Right Temperature Door Motor (V159)
Right Temperature Door Motor (V159)
• The Right Temperature Door Motor is installed only on vehicles equipped with the "Comfort" A/C system.
• Currently in this vehicle, all motors are identical in construction. 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.
Removing
- Switch on the ignition.
- Adjust the air flow direction from the instrument panel vents, driver and passenger side, on the Climatronic control module (J255).
• In the "air to the dash panel vents" setting, the Right Center Vent Motor (V111) - B - moves the cam plate - A - in a position so that the screw - C - is accessible. If the Right Center Vent Motor - B - does not move the cam plate - A - into the desired position, then remove the control motor if necessary. Refer to => [ Right Center Vent Motor (V111) ] Right Center Vent Motor (V111) and move the curved washer by hand.
- Move the passenger seats as far back as possible.
- Turn off the ignition.
- Remove the air intake housing. Refer to => [ A/C Unit Air Intake Housing ] A/C Unit Air Intake Housing.
- Mark the connector - D - (to prevent confusing it with other connectors).
- Disconnect the connector - D -.
- Remove the screws - C - and - E -.
- Loosen the pin - A - (on the control motor bracket - C -) from the toothed segment - B - (temperature door shaft) and remove the bracket - C - (with the control motor) in the direction of the arrow.
- Remove the screws - A - and separate the control motor - B - from the bracket - D -.
- Remove the toothed gear - C - from the control motor shaft - D -.
Installing
Installation is carried out in the reverse order while observing the following.
- Mount the toothed gear - C - on the shaft - E - of the control motor - B -.
• The control motor does not have a stop, therefore the toothed gear - C - can be mounted on the control motor shaft at any position.
- Turn the toothed gear - B - (in the temperature door shaft) all the way to the stop into the shown position (by turning in the direction of the arrow).
- Insert the guide - D - (on the bracket - C - with the control motor) into the bracket - E - (on the A/C unit).
- Push the bracket - C - opposite the direction of the arrow to the toothed segment - B - and insert the pin - A - (on the control motor bracket) into the toothed segment - B - (temperature door shaft).
• The control motor and the toothed gear - C - do not have a stop; therefore the toothed gear - C - can be joined to the toothed segment - B - (temperature door shaft) in any position.
- Remove the screws - C - and - E -.
- Connect the connector - D -.
- Install the wiring harness so that it cannot come in contact with any moving parts (such as the actuating arm).
- Install the removed parts in the opposite order.
- Switch on the ignition.
- 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.
- Check the Climatronic Control Module DTC memory and erase any displayed malfunction if necessary using the Vehicle diagnostic tester in "Guided Fault Finding".