64 51 001 Cleaning evaporator

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2003 BMW 540i, 2002 BMW 540i, 2001 BMW 540i, 2000 BMW 540i, and 1999 BMW 540i. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

641451
641456
641457
641458

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.

CAUTION: To avoid dirtying vehicle interior:

Close all air vents.
Switch air conditioner 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.

NOTE: Make sure the cleaning agent can escape freely from the drain openings. If necessary, remove rear underbody protection.

Remove Limit Switch For Heater - A/C Fan.

Seal off opening (A) of adapter for spray lance 641457 with plug 64158.

Clip adapter for spray lance 641457 into opening of limit switch for heater - A/C fan.

Installation:

Make sure adapter for spray lance 641457 is correctly seated in guides (1).

Fig 1: Removing Sealing From Spray Lance Adapter Opening

Courtesy of BMW OF NORTH AMERICA, INC.

Insert spray lance 641451 in direction of arrow and secure with fixture for spray lance 641456.

Fig 2: Inserting Spray Lance And Securing With Fixture

Courtesy of BMW OF NORTH AMERICA, INC.

Connect spray lance 641451 to spray apparatus.

By moving spray lance 641451 back and forth, spray a uniform amount of cleaning agent onto evaporator.

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

Fig 3: Connecting Spray Lance To Spray Apparatus

Courtesy of BMW OF NORTH AMERICA, INC.

Set heater - A/C to footwell ventilation and fresh air operation. Open windows/doors.

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

NOTE: In order to eliminate the last remnants of cleaning agent, repeat this procedure shortly before hand over to the customer.