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64 51 001 Cleaning evaporator

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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.
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: For more information on cleaning agent, refer to appropriate Service Information. For further information on spray apparatus, refer to Special Tools/Equipment Service Information.
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, refer to 64 11 228 REPLACING OUTPUT STAGE/SWITCH FOR HEATER - A/C SYSTEM BLOWER .

Secure adapter for special tool 64 1 457 spray lance with screws (1) of limit switch for heater - A/C fan.

Fig 1: Securing Adapter For Spray Lance
G03166135Courtesy of BMW OF NORTH AMERICA, INC.

Seal opening (B) with plug for special tool adapter 64 1 458.

Fig 2: Inserting Spray Lance
G03166136Courtesy of BMW OF NORTH AMERICA, INC.

Insert special tool spray lance 64 1 451 in direction of arrow and secure with fixture for special tool 64 1 456 spray lance.

Insert travel limiter (1) into notch (2) of special tool spray lance 64 1 451 and turn approx. 45°.

Fig 3: Inserting Travel Limiter Into Notch Of Spray Lance
G03166137Courtesy of BMW OF NORTH AMERICA, INC.

Connect special tool spray lance 64 1 451 to spray apparatus.

Fig 4: Connecting Spray Lance To Spray Apparatus
G03166138Courtesy of BMW OF NORTH AMERICA, INC.

By moving special tool spray lance 64 1 451 back and forth, spray a uniform amount of cleaning agent onto evaporator.

For information on cleaning agent and rinsing again, refer to Appropriate Service Information.

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

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.