw/m3/e90-2007-2013/remont/cooling-system-mechanical/#cooling-system-repair-e9293__17-00-instructions-for-working) .
- «Evacuate and fill A/C system»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e9293__64-50-009-drawing-off-evacuating)
Scheme 90
64 53 ... Notes on replacing drier bottle or drier insert
The drier bottle or drier insert does not have to be replaced at regular service intervals in a functioning, leakproof A/C system.
However, the drier bottle or drier insert must be replaced without fail in the event of
- fouling of the refrigerant by filings/shavings (e.g. when the compressor is clamped)
- a leaking A/C system or loss of refrigerant
- the refrigerant circuit being opened for a period exceeding 24 hours, e.g. during repair work.
64 53 ... Replacing valve insert for refrigerant line
| WARNING | Risk of injury! Refrigerant circuit is under high pressure! Follow safety instructions for handling R 134a refrigerant . Follow safety instructions for handling refrigerant oil . Avoid contact with refrigerant and refrigerant oil. |
| IMPORTANT | Risk of damage! Restart engine only when A/C system has been correctly filled. 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
- Drawing off, evacuating and filling the A/C system 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 91
After installation
- «Evacuate and fill A/C system»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e9293__64-50-009-drawing-off-evacuating)
- Check leak-tightness of valve insert with soapy solution In event of leakage: Evacuate A/C system Check sealing faces on line and valve insert for damage, replace line or valve insert if necessary If necessary, carry out leak detection
64 53 515 Replacing desiccant insert for A/C system
| WARNING | Risk of injury! Refrigerant circuit is under high pressure! Follow safety instructions for handling R 134a refrigerant . Avoid contact with refrigerant and refrigerant oil. Follow safety instructions for handling refrigerant oil . |
| IMPORTANT | Risk of damage! Restart engine only when A/C system has been correctly filled. Read and comply with Notes on replacing compressor . 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 |
Necessary preliminary tasks
- Drawing off, evacuating and filling the A/C system are not included in the time value given for this work operation
- Remove «condenser»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e9293__64-53-550-removing-and-installing)
If necessary, pierce sticker over sealing cap (1).
Remove cap (1) from condenser (2).
Installation
Tightening torque 64 53 12AZ , see 64 53 REFRIGERANT LINES AND EXPANSION VALVE .
Scheme 92
Remove Seeger circlip ring (1) with suitable pliers.
Scheme 93
With assistance of a screwed-in screw (1), withdraw desiccant insert (2) from condenser (3).
Scheme 94
After installation
- Fill and vent cooling system and check for leaks. See «17 00 ... INSTRUCTIONS FOR WORKING ON COOLING SYSTEM»(/bmw/m3/e90-2007-2013/remont/cooling-system-mechanical/#cooling-system-repair-e9293__17-00-instructions-for-working) .
- «Evacuate and fill A/C system»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e9293__64-50-009-drawing-off-evacuating)
64 53 520 Replacing safety pressure switch
| WARNING | Risk of injury! Refrigerant circuit is under high pressure! Follow safety instructions for handling R 134a refrigerant . Avoid contact with refrigerant and refrigerant oil. Follow safety instructions for handling refrigerant oil . |
| IMPORTANT | Risk of damage! Restart engine only when A/C system has been correctly filled. Follow instructions for opening and replacing parts in refrigerant circuit! |
Note. If A/C system is opened for more than 24 hours: Replace desiccant insert for A/C system
Necessary preliminary tasks
- Drawing off, evacuating and filling the A/C system 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 , see 64 53 REFRIGERANT LINES AND EXPANSION VALVE ..
Scheme 95
After installation
- «Evacuate and fill A/C system»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e9293__64-50-009-drawing-off-evacuating)
64 53 550 Removing and installing or replacing condenser for A/C system
| WARNING | Risk of injury! Refrigerant circuit is under high pressure! Follow safety instructions for handling R 134a refrigerant . Avoid contact with refrigerant and refrigerant oil. Follow safety instructions for handling refrigerant oil . |
| IMPORTANT | Risk of damage! Restart engine only when A/C system has been correctly filled. 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 |
Necessary preliminary tasks
- Drawing off, evacuating and filling the A/C system are not included in the time value given for this work operation
- Remove radiator . See «17 11 000 REMOVING AND INSTALLING RADIATOR»(/bmw/m3/e90-2007-2013/remont/cooling-system-mechanical/#cooling-system-repair-e9293__17-11-000-removing-and-installing) .
Release screws (1).
Disconnect suction and pressure lines and lay to one side.
Installation
Replace all sealing rings and moisten with refrigerant oil.
Tightening torque 64 53 1AZ , see 64 53 REFRIGERANT LINES AND EXPANSION VALVE ..
Scheme 96
Release screw (1).
Lever out retainer (2).
Remove condenser (3) towards rear.
Installation
Make sure retaining clips are correctly seated in area (4).
Scheme 97
Installation
Make sure condenser (1) is securely seated in area (2).
Scheme 98
After installation
- «Evacuate and fill A/C system»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e9293__64-50-009-drawing-off-evacuating)
- Fill and vent cooling system and check for leaks. See «17 00 ... INSTRUCTIONS FOR WORKING ON COOLING SYSTEM»(/bmw/m3/e90-2007-2013/remont/cooling-system-mechanical/#cooling-system-repair-e9293__17-00-instructions-for-working) .
64 53 642 Replacing line from compressor to condenser (S65)
| WARNING | Risk of injury! Refrigerant circuit is under high pressure! Follow safety instructions for handling R 134a refrigerant . Avoid contact with refrigerant and refrigerant oil. Follow safety instructions for handling refrigerant oil . |
| IMPORTANT | Risk of damage! Restart engine only when A/C system has been correctly filled. 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 |
Necessary preliminary tasks
- Drawing off, evacuating and filling the A/C system are not included in the time value given for this work operation
- Release coolant tank and place to one side
Release screw (1).
Tightening torque 64 52 1AZ , see COMPRESSOR .
Release screw (2) and remove refrigerant line.
Tightening torque 64 53 6AZ , see 64 53 REFRIGERANT LINES AND EXPANSION VALVE .
Installation
Replace sealing rings and moisten with refrigerant oil.
Scheme 99
After installation
- «Evacuate and fill A/C system»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e9293__64-50-009-drawing-off-evacuating) .
64 53 660 Replacing line from condenser to evaporator (S65)
| WARNING | Risk of injury! Refrigerant circuit is under high pressure! Follow safety instructions for handling R 134a refrigerant . Avoid contact with refrigerant and refrigerant oil. Follow safety instructions for handling refrigerant oil . |
| IMPORTANT | Risk of damage! Restart engine only when A/C system has been correctly filled. 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 |
Necessary preliminary tasks
- Drawing off, evacuating and filling the A/C system are not included in the time value given for this work operation
- Remove intake filter housing . See «13 71 000 REMOVING AND INSTALLING/REPLACING INTAKE FILTER HOUSING (S65)»(/bmw/m3/e90-2007-2013/remont/fuel-system/#fuel-system-repair-e9293__13-71-000-removing-and-installingreplacing) .
- Release coolant tank and place to one side
Release screw (1) and remove refrigerant line.
Installation
Replace sealing ring and moisten with refrigerant oil.
Tightening torque 64 53 6AZ , see 64 53 REFRIGERANT LINES AND EXPANSION VALVE .
Scheme 100
Expose refrigerant line up to evaporator connection.
Release screw (1) and remove refrigerant line.
Installation
Replace sealing ring and moisten with refrigerant oil.
Tightening torque 64 53 2AZ , see 64 53 REFRIGERANT LINES AND EXPANSION VALVE .
Scheme 101
Replacement
Modify safety pressure switch .
After installation
- «Evacuate and fill A/C system»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e9293__64-50-009-drawing-off-evacuating) .
64 53 670 Replacing line from compressor to evaporator (S85)
| WARNING | Risk of injury! Refrigerant circuit is under high pressure! Follow safety instructions for handling R 134a refrigerant . Avoid contact with refrigerant and refrigerant oil. Follow safety instructions for handling refrigerant oil . |
| IMPORTANT | Risk of damage! Restart engine only when A/C system has been correctly filled. 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 |
Necessary preliminary tasks
- Drawing off, evacuating and filling the A/C system are not included in the time value given for this work operation
- Remove intake filter housing . See «13 71 000 REMOVING AND INSTALLING/REPLACING INTAKE FILTER HOUSING (S65)»(/bmw/m3/e90-2007-2013/remont/fuel-system/#fuel-system-repair-e9293__13-71-000-removing-and-installingreplacing) .
- Remove air manifold . See «11 61 050 REMOVING AND INSTALLING AIR INTAKE MANIFOLD (S65)»(/bmw/m3/e90-2007-2013/remont/mechanical/#engine-repair-e9293__11-61-050-removing-and-installing) .
- Remove both suspension cross-braces . See «51 71 345 REMOVING AND INSTALLING/REPLACING LEFT (OR RIGHT) SUSPENSION CROSS-BRACE»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e9293-m3__51-71-345-removing-and-installingreplacing) .
- Release refrigerant tank and place to one side
Release screw (1) and remove refrigerant line.
Installation
Replace sealing rings and moisten with refrigerant oil.
Tightening torque 64 53 5AZ , see 64 53 REFRIGERANT LINES AND EXPANSION VALVE .
Scheme 102
Expose refrigerant line up to evaporator connection.
Release screw (1) and remove refrigerant line.
Installation
Replace sealing ring and moisten with refrigerant oil.
Tightening torque 64 53 3AZ , see 64 53 REFRIGERANT LINES AND EXPANSION VALVE .
Scheme 103
After installation
- «Evacuate and fill A/C system»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e9293__64-50-009-drawing-off-evacuating) .
See also:
• 17 00 ... INSTRUCTIONS FOR WORKING ON COOLING SYSTEM
• 11 61 050 REMOVING AND INSTALLING AIR INTAKE MANIFOLD (S65)
• 11 72 000 REMOVING AND INSTALLING/REPLACING SECONDARY-AIR PUMP (S65)
• 32 31 070 REMOVING AND INSTALLING / REPLACING LOWER SECTION OF STEERING SPINDLE
• 51 71 345 REMOVING AND INSTALLING/REPLACING LEFT (OR RIGHT) SUSPENSION CROSS-BRACE
• 51 45 030 REMOVING AND INSTALLING INSTRUMENT PANEL TRIM
• 32 31 090 REMOVING AND INSTALLING/REPLACING STEERING COLUMN
• 51 45 ... REMOVING AND INSTALLING CARRIER FOR INSTRUMENT PANEL
• HEATER WITH OPERATION
• 17 00 009 CHECKING COOLING SYSTEM FOR LEAKS (S65)
• 51 45 185 REMOVING AND INSTALLING/REPLACING PANEL FOR PEDALS
• 51 45 181 REMOVING AND INSTALLING/REPLACING BOTTOM RIGHT TRIM FOR INSTRUMENT PANEL
• 13 71 000 REMOVING AND INSTALLING/REPLACING INTAKE FILTER HOUSING (S65)
• MAINTENANCE AND GENERAL INFORMATION - SPECIAL TOOLS
• 61 35 ... NOTES ON ESD PROTECTION (ELECTRO STATIC DISCHARGE)
• 51 16 366 REMOVING AND INSTALLING RIGHT GLOVEBOX WITH HOUSING
• 51 45 380 REMOVING AND INSTALLING (REPLACING) RIGHT DECORATIVE STRIP ON INSTRUMENT PANEL
• 51 45 370 REMOVING AND INSTALLING (REPLACING) LEFT DECORATIVE STRIP ON INSTRUMENT PANEL
• 61 31 241 REMOVING AND INSTALLING/REPLACING RIGHT HOOD/BONNET CONTACT SWITCH (M3)
• HEATING AND AIR CONDITIONING - TECHNICAL DATA
• HEATING AND AIR CONDITIONING - SPECIAL TOOLS
• 51 47 491 REMOVING AND INSTALLING/REPLACING REAR UNDERBODY PROTECTION
• STEERING AND WHEEL ALIGNMENT - SPECIAL TOOLS
• 17 00 005 DRAINING AND ADDING COOLANT (S65)
• 17 11 000 REMOVING AND INSTALLING RADIATOR
• handling R 134a refrigerant
• Replacing drier insert for A/C system
• refrigerant from A/C system
• expansion valve
• air ducts
• controller for heater/air conditioner fan
• fan
• left
• right
• microfilter for interior ventilation
• instructions for opening and replacing parts
• handling refrigerant
• lower section of microfilter housing
• Notes on replacing compressor
• condenser