64 51 001 Cleaning evaporator

WARNING: This page is about a different car, the 2011 BMW M3, 2010 BMW M3, 2009 BMW M3, and 2008 BMW M3. 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

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

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.

Fig 1: Connecting Special Tool 64 1 260 To Spray Gun

Courtesy of BMW OF NORTH AMERICA, INC.

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

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)

Fig 2: Moving Spray Lance Back And Forth
Courtesy of BMW OF NORTH AMERICA, INC.

By moving spray lance 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.