Fresh/Recirculated Air Door Motor V154

Fresh/Recirculated Air Door Motor V154

Removing

• The fresh/recirculating air door motor can only be removed without difficulty in "fresh air mode stop" and installed only in this position. If motor remains standing in a different position and can no longer be moved electrically into "fresh air mode stop" position, it can only be pulled off and removed with difficulty.

• Position of fresh/recirculating air door must not be changed.

- Turn on the ignition and wait until the fresh/recirculating air door motor has reached its end position "fresh air mode".

- Switch off the ignition.

- Remove the glove compartment.

- Open the retainers - B - and - C - and remove the bracket - A -.






- Disconnect the connector from the motor - B -.






- Remove the fresh/recirculating air door motor - B - from the air intake shroud in - direction of arrow -.

• Connection between control motor toothed gears and fresh/recirculating air door is designed so that the control motor can only be removed in the "fresh air mode" position without difficulty (intake opening for recirculating air mode is sealed via the fresh/recirculating air door - A -).

• If motor is found in a different position and can no longer be moved, motor cannot be simply pulled off, rather it must be loosened first with great force from mounting points - C -, ensure that toothed gear - D - is not damaged when doing this.

Installing

• Motor as replacement part is delivered in the "fresh air mode" position, only when toothed gear - A - contacts stop - B - can it then be connected onto toothed gear of fresh/recirculating air door. If a motor was removed in a different position or activated in the removed state, it cannot be installed.

• If toothed gear - A - of motor does not stand at stop - B - "fresh air mode", proceed as follows:

- Connect the motor to the vehicle wiring harness.

- Switch on the ignition.






- Wait until the toothed gear - A - on the motor reaches the "fresh air mode" stop - B -.

- Switch off the ignition.






- Reach into intake opening for recirculating air mode and move the fresh/recirculating air door - A - into the "fresh air mode" position (intake opening for recirculating air mode is closed).

- Insert the motor - B - into mounts - C - in opposite direction of arrow and onto toothed gear - D -.






• So that toothed gear on motor - A - can be slid on toothed gear of fresh/recirculating air door, short tooth - C - of motor toothed gear must align with short tooth interval - D - of toothed gear on shaft of back pressure door - D -.

- After installing the control motor, install the toothed gear - 1 - onto the fresh/recirculation air door shaft again.






- Install the wiring harness so that it cannot come in contact with any moving parts (for example, the lever on the motor).






- Install the bracket - A -. Make sure the guide - D - fit correctly in the air intake shroud - E - and the bracket locks into both retainers - B - and - C -.

• Position of motor (and of door) is no longer visible with glove compartment installed, therefore it is sensible to check its function before installing glove compartment.

• If both toothed gears are assembled in incorrect position, fresh/recirculating air door does not reach its two end positions or motor does not run cleanly and without hitching.

- Install the parts in reverse order of removal.

• After installing the fresh/recirculating air door motor, the function of the recirculating air door must be checked.

- Checking: use the Vehicle Diagnostic Tester.

- Replacing: initiate the basic setting using the Vehicle Diagnostic Tester. Refer to => [ Climatronic Components, Checking and Adjusting ] Climatronic Components, Checking and Adjusting.