64 51 591 Removing And Installing/Replacing Evaporator (High Automatic A/C)

WARNING: This page is about a different car, the 2008 BMW Alpina and 2007 BMW Alpina. However, it is still accessible from the selected car via links, so may be relevant.

WARNING: Avoid contact with refrigerant and refrigerant oil.
Follow safety instructions for handling refrigerant R 134a . See 64 50 ... INSTRUCTIONS FOR HANDLING REFRIGERANT R 134A .
Follow safety instructions for handling refrigerant oil . See 64 50 ... INSTRUCTIONS FOR HANDLING REFRIGERANT OIL (FOR REFRIGERANT R 134A) .

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

IMPORTANT: Risk of damage!
Restart engine only when A/C system has been correctly filled.

NOTE: If A/C system is opened for more than 24 hours: Replace desiccant insert for A/C system . See 64 53 551 REMOVING AND INSTALLING / REPLACING CONDENSER FOR A / C SYSTEM (N62) .
Comply with notes and instructions on handling fiber-optic cables . See 61 00 ... NOTES ON HANDLING OPTICAL FIBERS .

Necessary preliminary tasks:

Disconnect battery negative lead . See 12 00 ... INSTRUCTIONS FOR DISCONNECTING AND CONNECTING BATTERY .
Remove heater . See 64 11 205 REMOVING AND INSTALLING/REPLACING HEATER .
Remove heating element . See 64 11 208 REPLACING HEATING ELEMENT (HIGH AUTOMATIC A/C) .

After installation:

Venting cooling system and checking for water leaks

IMPORTANT: Do not bend cooling fins.
If necessary, clean/align cooling fins with slat comb.

Remove retainers (1).

Unlock retaining lugs (2) in direction of arrow and remove defroster vents (3) towards top.

Fig 1: Unlocking Retaining Lugs And Defroster Vents

G04768958

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Check retaining lugs (1) of defroster vent (2), replace defroster vent if necessary.

Retaining lugs (1) of defroster vents must snap audibly into place.

Fig 2: Identifying Retaining Lug And Defroster Vent

G04768959

Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect plug connection (1).

Release screws (2).

Unclip control lever for fresh air flap (3).

Feed out servomotor bracket (4).

Fig 3: Uncliping Control Lever For Fresh Air Flap

G04768960

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Guide (1) of control lever for recirculating air flap (2) must be exactly seated in mounting (3) of shutter cassette (4).

Fig 4: Identifying Guide, Shutter Cassette, Air Flap And Mounting

G04768961

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1).

Feed out shutter cassette (2) in direction of arrow.

Fig 5: Feeding Out Shutter Cassette

G04768962

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1).

Unlock arrester hook (2) and remove cover for expansion valve (3).

Fig 6: Unlocking Arrester Hook And Cover For Expansion Valve

G04768963

Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect plug connection (1).

Unclip linkage (2 3) in direction of arrow.

Fig 7: Uncliping Linkage

G04768964

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1).

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

Fig 8: Removing Upper Housing Section Of Heater

G04768965

Courtesy of BMW OF NORTH AMERICA, INC.

Detach retainers (1) from heater housing (2).

Fig 9: Identifying Retainers And Heater Housing

G04768966

Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 10: Pulling Out Evaporator Of Heater Housing

G04768967

Courtesy of BMW OF NORTH AMERICA, INC.