64 51 002 Cleaning evaporator (automatic climate control)

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
641452
641453
641454
641455
641456

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 side carpet on left. See 51 16 200 REMOVING AND INSTALLING ODDMENTS TRAY .

Repeat repair only:

Remove sealing cap (1) from hole in A/C housing (2).

Installation:

Replace sealing cap.

Fig 1: Removing Sealing Cap From A/C Housing Hole

Courtesy of BMW OF NORTH AMERICA, INC.

First repair only:

CAUTION: To avoid swarf in A/C housing:
Drill holes at very low drilling speeds.
Carefully withdraw switched off drill together with swarf from holes.

Place drilling template 641452 as illustrated on A/C housing (1) and predrill with 6 mm dia. drill bit.

Fig 2: Attaching Drilling Template On A/C Housing

Courtesy of BMW OF NORTH AMERICA, INC.

Remove drilling template 641452 and drill out hole with center bit 641453 to 20 mm dia.

Installation:

Seal hole with sealing cap.

All:

Attach guide for spray lance 641454 as illustrated into hole in A/C housing (1).

Fig 3: Attaching Guide For Spray Lance

Courtesy of BMW OF NORTH AMERICA, INC.

Attach positioner for spray lance 641455 as illustrated to guide for spray lance 641454 and secure with knurled nut (1).

Fig 4: Attaching Positioner For Spray Lance

Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 5: 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 6: 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 handover to the customer.