64 11 206 Removing and installing/replacing heater
WARNING: This page is about a different car, the 2010 BMW M3, 2009 BMW M3, and 2008 BMW M3. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
Risk of injury!
Refrigerant circuit is under high pressure!
Avoid contact with refrigerant and refrigerant oil.
Follow instructions for working on cooling system . See 17 00 ... INSTRUCTIONS FOR WORKING ON COOLING SYSTEM .
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
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
- Remove intake air manifold . See 11 61 050 REMOVING AND INSTALLING AIR INTAKE MANIFOLD (S65) .
- Remove secondary-air pump . See 11 72 000 REMOVING AND INSTALLING/REPLACING SECONDARY-AIR PUMP (S65) .
- Remove lower section of steering spindle . See 32 31 070 REMOVING AND INSTALLING / REPLACING LOWER SECTION OF STEERING SPINDLE .
- Remove right suspension cross-brace . See 51 71 345 REMOVING AND INSTALLING/REPLACING LEFT (OR RIGHT) SUSPENSION CROSS-BRACE .
- Remove expansion valve
- Remove instrument panel trim . See 51 45 030 REMOVING AND INSTALLING INSTRUMENT PANEL TRIM .
- Remove complete steering column . See 32 31 090 REMOVING AND INSTALLING/REPLACING STEERING COLUMN .
- Remove air ducts .
- Remove carrier for instrument panel . See 51 45 ... REMOVING AND INSTALLING CARRIER FOR INSTRUMENT PANEL .
Release cap (1) on bulkhead and release screw underneath.
Tightening torque 64 11 1AZ , see HEATER WITH OPERATION .
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.
IMPORTANT:
Protect working area (1) against escaping coolant.
Remove heater (2) with a 2nd person helping from vehicle.
Installation:
Make sure heater is correctly seated.
Make sure condensate drain (2) is correctly seated in grommet (1).
After installation:
- Vent cooling system and check for water leaks . See 17 00 009 CHECKING COOLING SYSTEM FOR LEAKS (S65) .
- Evacuate and fill A/C system