6451001 Cleaning evaporator

WARNING: This page does not describe the selected car, but rather 13 other vehicles, including the 2011 BMW 328xi, 2011 BMW 328i, 2011 BMW 323i, 2010 BMW 335xi, and 2010 BMW 335i. However, it is still accessible from the selected car via links, so may be relevant.

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
Remove HEATER/AIR CONDITIONER FAN

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

Insert spray lance 64 1 260 SPRAYER 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: Moving Spray Lance Back And Forth

Courtesy of BMW OF NORTH AMERICA, INC.

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

Spray lance 64 1 260 SPRAYER in upper end position (1)
Spray lance 64 1 260 SPRAYER in lower end position (2)

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

Fig 2: Moving Spray Lance Back And Forth

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.