Recirculation Door Motor (V113)

Recirculation Door Motor (V113)

• Perform Basic Setting of A/C system after installing the control motor. Refer to the Vehicle diagnostic tester in "Guided Fault Finding".

• Using the functions "Output diagnostic test mode" and "Basic setting", the activation of A/C system electrical components can be tested if necessary (for example allocation test). Refer to the Vehicle diagnostic tester in "Guided Fault Finding" function.

• In the event of problems with moisture in passenger compartment, additionally check recirculated-air door (must close completely).

Removing

- Move the passenger seats as far back as possible.

- Turn off the ignition.

- Remove the glove compartment.

- Loosen the wiring harness - E - from the air intake housing.






- Remove bolts - B -.

- Disconnect the control motor shaft- C - from the air recirculation door shaft - D -.

- Mark the connector - A - if necessary (to rule out an interchange in the event several connectors are disconnected at the same time).

- Disconnect connector - A -.

Installing

Installation is carried out in the reverse order while observing the following.

- Connect connector - A -.

- Insert the control motor shaft - C - into the air recirculation door shaft - D -.

• The control motor does not have a stop; therefore the control motor shaft - C - can be inserted into the air recirculation door shaft - D - at any position.

- Install the bolts - B -.

- Install the wiring harness - E - so that it cannot come in contact with any moving parts (e.g. the actuating arm).

- Install the removed parts in the opposite order.

- Perform a basic setting and the output Diagnostic Test Mode (DTM) on the A/C system using the Vehicle diagnostic tester in "Guided Fault Finding".

• On this vehicle, the control motors are equipped with electronics. During the first basic setting, a new control motor learns its position on the air conditioner and can then be controlled by the Climatronic Control Module (J255) (currently all control motors are identical). Refer to the Vehicle diagnostic tester in "Guided Fault Finding".

• During the basic setting, the control motors are assigned and adapted corresponding to the switching sequence of the wiring. If this sequence does not conform the specification, the control motors will adapt incorrectly and the door control will be wrong. Refer to => [ A/C Control Motor Block Diagram ] A/C Control Motor Block Diagram.

- Switch on the ignition.

- Check the Climatronic Control Module (J255) DTC memory and erase any displayed malfunction if necessary using the Vehicle diagnostic tester in "Guided Fault Finding" function.