64 51 001 Cleaning evaporator

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Special tools required:

64 1 490

NOTE: For information on cleaning agent and rinsing again, refer to Service Information.

For information on spraying equipment, refer to Service Information, Special Tools and Equipment.

WARNING: When handling cleaning agent, observe following protection measures:
Wear protective rubber gloves and protective goggles.
If cleaning agent comes into contact with eyes or skin, wash immediately with lots of water.

IMPORTANT: To avoid dirtying vehicle interior:

Close all air vents.
Switch heating - A/C system to recirculated-air mode.
Cover carpet in work area.

Recycling:

Carry out the cleaning operation in a suitable washing bay as the emerging cleaning agent escapes through the drain openings in the transmission tunnel.

After completing cleaning, allow car to drip-dry for approx. 5 minutes.

Necessary preliminary tasks:

Remove controller for heater - A/C fan, refer to 64 11 225 REPLACING CONTROLLER FOR HEATER - A/C FAN

Install special tool 64 1 490 (spraying equipment).

Secure guide (1) in place of controller with screw (2).

Fig 1: Cleaning Evaporator

Courtesy of BMW OF NORTH AMERICA, INC.

Tightening torque 64 11 3AZ. Refer to HEATING AND AIR CONDITIONING - TIGHTENING TORQUES .

Insert spray lance (2) through guide opening (1).

By moving spray lance (2) back and forth, spray a uniform amount of cleaning agent onto evaporator.

NOTE: Set heating - A/C system to footwell ventilation and fresh-air mode. Open windows/doors.

Start car and run heating - A/C system at maximum fan power for approx. 5 minutes in order to dry evaporator.

In order to eliminate the last remnants of cleaning agent, repeat this procedure shortly before handover to the customer.