64 51 001 Cleaning Evaporator

WARNING: This page is about a different car, the 2010 BMW 135i, 2009 BMW 135i, and 2008 BMW 135i. However, it is still accessible from the selected car via links, so may be relevant.

Special Tools Required

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 rear underbody protection. Refer to REMOVING AND INSTALLING/REPLACING REAR UNDERBODY PROTECTION .
Remove heater/air conditioner fan. Refer to REMOVING AND INSTALLING/REPLACING HEATER/AIR CONDITIONER FAN .

IMPORTANT: Use special tool 64 1 270 on right hand drive models.

Connect special tool 64 1 260 (spray lance) to spray gun (2).

Insert 64 1 260 through opening (1) into fresh air duct.

By moving spray lance (1) back and forth, spray a uniform amount of cleaning agent onto evaporator.

Fig 1: Inserting Spray Lance Into Fresh Air Duct

Courtesy of BMW OF NORTH AMERICA, INC.

64 1 260 shown on removed and cut-open heater/air conditioner:

64 1 260 in upper end position (1)
64 1 260 in lower end position (2)

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

Fig 2: Identifying Spray Lance Move Position

Courtesy of BMW OF NORTH AMERICA, INC.

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.