BMW 7 Owners & Service Manuals
BMW 7 Series (F01/F02) 2008-2015 Service Manual / Heating And Air Conditioning / Heater With Operation / Removing And Installing/Replacing Auxiliary Water Pump

BMW 7 Series: Removing And Installing/Replacing Auxiliary Water Pump

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:

  • Remove FRONT WHEEL ARCH COVER
  • Disconnect coolant hoses.

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).

Heater With Operation
Fig. 16: Identifying Auxiliary Water Pump, Coolant Hoses, Bracket And Spring Clamps

After Installation note:

  • FILL COOLING SYSTEM
  • CHECK COOLING SYSTEM FOR LEAKS

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:

  • Drain off AIR CONDITIONING SYSTEM
  • Remove ALL LUGGAGE COMPARTMENT TRIM PANELS or from 11/2010, remove luggage compartment partition wall

F03 only:

  • If necessary, remove cool box

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.

Heater With Operation
Fig. 17: Identifying Expansion Valve, Refrigerant Lines And Screws

Heater With Operation
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).

Heater With Operation
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.

Heater With Operation
Fig. 20: Identifying Treat Burr On Punched Body Passage And Gaiter

After installation

  • EVACUATE AND FILL HEATING AND AIR CONDITIONING SYSTEM

Replacement

  • Modify EVAPORATOR
  • Modify EXPANSION VALVE
  • Modify all actuator drives.

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