Heating and Air Conditioning - Repair BMW M6 E63/E64

64 11 ... Installing servodrive

Installation

If necessary, align shaft of flap(s) to be actuated to position of servodrive to be installed.

Scheme 1

64 11 206 Removing and installing or replacing heater

Necessary preliminary tasks

1. Draw off refrigerant from A/C system, refer to «64 50 009 DRAWING OFF, EVACUATING AND FILLING A/C SYSTEM (R 134A)»(/bmw/m6/e63e64-2005-2010/remont/automatic-hvac-system/#heating-and-air-conditioning-repair__64-50-009-drawing-off-evacuating) .
2. Remove instrument panel trim, refer to «51 45 030 REMOVING AND INSTALLING INSTRUMENT PANEL TRIM»(ref-202134-S13736836442005102700000) .
3. Remove temperature sensor for cold-air distributor, refer to «64 11 916 REPLACING TEMPERATURE SENSOR FOR COLD-AIR DISTRIBUTOR»(/bmw/m6/e63e64-2005-2010/remont/automatic-hvac-system/#heating-and-air-conditioning-repair__64-11-916-replacing-temperature-sensor) .
4. Remove control unit for Car Access System, refer to «61 35 015 REMOVING AND INSTALLING (REPLACING) CONTROL UNIT FOR CAR ACCESS SYSTEM»(/bmw/m6/e63e64-2005-2010/remont/horns/#general-electrical-system-repair__61-35-015-removing-and-installing) .
5. In appropriate version: Remove head-up display, refer to «62 30 010 REMOVING AND INSTALLING/REPLACING HEAD-UP DISPLAY»(ref-202138-S06296180552005102700000) .

Unscrew nuts (1).

Installation

Tightening torque, refer to 64 53 8AZ in HEATING AND AIR CONDITIONING - TIGHTENING TORQUES - 645CI .

Detach refrigerant line (2) in direction of arrow.

Unclip refrigerant line (3).

Scheme 2

Feed out rubber grommet (1).

Installation

Make sure rubber grommet (1) is correctly seated.

Release nut (2) and detach refrigerant lines (3) and (4) in direction of arrow.

Scheme 3

Installation

Tightening torque refer to 64 53 7AZ in HEATING AND AIR CONDITIONING - TIGHTENING TORQUES - 645CI .

Replace sealing rings.

Release nuts (5) on right air duct.

Installation

Tightening torque, refer to 64 11 4AZ in HEATING AND AIR CONDITIONING - TIGHTENING TORQUES - 645CI .

Feed out rubber grommet (1).

Installation

Make sure rubber grommet (1) is correctly seated.

Release spring clamps (2) and detach coolant hoses (3).

Installation

Vent cooling system and check for leaks, refer to 17 00 039 VENTING COOLING SYSTEM AND CHECKING FOR LEAKS (N62) .

Release nuts (4) on left air duct.

Scheme 4

Installation

Tightening torque, refer to 64 11 4AZ in HEATING AND AIR CONDITIONING - TIGHTENING TORQUES - 645CI .

Remove soundproofing from left A-pillar (1) in direction of arrow.

Release screws (2).

Remove left air duct (4) in direction of cold-air distributor (3).

Scheme 5

Remove soundproofing from right A-pillar (1) in direction of arrow.

Release screws (2).

Remove right air duct (4) in direction of cold-air distributor (3).

Scheme 6

Carefully lever out locks (1) and (2).

Detach cold-air distributor (3) in direction of arrow.

Installation

Make sure cold-air distributor (3) is correctly seated.

Scheme 7

Necessary preliminary tasks

1. Disconnect all necessary cable ties on support tube.
2. Release wiring harnesses/cable ducts and lay to one side.
3. If necessary, remove control units/disconnect plug connections.

Installation

Make sure wiring harnesses/cable ducts are correctly routed and secured.

If necessary, remove CD changer (1), refer to 65 11 072 REMOVING AND INSTALLING/REPLACING CD CHANGER .

Release screws (2).

Set fuse-carrier (3) down in footwell.

Scheme 8

Scheme 9

Feed out footwell heater ducts (1) and remove.

Release screws (2), tightening torque, refer to 51 71 15AZ in BODY EQUIPMENT - TIGHTENING TORQUES - 645CI .

Release screws (3), tightening torque, 21.4 N.m.

Release nuts (4), tightening torque, refer to 51 71 15AZ in BODY EQUIPMENT - TIGHTENING TORQUES - 645CI .

Pull back support tube (5) and remove from vehicle with assistance of a second person.

If necessary, unlock and disconnect plug connections on heater (1).

Remove heater (1) in direction of arrow.

Scheme 10

Installation

Make sure heater (1) is correctly seated.

Installation

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

Scheme 11

64 11 208 Replacing heater core

Necessary preliminary tasks

1. Remove heater.

Release screws (1).

Press lock (2) and remove cover (3) in direction of arrow.

Installation

Ensure cover (3) is correctly seated.

Scheme 12

Pull out clips (1) in direction of arrow.

Installation

Make sure clips (1) are correctly and firmly seated.

Pull pipes (2) out of heater core (3).

Installation

Replace sealing rings.

Coat sealing rings with antiseize agent.

Make sure sealing rings are correctly seated.

Pull out heater core (3) in direction of arrow.

Scheme 13

Installation

Make sure heater core (3) is correctly seated.

64 11 213 Removing and installing/replacing heater - A/C unit fan

Necessary preliminary tasks

1. Remove trim panel for pedal assembly, refer to «51 45 185 REMOVING AND INSTALLING/REPLACING TRIM FOR PEDAL ASSEMBLY»(ref-202134-S35575834462005102700000) .
2. Remove right glovebox with housing, refer to «51 16 366 REMOVING AND INSTALLING RIGHT GLOVEBOX WITH HOUSING (WITHOUT ACTIVE KNEE PROTECTION)»(ref-202134-S00497280102005102700000) .
3. Remove bottom right instrument panel trim, refer to «51 45 181 REMOVING AND INSTALLING/REPLACING BOTTOM RIGHT TRIM FOR INSTRUMENT PANEL»(ref-202134-S18784146952005102700000) .
4. Remove storage compartment, refer to «51 16 200 REMOVING AND INSTALLING STORAGE COMPARTMENT»(ref-202134-S20101411712005102700000) .
5. Remove audio system controller, refer to «65 12 200 REMOVING AND INSTALLING (REPLACING) AUDIO SYSTEM CONTROLLER»(ref-202141-S17548416422005102700000) , remove Car Communication Computer, refer to «65 83 010 REMOVING AND INSTALLING/REPLACING CAR COMMUNICATION COMPUTER»(ref-202141-S18723840202005102700000) .

Release screws (3) and (4).

Remove middle function carrier (5) in direction of arrow.

Scheme 14

Installation

Make sure middle function carrier (5) is correctly seated.

Ensure correct cable routing.

Disconnect left air duct (1) in direction of arrow (2) and (3).

Scheme 15

Installation

Make sure right air duct (1) is correctly seated.

Disconnect right air duct (1) in direction of arrow (2) and (3).

Scheme 16

Installation

Make sure right air duct (1) is correctly seated.

Unlock plug (1) and remove.

Release screws (2).

Remove cover (3) in direction of arrow.

Installation

Ensure correct cable routing.

Make sure seal is correctly seated in cover (3).

Scheme 17

Release screws (1).

Remove fan for heater - A/C unit (2) in direction of arrow.

Scheme 18

Installation

Make sure fan for heater - A/C unit (2) is correctly seated.

Replacement

Unlock controller for heater - A/C unit fan (1) with a suitable screwdriver (2) and remove.

Unlock plug connections (3) and disconnect.

Scheme 19

Installation

Make sure controller for heater - A/C unit fan (1) is correctly seated.

64 11 225 Replacing controller for heater/air conditioner fan

Operation is described in

1. Removing and installing/replacing blower for heater/air conditioner, refer to «64 11 213 REMOVING AND INSTALLING/REPLACING HEATER - A/C UNIT FAN»(/bmw/m6/e63e64-2005-2010/remont/automatic-hvac-system/#heating-and-air-conditioning-repair__64-11-213-removing-and-installingreplacing) .

64 11 262 Removing and installing/replacing auxiliary water pump

Necessary preliminary tasks

1. Remove intake filter housing, refer to «13 71 000 REMOVING AND INSTALLING/REPLACING INTAKE FILTER HOUSING»(ref-202123-S28612454702005102700000) .
2. Disconnect coolant hoses from auxiliary water pump.

Unlock fast-release couplings (1) and detach coolant hoses from auxiliary water pump (4).

Installation

Follow instructions for working on cooling system, refer to 17 00 ... INSTRUCTIONS FOR WORKING ON COOLING SYSTEM. .

Fill and vent cooling system, refer to 17 00 005 DRAINING AND ADDING COOLANT (N62) .

Scheme 20

If necessary, release expander rivet (2).

Unfasten plug connection (3) and disconnect.

Installation

Ensure correct routing of cables.

Remove auxiliary water pump (4) in direction of arrow.

Replacement

Detach auxiliary water pump fixture (1) in direction of arrow from auxiliary water pump (2).

Scheme 21

Installation

Make sure auxiliary water pump (2) is correctly seated in auxiliary water pump fixture (1).

64 11 274 Replacing water valve for heater

Only perform this work after engine has cooled down.

Necessary preliminary tasks

1. Remove intake filter housing, refer to «13 71 000 REMOVING AND INSTALLING/REPLACING INTAKE FILTER HOUSING»(ref-202123-S28612454702005102700000) .
2. Disconnect coolant hoses from water hose for heater.

Unfasten plug connection (1) and disconnect.

Release spring clamps (2) and detach coolant hoses.

Pull out water valve for heater (3) towards top.

Scheme 22

Installation

Fill and vent cooling system, refer to 17 00 005 DRAINING AND ADDING COOLANT (N62) .

Installation

Make sure water valve (1) is correctly seated in grommets (2) and rubber mount (3).

If necessary, replace grommets (2) and rubber mount (3).

Scheme 23

64 11 324 Replace the button caps for the heater controls (E60/E61 from 03/2007, E63/E64 from 09/2007)

Necessary preliminary tasks

1. Remove control panel for heating - air conditioning.

Turn temperature selector wheel (1) to stop (arrow).

Scheme 24

Note. Air flow control (2) has no end stop.

Unclip the protective cap (1) of the temperature selector wheels and air flow controller with button cap (2) in direction of arrow.

Scheme 25

Installation note: Clip protective cap (1) of the left temperature selector wheel in with mark pointing to the left (arrow). Clip the protective cap of the right temperature selector wheel in with mark pointing to the right. Protective caps must audibly snap into place.

Scheme 26

Installation note: Mark (1) must be aligned with mark (2) of the protective cap of the air flow controller (3). Protective cap must audibly snap into place.

Scheme 27

Set included special tool (2) onto the switch block (1) as shown. Press the special tool to the stop onto the switch block. Carefully pull both switch blocks (1) out with special tool (2).

Note. If applicable, the switch springs located behind the switch block will fall out when pulling out the switch block.

Carefully insert the switch springs (1) into the inlet (2) of the switch block (3) as shown. Carefully clip switch blocks (3) into the operating unit of the air conditioning.

Installation note: The repair kit includes 7 switch springs. However, only 5 switch springs will be installed.

The switch spring positions may not be changed during installation. Check buttons and switch springs for function.

Scheme 28

Installation note: The springs must be inserted in the left switch block as shown.

Scheme 29

Installation note: The springs must be inserted in the right switch block as shown.

Scheme 30

Check function of the heating and air conditioning system.

64 11 377 Removing and installing (replacing) control panel for heater - A/C system

Necessary preliminary tasks

1. Remove middle trim for instrument panel, refer to «51 45 310 REMOVING AND INSTALLING (REPLACING) CENTER TRIM FOR INSTRUMENT PANEL»(ref-202134-S33337117492005102700000) .

Release screws (1).

Unclip control panel for heater - A/C system (2) all round and remove from middle trim for instrument panel (3).

Scheme 31

64 11 803 Removing and installing/replacing servodrive for left fresh-air/reirculated-air flap

Necessary preliminary tasks

1. Remove trim panel for pedal assembly, refer to «51 45 185 REMOVING AND INSTALLING/REPLACING TRIM FOR PEDAL ASSEMBLY»(ref-202134-S35575834462005102700000) .
2. Remove air distributor in footwell and side heating duct/left rear seat area, refer to «64 11 943 REPLACING EVAPORATOR TEMPERATURE SENSOR»(/bmw/m6/e63e64-2005-2010/remont/automatic-hvac-system/#heating-and-air-conditioning-repair__64-11-943-replacing-evaporator-temperature) .

Press lock (2) and pull out servodrive for left fresh-air/ recirculated-air flap (3) in direction of arrow.

Unfasten plug connection (1) and disconnect.

Scheme 32

Installation

Follow repair instruction "Installing servodrive", refer to 64 11 ... INSTALLING SERVODRIVE .

Servodrive for left fresh-air/recirculated-air flap (3) must snap audibly into place.

64 11 808 Removing and installing/replacing servodrive for right fresh-air/recirculated air flap

Necessary preliminary tasks

1. Remove bottom right trim panel from instrument panel, refer to «51 45 181 REMOVING AND INSTALLING/REPLACING BOTTOM RIGHT TRIM FOR INSTRUMENT PANEL»(ref-202134-S18784146952005102700000) .

Unfasten plug connection (1) and disconnect.

Press lock (2) and pull out servodrive for right fresh-air/ recirculated-air flap (3) in direction of arrow.

Scheme 33

Installation

Follow repair instruction "Installing servodrive", refer to 64 11 ... INSTALLING SERVODRIVE .

Servodrive for right fresh-air/recirculated-air flap (3) must snap audibly into place.

64 11 830 Replacing servodrive for left ventilation flap

Necessary preliminary tasks

1. Remove trim panel for pedal assembly, refer to «51 45 185 REMOVING AND INSTALLING/REPLACING TRIM FOR PEDAL ASSEMBLY»(ref-202134-S35575834462005102700000) .
2. Remove air distributor in footwell and heating duct in rear compartment on left, refer to «64 11 943 REPLACING EVAPORATOR TEMPERATURE SENSOR»(/bmw/m6/e63e64-2005-2010/remont/automatic-hvac-system/#heating-and-air-conditioning-repair__64-11-943-replacing-evaporator-temperature) .

Unfasten plug connection (1) and disconnect.

Press lock (2) and pull out servodrive for left ventilation flap (3) in direction of arrow.

Scheme 34

Installation

Follow repair instruction "Installing servodrive", refer to 64 11 ... INSTALLING SERVODRIVE .

Servodrive for left ventilation flap (3) must snap audibly into place.

64 11 832 Replacing servodrive for right ventilation flap

Necessary preliminary tasks

1. Remove instrument panel trim, refer to «51 45 030 REMOVING AND INSTALLING INSTRUMENT PANEL TRIM»(ref-202134-S13736836442005102700000) .

Scheme 35

Unfasten plug connection (1) and disconnect.

Press lock (2) and pull out servodrive for right ventilation flap (3) in direction of arrow.

Installation

Follow repair instruction "Installing servodrive", refer to 64 11 ... INSTALLING SERVODRIVE .

Servodrive for right ventilation flap (3) must snap audibly into place.

64 11 840 Replacing servodrive for left footwell flap

Necessary preliminary tasks

1. Remove trim for instrument panel, refer to «51 45 030 REMOVING AND INSTALLING INSTRUMENT PANEL TRIM»(ref-202134-S13736836442005102700000) .

Press lock (1) and unclip servodrive for left footwell flap (2) in direction of arrow.

Unfasten plug connection (3) and disconnect.

Scheme 36

Installation

Follow repair instruction "Installing servodrive", refer to 64 11 ... INSTALLING SERVODRIVE .

64 11 842 Replacing servodrive for right footwell flap

Necessary preliminary tasks

1. Remove trim for instrument panel, refer to «51 45 030 REMOVING AND INSTALLING INSTRUMENT PANEL TRIM»(ref-202134-S13736836442005102700000) .

Press lock (1) and unclip servodrive for right footwell flap (2) in direction of arrow.

Unfasten plug connection (3) and disconnect.

Scheme 37

Installation

Follow repair instruction "Installing servodrive", refer to 64 11 ... INSTALLING SERVODRIVE .

64 11 869 Replacing servodrive of stratification flap

Necessary preliminary tasks

1. Remove right glovebox with housing, refer to «51 16 366 REMOVING AND INSTALLING RIGHT GLOVEBOX WITH HOUSING (WITHOUT ACTIVE KNEE PROTECTION)»(ref-202134-S00497280102005102700000) .
2. Remove air distributor in footwell and air duct at side, refer to «64 11 943 REPLACING EVAPORATOR TEMPERATURE SENSOR»(/bmw/m6/e63e64-2005-2010/remont/automatic-hvac-system/#heating-and-air-conditioning-repair__64-11-943-replacing-evaporator-temperature) .

Unfasten plug connection (1) and disconnect.

Press lock (2) and pull out servodrive for stratification flap (3) in direction of arrow.

Scheme 38

Installation

Follow repair instruction "Installing servodrive", refer to 64 11 ... INSTALLING SERVODRIVE .

Servodrive for stratification flap (3) must snap audibly into place.

64 11 875 Removing and installing/replacing servodrive for defrosting flap

Necessary preliminary tasks

1. Remove trim panel for pedal assembly, refer to «51 45 185 REMOVING AND INSTALLING/REPLACING TRIM FOR PEDAL ASSEMBLY»(ref-202134-S35575834462005102700000) .
2. Remove air distributor in footwell and heating duct in rear compartment on left, refer to «64 11 943 REPLACING EVAPORATOR TEMPERATURE SENSOR»(/bmw/m6/e63e64-2005-2010/remont/automatic-hvac-system/#heating-and-air-conditioning-repair__64-11-943-replacing-evaporator-temperature) .

Press lock (1) and pull out servodrive for defrosting flap (2) in direction of arrow.

Unfasten plug connection (3) and disconnect.

Scheme 39

Installation

Follow repair instruction "Installing servodrive", refer to 64 11 ... INSTALLING SERVODRIVE .

Servodrive for defrosting flap (2) must snap audibly into place.

64 11 902 Replacing sensor fan for interior temperature

Necessary preliminary tasks

1. Remove control panel for heater - A/C system.

Release screws (1).

Pull out sensor blower for interior temperature (2) in direction of arrow.

Installation

Make sure pins (3) are correctly seated in base (4).

Scheme 40

64 11 912 Removing and installing/replacing temperature sensor for heating unit

Necessary preliminary tasks

1. Remove on-board monitor, refer to «65 82 050 REMOVING AND INSTALLING (REPLACING) ONBOARD MONITOR»(ref-202141-S02959815262005102700000) .

Unlock plug connection (1) on left/right and disconnect.

Pull out temperature sensor for heating unit in direction of arrow out of heating unit (2).

Scheme 41

Installation

Make sure temperature sensor for heating unit is correctly seated.

64 11 916 Replacing temperature sensor for cold-air distributor

Necessary preliminary tasks

1. Remove audio system controller, refer to «65 12 200 REMOVING AND INSTALLING (REPLACING) AUDIO SYSTEM CONTROLLER»(ref-202141-S17548416422005102700000) , remove Car Communication Computer, refer to «65 83 010 REMOVING AND INSTALLING/REPLACING CAR COMMUNICATION COMPUTER»(ref-202141-S18723840202005102700000) .

Disconnect plug connection (2).

Turn temperature sensor for cold-air distributor (1) counterclockwise, feed out towards bottom and remove.

If necessary, release screws (3) and (4).

Pull back center function carrier (5) at top slightly.

Scheme 42

Installation

Make sure temperature sensor for cold-air distributor (1) is correctly seated.

64 11 943 Replacing evaporator temperature sensor

Necessary preliminary tasks

1. Remove trim panel for pedal assembly, refer to «51 45 185 REMOVING AND INSTALLING/REPLACING TRIM FOR PEDAL ASSEMBLY»(ref-202134-S35575834462005102700000) .

Release screw (1).

Detach heating duct in rear compartment on left (2) in direction of arrow from air distributor in footwell (3).

Scheme 43

Pull out air distributor in footwell (3) in direction of arrow.

Installation

Make sure heating duct in rear compartment on left (2) and air distributor in footwell (3) are correctly seated.

Unscrew bolt (1).

Pull out heating duct in rear compartment on left (2) in direction of arrow and feed out.

Scheme 44

Installation

Make sure heating duct in rear compartment on left (2) is correctly seated.

Unfasten plug connection (1) and disconnect.

Pull out evaporator temperature sensor (2) in direction of arrow and feed out.

Scheme 45

Installation

Ensure evaporator temperature sensor (2) is correctly seated.

64 11 970 Replacing fogging sensor

Special tools required

Note. For special tools, refer to HEATING & AIR CONDITIONING - SPECIAL TOOLS - 645CI (E63) .

1. 00 9 317

Necessary preliminary tasks

1. Remove two-part mirror base cover, refer to «61 35 177 REMOVING AND INSTALLING (REPLACING) RAIN/LIGHT SENSOR»(/bmw/m6/e63e64-2005-2010/remont/horns/#general-electrical-system-repair__61-35-177-removing-and-installing) .

Unfasten plug connection (1) and disconnect.

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.

Scheme 46

Installation

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

Clean bonding surface with adhesive remover.

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 °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 47

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

Unfasten plug connection (1) and disconnect.

Feed out sensor for automatic recirculated air control (2) in direction of arrow and remove.

Scheme 48

Installation

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

64 11 992 Removing and installing/replacing solar sensor

Necessary preliminary tasks

1. Remove speaker frame from trim for instrument panel at top, refer to «51 45 115 REMOVING AND INSTALLING SPEAKER FRAME ON PANEL FOR INSTRUMENT PANEL AT TOP»(ref-202134-S04001035722005102700000) .

Unlock catches (1) in direction of arrow and remove solar sensor (2) from speaker frame (3).

Scheme 49

Installation

Catches (1) on speaker frame (3) must not be damaged.

Make sure solar sensor (2) is correctly seated in speaker frame (3).

64 12 ... Initializing independent heating remote control

The following steps are required for initializing a new independent heating remote control or after replacing the Car Access System control unit

1. Close and then reopen central locking with vehicle remote control.
2. Within 5 seconds: Switch ignition lock from terminal "0" to terminal "R" and then back to terminal "0".
3. Press and hold down "OFF" button on independent heating remote control.
4. Press "ON" button on independent heating remote control 3 times in succession

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

Note. Both independent heating remote controls must be reinitialized after the Car Access System control unit has been replaced.

64 12 ... Replacing burner insert for independent heater

Necessary preliminary tasks

1. Remove complete independent/auxiliary heater.

Release screws (1) and remove bracket (2) from heater. Tightening torque, see 64 12 2AZ in 12 AUXIL. HEATER WITH CONTROL ELEMENTS .

Scheme 50

Release hose clamp (1) on hose for circulating pump and disconnect hose. Release hose clamp (2) on intake filter hose and disconnect hose.

Installation: Check all water hoses for damage, replace if necessary.

Scheme 51

Carefully lift cover (1) off heater.

Scheme 52

Disconnect plug connection (1).

Scheme 53

Disconnect plug connection (1).

Scheme 54

Release screws (1). Tightening torque, see 64 12 3AZ in 12 AUXIL. HEATER WITH CONTROL ELEMENTS . Replace all screws. Carefully lift out combustion air blower unit (2).

Scheme 55

Release screws (1) and pull out burner insert (3) with grommet (2). Replace all screws. Tightening torque, see 64 12 4AZ in 12 AUXIL. HEATER WITH CONTROL ELEMENTS .

Installation: Make sure grommet (2) is in correct installation position.

Scheme 56

Installation

1. Replace seals (1, 2) and clean sealing surfaces thoroughly.
2. If necessary, remove soot deposits.
3. To prevent the fuel pipe on the burner element being damaged, coat seal (2) with spirit when fitting housing.

Scheme 57

After installation: Fill and vent cooling system and check for leaks

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

Necessary preliminary tasks

1. Remove left front wheel, refer to «36 10 300 REMOVING OR INSTALLING FRONT OR REAR WHEEL»(ref-202132-S26430408482005102700000) .
2. Remove front left wheel arch lining, refer to «51 71 040 REMOVING AND INSTALLING/REPLACING FRONT LEFT OR RIGHT WHEEL ARCH COVER»(ref-202134-S23586682412005102700000) .
3. Remove left underbody paneling.

Disconnect plug connections (1) and (2).

Release screws (3).

Fold independent heater (4) in direction of arrow to one side.

Scheme 58

Installation

Make sure exhaust pipe of independent heater (4) is correctly seated in muffler (5).

Detach cable strap (1).

Release spring clip (2) and detach corrugated tube from independent/auxiliary heater.

Remove intake muffler for independent/auxiliary heater (3).

Scheme 59

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

Special tools required

Note. For special tools, refer to HEATING & AIR CONDITIONING - SPECIAL TOOLS - 645CI (E63) .

1. 64 1 020

Partially fit special tool 64 1 020 as illustrated.

Lever out nozzle (1) at retaining points (2) and remove.

Scheme 60

Unscrew bolt (1).

Hook special tool 64 1 020 into left fresh-air grill (2).

Unclip left fresh-air grill (2) towards rear and pull back.

Unlock and disconnect associated plug connection, remove left fresh-air grill (2).

Scheme 61

Replacement

Remove lighting control unit, refer to 61 31 037 REMOVING AND INSTALLING/REPLACING LIGHTING CONTROL UNIT .

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

Necessary preliminary tasks

1. Remove decorative strip on instrument panel on right, refer to «51 45 380 REMOVING AND INSTALLING (REPLACING) RIGHT DECORATIVE STRIP ON INSTRUMENT PANEL»(ref-202134-S03650288102005102700000) .

Release screws (1).

Pull back right fresh-air grill (2) and remove.

Scheme 62

64 22 165 Removing and installing/replacing center fresh-air grill

Special tools required

Note. For special tools, refer to HEATING & AIR CONDITIONING - SPECIAL TOOLS - 645CI (E63) .

1. 00 9 341

Necessary preliminary tasks

1. Remove switch for hazard warning system/central locking, refer to «61 31 079 REMOVING AND INSTALLING/REPLACING SWITCH FOR HAZARD WARNING SYSTEM/CENTRAL LOCKING»(/bmw/m6/e63e64-2005-2010/remont/horns/#general-electrical-system-repair__61-31-079-removing-and-installingreplacing) .

Release screw (1).

Partially fit special tool 00 9 341 as illustrated.

Lever out trim for center instrument panel (2) completely with center fresh-air grill (3) all round and remove.

Scheme 63

Replacement

Release screws (1) and (2).

Remove trim for center instrument panel (4) in direction of arrow from center fresh-air grill (3).

Scheme 64

Installation

Make sure trim for center instrument panel (4) is correctly seated in associated mounts of center fresh-air grill (3).

64 31 010 Replacing microfilter for interior ventilation

If necessary, disconnect plug connection for engine hood contact switch.

Turn quick-release fastener (1) approx. 90° counterclockwise.

Open holder (2) in direction of arrow.

Remove microfilter air duct (3) in direction of arrow.

Scheme 65

Installation

Make sure microfilter air duct (3) is correctly seated.

Lever microfilter for interior ventilation (1) in direction of arrow out of microfilter air duct (2) and remove.

Scheme 66

Installation

Make sure microfilter for interior ventilation (1) is correctly seated in microfilter air duct (2).

64 31 053 Removing and installing or replacing fresh air duct

Necessary preliminary tasks

All models

1. Remove microfilter housing lower sections on left and right, refer to «64 31 061 REMOVING AND INSTALLING/REPLACING LEFT OR RIGHT MICROFILTER HOUSING LOWER SECTION»(/bmw/m6/e63e64-2005-2010/remont/automatic-hvac-system/#heating-and-air-conditioning-repair__64-31-061-removing-and-installingreplacing) .
2. Remove tension strut on spring strut dome, refer to «51 71 373 REMOVING AND INSTALLING/REPLACING TENSION STRUT ON SPRING STRUT DOME»(ref-202134-S35971794602005102700000) .

M57 only

1. Remove air cleaner element.

Unscrew bolt (1).

Installation

Tightening torque, refer to 64 31 2AZ in HEATING AND AIR CONDITIONING - TIGHTENING TORQUES - 645CI .

Loosen screws (2).

Installation

Tightening torque, refer to 64 31 1AZ in HEATING AND AIR CONDITIONING - TIGHTENING TORQUES - 645CI .

Scheme 67

Turn quick-release fastener (3) approx. 90° counterclockwise.

If necessary, release screw on pipe clamp.

Installation

Tightening torque, refer to 64 31 3AZ in HEATING AND AIR CONDITIONING - TIGHTENING TORQUES - 645CI .

Feed out fresh air duct (4) in direction of arrow and remove.

Installation

If necessary, replace damaged seals.

Make sure fresh air duct (4) is correctly seated.

64 31 061 Removing and installing/replacing left or right microfilter housing lower section

Necessary preliminary tasks

1. Remove microfilter air duct, refer to «64 31 010 REPLACING MICROFILTER FOR INTERIOR VENTILATION»(/bmw/m6/e63e64-2005-2010/remont/automatic-hvac-system/#heating-and-air-conditioning-repair__64-31-010-replacing-microfilter-for) .

Left microfilter housing lower section

Unclip hose.

Installation

Make sure hose is correctly seated.

Right microfilter housing lower section

Installation

Ensure correct cable routing.

Left or right microfilter housing lower section

Partially detach engine compartment gasket (1).

Unscrew bolt (2).

Turn quick-release fasteners (3) approx. 90° counterclockwise.

Feed out microfilter housing lower section (4) in direction of arrow and remove.

Installation

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

Scheme 68

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 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 replaced as excessive moisture may have entered the system. See .

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!).

64 50 ... LEAK TESTING WITH ULTRAVIOLET ADDITIVES (UV ADDITIVES) (BMW LEAK-TESTING 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 69

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.

Scheme 70

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

Scheme 71

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

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

1. Start engine.
2. Run A/C system at highest setting for 5-10 minutes in order to ensure adequate distribution of dye in the system
3. Switch off engine
4. Check all A/C 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 72

64 52 ... INSTRUCTIONS FOR OPENING AND REPLACING PARTS IN REFRIGERANT CIRCUIT

1. 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/m6/e63e64-2005-2010/remont/automatic-hvac-system/#heating-and-air-conditioning-repair__64-50-009-drawing-off-evacuating) .
2. 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/m6/e63e64-2005-2010/remont/automatic-hvac-system/#heating-and-air-conditioning-repair__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 . See «64 50 009 DRAWING OFF, EVACUATING AND FILLING A/C SYSTEM (R 134A)»(/bmw/m6/e63e64-2005-2010/remont/automatic-hvac-system/#heating-and-air-conditioning-repair__64-50-009-drawing-off-evacuating) .
3. 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. See «64 50 009 DRAWING OFF, EVACUATING AND FILLING A/C SYSTEM (R 134A)»(/bmw/m6/e63e64-2005-2010/remont/automatic-hvac-system/#heating-and-air-conditioning-repair__64-50-009-drawing-off-evacuating) . 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/m6/e63e64-2005-2010/remont/automatic-hvac-system/#heating-and-air-conditioning-repair__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 . See «64 50 009 DRAWING OFF, EVACUATING AND FILLING A/C SYSTEM (R 134A)»(/bmw/m6/e63e64-2005-2010/remont/automatic-hvac-system/#heating-and-air-conditioning-repair__64-50-009-drawing-off-evacuating) .

64 50 ... Air conditioner test (R 134a)

Before A/C efficiency test, satisfy following conditions

1. Provide a MoDiC or DIS.
2. Provide a thermometer with separate gauge.
3. Compressor load (intake air temperature of approx. 50°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 roofliner at the height of the B-pillar. Lay gauge outwards out of vehicle interior.

Re 3

Heating up vehicle interior

1. A/C button is not activated during heating up.
2. Close all windows and doors.
3. Set recirculated air mode.
4. Select air distribution mode for footwell and defrosting.
5. Maximum temperature setting.
6. Maximum fan stage.
7. Run engine at approx. 2000 RPM.

A/C efficiency test

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

After 2-3 minutes, evaporator sensor temperature must be 10° Celsius.

Draw off A/C system if this temperature is not reached, refer to 64 50 009 DRAWING OFF, EVACUATING AND FILLING A/C SYSTEM (R 134A) . Measure amount of refrigerant drawn off.

If drawn-off quantity does not correspond to specified fill quantity: replenish refrigerant.

If refrigerant quantity is correct fill A/C system.

Note. A/C systems with uncontrolled compressors only

If necessary, then continue troubleshooting by pressure measurement.

64 50 ... Leak-testing with leak tester device

Carry out leak-testing with a leak tester device from the workshop equipment catalog following the device manufacturer's operating instructions.

If leaks not to be localized are already identified during evacuation, the A/C system must nevertheless be filled, refer to 64 50 009 DRAWING OFF, EVACUATING AND FILLING A/C SYSTEM (R 134A) . Then test for leaks with leak tester device.

Note. Refrigerant is heavier than air.

Therefore always conduct the leak test below the lines and components to be tested.

Shield lines and components against strong blasts of air (wind, drawing off).

Tighten down loose lines, mark leaks.

Then draw off draw off A/C system, refer to 64 50 009 DRAWING OFF, EVACUATING AND FILLING A/C SYSTEM (R 134A) , and seal off or repair leakage points.

Then refill A/C system and test for leaks, refer to 64 50 009 DRAWING OFF, EVACUATING AND FILLING A/C SYSTEM (R 134A) .

64 50 ... Safety 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 filled A/C systems or in rooms into which R 134a may have leaked. Exposure to flames or high temperatures (equal 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.

Wash off 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!).

64 50 ... Safety precautions when handling refrigerant oil (for refrigerant R 134a)

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 50 009 Drawing off, evacuating and filling A/C system (R 134a)

Follow safety instructions for handling refrigerant R 134a, refer to 64 50 ... SAFETY INSTRUCTIONS FOR HANDLING REFRIGERANT R 134A .

Follow safety instructions for handling refrigerant oil, refer to 64 50 ... SAFETY PRECAUTIONS WHEN HANDLING REFRIGERANT OIL (FOR REFRIGERANT R 134A) .

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, refer to 64 50 ... LEAK-TESTING WITH LEAK TESTER DEVICE .

Instructions for filling A/C system

Before filling with refrigerant, top up the refrigerant oil entrained during drawing off.

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.

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 for fill quantities.

Scheme 73

Installation

1. Reseal refrigerant filler necks on vehicle with sealing caps.

64 51 LEAK-TESTING EVAPORATOR

Necessary preliminary tasks

1. Remove «expansion valve»(/bmw/m6/e63e64-2005-2010/remont/automatic-hvac-system/#heating-and-air-conditioning-repair__64-51-525-removing-and-installing)

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

Scheme 74

Connect special tool 64 5 126 to retaining clip and screws of expansion valve. Tightening torque 64 53 9AZ . Connect special tool 64 5 121 to special tool 64 5 126 .

Scheme 75

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.

After leak-testing

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

64 51 ... Leak-Testing Condenser

Special tools Required

1. 00 9 030 (Wedge)
2. 64 5 121 (Connection hose with clamp)
3. 64 5 122 (Climate condenser test adapter)
4. 64 5 123 (Climate condenser seal plug)

Necessary preliminary tasks

1. Drain off «air conditioner»(/bmw/m6/e63e64-2005-2010/remont/automatic-hvac-system/#heating-and-air-conditioning-repair__64-50-009-drawing-off-evacuating)
2. Detach refrigerant lines from condenser

Scheme 76

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, see 64 53 6AZ in 53 CONDENSER AND DRYER .

Scheme 77

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

Scheme 78

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.

After leak-testing

1. Replace all sealing rings. Use special tool 00 9 030 to mount sealing rings without damaging them.
2. Assemble A/C system
3. Evacuate and fill A/C system

64 51 001 Cleaning evaporator

Special tools required

Note. For special tools, refer to HEATING & AIR CONDITIONING - SPECIAL TOOLS - 645CI (E63) .

1. 64 1 480

1. Close all air vents.
2. Switch heating - A/C system to recirculated-air mode.

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 fresh air duct, refer to «64 31 053 REMOVING AND INSTALLING OR REPLACING FRESH AIR DUCT»(/bmw/m6/e63e64-2005-2010/remont/automatic-hvac-system/#heating-and-air-conditioning-repair__64-31-053-removing-and-installing) .

Partially detach transmission underbody protection (6) for draining cleaning fluid

Release screws (2 ... 4) in rear area and press heat shield (5) away.

Scheme 79

Connect special tool 64 1 480 (spray lance) to spraying equipment.

Insert spray lance (1) through opening (2) to fresh air duct.

Scheme 80

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

Note. After rinsing with water, blow out evaporator with spray lance and air only for approx. 5 minutes. Do this predominantly in the center of the evaporator to dry the fan motor behind. 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 heating - A/C system. 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

Necessary preliminary tasks

1. Draw off refrigerant from A/C system, refer to «64 50 009 DRAWING OFF, EVACUATING AND FILLING A/C SYSTEM (R 134A)»(/bmw/m6/e63e64-2005-2010/remont/automatic-hvac-system/#heating-and-air-conditioning-repair__64-50-009-drawing-off-evacuating) .
2. Remove fresh air duct, refer to «64 31 053 REMOVING AND INSTALLING OR REPLACING FRESH AIR DUCT»(/bmw/m6/e63e64-2005-2010/remont/automatic-hvac-system/#heating-and-air-conditioning-repair__64-31-053-removing-and-installing) .

Feed out rubber grommet (1).

Installation

Make sure rubber grommet (1) is correctly seated.

Unscrew nut (2).

Scheme 81

Installation

Tightening torque, refer to 64 53 7AZ in HEATING AND AIR CONDITIONING - TIGHTENING TORQUES - 645CI .

Detach refrigerant lines (3) and (4) in direction of arrow.

Installation

Replace sealing rings.

Release screws (1).

Scheme 82

Installation

Tightening torque, refer to 64 53 9AZ in HEATING AND AIR CONDITIONING - TIGHTENING TORQUES - 645CI .

Detach expansion valve (2) in direction of arrow.

Installation

Replace sealing rings.

Make sure soundproofing (3) is correctly seated.

64 51 591 Removing and installing/replacing evaporator

Necessary preliminary tasks

1. Remove heater.
2. Remove heater core, refer to «64 11 208 REPLACING HEATER CORE»(/bmw/m6/e63e64-2005-2010/remont/automatic-hvac-system/#heating-and-air-conditioning-repair__64-11-208-replacing-heater-core) .
3. Remove expansion valve refer to «64 51 525 REMOVING AND INSTALLING OR REPLACING EXPANSION VALVE»(/bmw/m6/e63e64-2005-2010/remont/automatic-hvac-system/#heating-and-air-conditioning-repair__64-51-525-removing-and-installing) .
4. Remove rear compartment air duct.
5. Remove fan for heater/air conditioner.
6. Remove servodrive of left fresh-air/recirculated-air flap, refer to «64 11 803 REMOVING AND INSTALLING/REPLACING SERVODRIVE FOR LEFT FRESH-AIR/REIRCULATED-AIR FLAP»(/bmw/m6/e63e64-2005-2010/remont/automatic-hvac-system/#heating-and-air-conditioning-repair__64-11-803-removing-and-installingreplacing) .

Carefully pull off bulkhead seals (1) from heater/air conditioner (2) so that there are no remaining parts left behind.

Scheme 83

Installation

Replace bulkhead seals (1).

Release screws (1).

Press lock (2).

Remove pipe holder (3) complete with pipes (4).

Scheme 84

Release screws (1).

Scheme 85

Release screws (1).

Installation

Make sure flaps (2) are correctly seated in mountings (3).

Scheme 86

Release screws (1).

Remove upper housing section (2) in direction of arrow.

Installation

Make sure upper housing section (2) is correctly seated on lower housing section.

Make sure flaps (3) are correctly seated in mountings (4).

Scheme 87

Release screws (1).

Release clip (2).

Remove cover (3) in direction of arrow.

Scheme 88

Installation

Make sure cover (3) is correctly seated.

Pull evaporator (1) in direction of arrow out of lower housing section (2).

Installation

If necessary, replace seal (3).

Make sure seal (3) is correctly seated in lower housing section (2).

Scheme 89

Replacement

Remove plate (2) and seal (3) from evaporator (3).

Scheme 90

64 52 ... Instructions for compressor replacement

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

Scheme 91

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 64 50 009 DRAWING OFF, EVACUATING AND FILLING A/C SYSTEM (R 134A) .

Transfer the refrigerant oil remaining in the previous compressor via the filler plug completely into a measuring container.

Scheme 92

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

Scheme 93

Depending on its design, the new compressor is filled at the factory with 120 to 200 g refrigerant oil. Open filler plug and pour entire contents of compressor into a clean container.

Scheme 94

Installation

If necessary, replace gasket.

Observe tightening torque, refer to 64 52 2AZ in HEATING AND AIR CONDITIONING - TIGHTENING TORQUES - 645CI .

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

Scheme 95

Remaining refrigerant oil can be poured into service station tank, refer to 64 50 009 DRAWING OFF, EVACUATING AND FILLING A/C SYSTEM (R 134A) .

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.

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.

Scheme 96

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 64 50 009 DRAWING OFF, EVACUATING AND FILLING A/C SYSTEM (R 134A) .

Scheme 97

Installation

If A/C system is opened for more than 24 hours: Replace drier bottle/drier insert.

64 52 ... Notes/instructions on working on air-conditioning systems

Note. If A/C system is opened for more than 24 hours: Replace desiccant insert for A/C system, refer to 64 53 517 REPLACING DESICCANT INSERT FOR A / C SYSTEM (CONDENSER REMOVED) .

64 52 523 Replacing A/C system compressor (S85)

Necessary preliminary tasks

1. «Drawing off, evacuating and filling the A/C system»(/bmw/m6/e63e64-2005-2010/remont/automatic-hvac-system/#heating-and-air-conditioning-repair__64-50-009-drawing-off-evacuating) are not included in the time value given for this work operation.
2. Remove right intake filter housing. See «13 71 020 REMOVING AND INSTALLING RIGHT INTAKE FILTER HOUSING (S85)»(/bmw/m6/e63e64-2005-2010/remont/fuel-system/#fuel-system-repair__13-71-020-removing-and-installing)
3. Remove A/C compressor drive belt. See «28 V-RIBBED BELT W-TENSIONER»(/bmw/m6/e63e64-2005-2010/remont/mechanical/#engine-repair)
4. Remove front underbody protection. See «47 FLOOR-LUGGAGE COMPARTMENT-ENGINE»(/bmw/m6/e63e64-2005-2010/remont/door-locks-anti-theft-systems/#body-equipment-repair)
5. Remove stabilizer from front axle carrier. See «31 35 000 REMOVING AND INSTALLING/REPLACING FRONT STABILIZER»(/bmw/m6/e63e64-2005-2010/remont/axle-shafts/#front-axle-repair__31-35-000-removing-and-installingreplacing)
6. Remove right tension strut from front axle carrier. See «31 12 080 REMOVING AND INSTALLING/REPLACING BOTH TENSION STRUTS»(/bmw/m6/e63e64-2005-2010/remont/axle-shafts/#front-axle-repair__31-12-080-removing-and-installingreplacing)

Release screws (1). Tightening torque, see 64 52 1AZ in 52 COMPRESSOR . Disconnect pressure and suction lines. Installation: Replace sealing rings. Use special tool 00 9 030 to mount sealing rings without damaging them. Disconnect plug connection (2).

Scheme 98

Release screw (1). Tightening torque, see 64 52 3AZ in 52 COMPRESSOR .

Scheme 99

Note. Secure compressor (1) against falling out.

Release screws (2, 3). Tightening torque, see 64 52 3AZ in 52 COMPRESSOR . Feed out compressor (1).

Scheme 100

After installation: Evacuate and fill A/C system

64 52 524 Replacing A/C system compressor (N62)

Necessary preliminary tasks

1. Remove front assembly underside protection, refer to «51 47 490 REMOVING AND INSTALLING / REPLACING FRONT UNDERBODY PROTECTION»(ref-202134-S02430352092005102700000) .
2. Remove A/C compressor drive belt
3. Release stabilizer on front axle, refer to «37 11 010 REMOVING AND INSTALLING/REPLACING FRONT ACTIVE STABILIZER»(ref-202133-S01514057022005102700000) .

Note. The time value given for this work operation does not include drawing off, evacuating and filling the A/C system! Drain off air conditioner, refer to 64 50 009 DRAWING OFF, EVACUATING AND FILLING A/C SYSTEM (R 134A) .

Release screws (1).

Remove front panel center section (2) in direction of arrow and place to one side.

Scheme 101

Release screws (1) and feed out refrigerant lines (2).

Tightening torque, refer to 64 53 6AZ in HEATING AND AIR CONDITIONING - TIGHTENING TORQUES - 645CI .

Scheme 102

Release screw (1) and disconnect coolant line connection.

Scheme 103

Installation

Replace all sealing rings.

Tightening torque, refer to 64 53 6AZ in HEATING AND AIR CONDITIONING - TIGHTENING TORQUES - 645CI .

Release bolt (1) and remove bracket for oil lines (2).

Scheme 104

Tightening torque, refer to 32 41 17AZ in HEATING AND AIR CONDITIONING - TIGHTENING TORQUES - 645CI .

Disconnect plug connection (2).

Release screw and nut (3).

Release bolts (4) and feed out compressor (1) downwards with refrigerant lines.

Scheme 105

Tightening torque, refer to 64 52 3AZ in HEATING AND AIR CONDITIONING - TIGHTENING TORQUES - 645CI .

Adapter sleeves (1) must not be damaged.

Scheme 106

Replace damaged adapter sleeves.

Replacement

Release screws (1) and remove refrigerant lines.

Scheme 107

Installation

Replace all sealing rings.

Tightening torque, refer to 64 52 1AZ in HEATING AND AIR CONDITIONING - TIGHTENING TORQUES - 645CI .

64 52 524 Replacing A/C system compressor (N62, with Dynamic Drive)

Necessary preliminary tasks

1. Remove front assembly underside protection, refer to «51 47 490 REMOVING AND INSTALLING / REPLACING FRONT UNDERBODY PROTECTION»(ref-202134-S02430352092005102700000) .
2. Remove alternator drive belt, refer to «11 28 010 REPLACING ALTERNATOR DRIVE BELT (N62)»(ref-202121-S12409829372005102700000) .
3. Release stabilizer on front axle, refer to «37 11 010 REMOVING AND INSTALLING/REPLACING FRONT ACTIVE STABILIZER»(ref-202133-S01514057022005102700000) .
4. Release coolant tank and place to one side

Note. The time value given for this work operation does not include drawing off, evacuating and filling the A/C system! Drain off air conditioner, refer to 64 50 009 DRAWING OFF, EVACUATING AND FILLING A/C SYSTEM (R 134A) .

Release screws (1).

Remove front panel center section (2) in direction of arrow and place to one side.

Scheme 108

Release screws (1) and feed out refrigerant lines (2).

Scheme 109

Tightening torque, refer to 64 53 6AZ in HEATING AND AIR CONDITIONING - TIGHTENING TORQUES - 645CI .

Release screw (1) and disconnect connection.

Scheme 110

Replace all sealing rings.

Tightening torque, refer to 64 53 6AZ in HEATING AND AIR CONDITIONING - TIGHTENING TORQUES - 645CI .

Disconnect plug connection (1). Release bolt and nut (3).

Release bolts (4), remove bracket for oil lines (5) and feed out compressor (2) downwards with refrigerant lines.

Scheme 111

Tightening torque, refer to 64 52 3AZ in HEATING AND AIR CONDITIONING - TIGHTENING TORQUES - 645CI .

Adapter sleeves (1) must not be damaged.

Scheme 112

Replace damaged adapter sleeves.

Installation

Before feeding in compressor, insert rear bolt (1) with shim (2).

Scheme 113

Replacement

Release screws (1) and remove refrigerant lines.

Scheme 114

Installation

Replace all sealing rings.

Tightening torque, refer to 64 52 1AZ in HEATING AND AIR CONDITIONING - TIGHTENING TORQUES - 645CI .

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

1. fouling of the refrigerant by filings/shavings (e.g. when the compressor is clamped)
2. a leaking A/C system or loss of refrigerant
3. the refrigerant circuit being opened for a period exceeding 24 hours, e.g. during repair work.

64 53 517 Replacing desiccant insert for A/C system (condenser removed)

Remove cover cap (1) from condenser (2).

Scheme 115

Press sealing cap (1) inwards and remove Seeger circlip ring (2).

Scheme 116

With assistance of a screwed-in screw (1), remove sealing cap (2) from condenser (3).

Scheme 117

Installation

Replace sealing rings (1) of sealing cap (2) and coat with suitable refrigerant oil (cf. EPC).

Scheme 118

Withdraw desiccant insert in direction of arrow from capacitor (2).

Scheme 119

64 53 518 Replacing desiccant insert for A/C system (condenser removed)

Remove protective cap (1) from condenser for A/C system (2).

Scheme 120

Press sealing cap (1) inwards and remove circlip (2).

Scheme 121

Remove protective cap (2) from condenser for A/C system (3) with aid of an inserted screw (1).

Scheme 122

Installation

Replace sealing rings (1) of sealing cap (2) and coat with suitable refrigerant oil.

Scheme 123

Remove desiccant insert for A/C system (1) in direction of arrow from condenser for A/C system (2).

Scheme 124

64 53 520 Replacing safety pressure switch

Note. The time value given for this work operation does not include drawing off, evacuating and filling the A/C system! Drain off air conditioner, refer to 64 50 009 DRAWING OFF, EVACUATING AND FILLING A/C SYSTEM (R 134A) .

Note. If A/C system is opened for more than 24 hours: Replace desiccant insert for A/C system, refer to 64 53 518 REPLACING DESICCANT INSERT FOR A/C SYSTEM (CONDENSER REMOVED) .

If necessary, release holder for lines (not illustrated).

Disconnect plug connection (1).

Release safety pressure switch (2), tightening torque, see 64 53 13AZ in 64 53 REFRIGERANT LINES AND EXPANSION VALVE .

Scheme 125

Scheme 126

64 53 551 Removing and installing / replacing condenser for A/C system

Note. The time value given for this work operation does not include drawing off, evacuating and filling the A/C system!

1. Drain off air conditioner, refer to «64 50 009 DRAWING OFF, EVACUATING AND FILLING A/C SYSTEM (R 134A)»(/bmw/m6/e63e64-2005-2010/remont/automatic-hvac-system/#heating-and-air-conditioning-repair__64-50-009-drawing-off-evacuating) .

Note. If A/C system is opened for more than 24 hours: Replace desiccant insert for A/C system, refer to 64 53 517 REPLACING DESICCANT INSERT FOR A / C SYSTEM (CONDENSER REMOVED) .

Necessary preliminary tasks

1. Remove radiator cover

Release screws (1) and remove lines (2) in direction of arrow.

Scheme 127

Installation

Tightening torque, refer to 64 53 1AZ in HEATING AND AIR CONDITIONING - TIGHTENING TORQUES - 645CI .

Pull out condenser.

Installation

Replace sealing rings (1, 2) and coat with refrigerant oil.

Scheme 128

64 53 551 Removing and installing / replacing condenser for A/C system (N62)

Note. The time value given for this work operation does not include drawing off, evacuating and filling the A/C system!

1. Drain off air conditioner, refer to «64 50 009 DRAWING OFF, EVACUATING AND FILLING A/C SYSTEM (R 134A)»(/bmw/m6/e63e64-2005-2010/remont/automatic-hvac-system/#heating-and-air-conditioning-repair__64-50-009-drawing-off-evacuating) .

Note. If A/C system is opened for more than 24 hours: Replacing drier insert for A/C system, refer to 64 53 518 REPLACING DESICCANT INSERT FOR A/C SYSTEM (CONDENSER REMOVED) .

Necessary preliminary tasks

1. Remove radiator cover

Release screws (1).

Tightening torque, refer to 64 53 1AZ in HEATING AND AIR CONDITIONING - TIGHTENING TORQUES .

Disconnect suction and pressure lines (2) and lay to one side.

Scheme 129

Lift out condenser.

Installation

Replace sealing rings and coat with suitable refrigerant oil.

See also:
• 61 35 015 REMOVING AND INSTALLING (REPLACING) CONTROL UNIT FOR CAR ACCESS SYSTEM
• 61 00 ... NOTES ON HANDLING OPTICAL FIBERS
• 61 35 ... NOTES ON ESD PROTECTION (ELECTRO STATIC DISCHARGE)
• 61 35 177 REMOVING AND INSTALLING (REPLACING) RAIN/LIGHT SENSOR
• 12 AUXIL. HEATER WITH CONTROL ELEMENTS
• 61 31 037 REMOVING AND INSTALLING/REPLACING LIGHTING CONTROL UNIT
• 61 31 079 REMOVING AND INSTALLING/REPLACING SWITCH FOR HAZARD WARNING SYSTEM/CENTRAL LOCKING
• HEATING AND AIR CONDITIONING - TECHNICAL DATA
• 13 71 020 REMOVING AND INSTALLING RIGHT INTAKE FILTER HOUSING (S85)
• 28 V-RIBBED BELT W-TENSIONER
• 47 FLOOR-LUGGAGE COMPARTMENT-ENGINE
• 31 35 000 REMOVING AND INSTALLING/REPLACING FRONT STABILIZER
• 31 12 080 REMOVING AND INSTALLING/REPLACING BOTH TENSION STRUTS
• 64 50 009 DRAWING OFF, EVACUATING AND FILLING A/C SYSTEM (R 134A)
• 64 11 916 REPLACING TEMPERATURE SENSOR FOR COLD-AIR DISTRIBUTOR
• 64 11 213 REMOVING AND INSTALLING/REPLACING HEATER - A/C UNIT FAN
• 64 11 943 REPLACING EVAPORATOR TEMPERATURE SENSOR
• 64 11 ... INSTALLING SERVODRIVE
• 64 31 061 REMOVING AND INSTALLING/REPLACING LEFT OR RIGHT MICROFILTER HOUSING LOWER SECTION
• 64 31 010 REPLACING MICROFILTER FOR INTERIOR VENTILATION
• handling R 134a refrigerant
• handling refrigerant oil
• NOTES ON REPLACING COMPRESSOR
• 64 50 ... LEAK-TESTING WITH LEAK TESTER DEVICE
• expansion valve
• handling refrigerant
• 64 31 053 REMOVING AND INSTALLING OR REPLACING FRESH AIR DUCT
• 64 11 208 REPLACING HEATER CORE
• 64 11 803 REMOVING AND INSTALLING/REPLACING SERVODRIVE FOR LEFT FRESH-AIR/REIRCULATED-AIR FLAP
• 64 53 517 REPLACING DESICCANT INSERT FOR A / C SYSTEM (CONDENSER REMOVED)
• 64 52 ... NOTES/INSTRUCTIONS ON WORKING ON AIR-CONDITIONING SYSTEMS
• 64 53 518 REPLACING DESICCANT INSERT FOR A/C SYSTEM (CONDENSER REMOVED)