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

WARNING: This page is about a different car, the 2005 BMW 760Li, 2004 BMW 760i, 2004 BMW 760Li, and 2003 BMW 760Li. 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. 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: 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) .

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. Refer to 64 53 551 REMOVING AND INSTALLING/REPLACING CONDENSER FOR A/C SYSTEM (AUTOMATIC A/C HIGH) . Comply with notes and instructions on handling fiber-optic cables. Refer to 61 00... NOTES ON HANDLING OPTICAL FIBERS .

Necessary Preliminary Tasks:

Disconnect battery negative lead. Refer to 61 20 900 DISCONNECTING AND CONNECTING BATTERY NEGATIVE LEAD .
Remove heater. Refer to 64 11 205 REMOVING AND INSTALLING/REPLACING HEATER (BASIS AUTOMATIC A/C) .
Remove heating element. Refer to 64 11 208 REPLACING HEATING ELEMENT (HIGH AUTOMATIC A/C) .

After installation:

Venting cooling system and checking for water leaks. Refer to 17 00 009 CHECKING COOLING SYSTEM FOR LEAKS (N73) .

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: Removing Retainers

G03294220

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 Lugs

G03294221

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: Removing Control Lever For Fresh Air Flap

G03294222

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: View Of Control Lever Guide

G03294223

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1).

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

Fig 5: Removing Shutter Cassette

G03294224

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1).

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

Fig 6: Removing Cover Expansion Valve

G03294225

Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect plug connection (1).

Unclip linkage (2 3) in direction of arrow.

Fig 7: Disconnecting Plug Connection

G03294226

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

G03294227

Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 9: Removing Retainers From Heater Housing

G03294228

Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 10: View Of Evaporator

G03294229

Courtesy of BMW OF NORTH AMERICA, INC.