Notes
WARNING: Danger of scalding! Only perform this work after engine has cooled down.
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 work:
Unlock spring clamps (1) with special tool 17 2 050.
Pull off coolant hoses (2) from auxiliary water pump (3).
Unlock associated plug connection and disconnect.
Pull off auxiliary water pump (3) from bracket (4).
Installation note: Make sure auxiliary water pump (3) is seated correctly in bracket (4).
Fig. 16: Identifying Auxiliary Water Pump, Coolant Hoses, Bracket And Spring
Clamps
After Installation note:
REMOVING AND INSTALLING/REPLACING COMPLETE REAR AIR CONDITIONER
Notes
WARNING: Danger of injury! Refrigerant circuit is under high pressure! Follow safety information for handling R 134a tetrafluorethane refrigerant.
Avoid contact with refrigerant and refrigerant fluid.
Follow safety information for HANDLING REFRIGERANT FLUID.
IMPORTANT: Risk of damage! Restart engine only when air conditioning system has been correctly filled.
Follow NOTES for opening and replacing parts in refrigerant circuit.
If air conditioning system is opened for more than 24 hours: Replace desiccant insert for A/C system.
To ensure that the refrigerant is almost completely drained from the rear air conditioner: In the diagnosis system under Service functions carry out the instruction for "Draining/filling refrigerant circuit".
Necessary preliminary work:
F03 only:
Release screws (1).
Tightening torque 64 53 5AZ.
Carefully detach refrigerant lines (3) downwards from expansion valve (2).
Installation note: Replace sealing rings.
Use special tool 00 9 030 to mount sealing rings without damaging them.
Fig. 17: Identifying Expansion Valve, Refrigerant Lines And Screws
Fig. 18: Removing Rear Air Conditioner
Unfasten plug connection (1) and disconnect.
Release screws (4).
Tightening torque 64 11 1AZ.
Lift out expanding rivet (6).
Carefully remove rear air conditioner (2) in direction of arrow.
In so doing, feed first air duct (3) then air duct (5) out of respective connecting pieces.
Installation note: Make sure retaining lug (1) is correctly engaged in guide (2) on rear air conditioner (3).
Fig. 19: Identifying Rear Air Conditioner, Retaining Lug And Guide
Installation note: Treat burr on punched body passage (2) with underbody protection*.
If necessary, renew sealant* on gaiter (1).
*Sourcing reference: refer to BMW Parts Department.
Fig. 20: Identifying Treat Burr On Punched Body Passage And Gaiter
After installation
Replacement