Left Retaining Plate With Left Footwell Door Motor (V108) and Left Center Vent Motor (V110)
Left Retaining Plate with Left Footwell Door Motor (V108) and Left Center Vent Motor (V110)
The Left Footwell Door Motor and the Left Center Vent Motor are installed in the "Comfort" A/C system.
• The mounting plate with the Left Footwell Door Motor and the Left Center Vent Motor is installed only on vehicles equipped with the "Comfort" A/C system.
• Right Footwell Door Motor mounting plate and Right Center Vent Motor disassembling and assembling, refer to => [ Left Retaining Plate with Left Footwell Door Motor (V108) and Left Center Vent Motor (V110) ] Left Retaining Plate With Left Footwell Door Motor (V108) and Left Center Vent Motor (V110).
• 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 with 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.
• Depending on the production date, there are different versions of the levers and connections on the A/C unit. Refer to => [ Air Conditioner, Levers and Connecting Elements ] Air Conditioner, Levers and Connecting Elements and the Electronic Parts Catalog (ETKA).
Removing
- Move the driver seat as far back as possible.
- Turn off the ignition.
- Remove the storage compartment under the dash panel on the driver side.
- Remove the left footwell vent (driver side). Refer to => [ Left Footwell Vents ] Left Footwell Vents.
- Remove the steering column.
- Remove the pedal assembly and accelerator pedal module.
• The following illustrations show the arrangement of the control motors and their mounting plates on the left side of the A/C with the air channel leading to the left dash panel vent - A - removed for clarity.
• The air guide channel leading the left instrument panel vent - A - is secured by an expanding clip or a screw - B - onto the instrument panel crossmember - C -; the expanding clip or the screw can only be removed when the outer instrument panel shell is removed.
- Mark the connector - A - (to the Left Center Vent Motor), - B - (to the Defroster Door Motor (V107) ), - C - (to the Left Footwell Door Motor) and - D - (to the Rear Temperature Door Motor (V137) ) (to prevent confusing them).
- Disconnect the connectors - A - up to - D -.
- Loosen the wiring harness - E - from the mounting points on the mounting plate - F -.
- Carefully disconnect the connector rods - A - through - D - from the levers on each door.
• The connecting rods - A - through - D - are clipped on to the levers; unclip them carefully so that the lever does not get damaged.
• Depending on the production date, there are different versions of the levers and connections on the A/C unit. Refer to => [ Air Conditioner, Levers and Connecting Elements ] Air Conditioner, Levers and Connecting Elements and the Electronic Parts Catalog (ETKA).
- Remove bolts - E -.
- Remove the mounting plate - F - (together with the control motors, the levers, the cam plates and the connector rods) from the A/C.
Installing
Installation is carried out in the reverse order while observing the following.
- Apply a small quantity of grease (G 000 150) to the cam plate guides as well as to the pins at the door levers. Refer to Electronic Parts Catalog (ETKA).
- Make sure the levers, cam plates and connector rod mounting plates - A - are assembled correctly. Refer to => [ Left Retaining Plate with Left Footwell Door Motor (V108) and Left Center Vent Motor (V110) ] Left Retaining Plate With Left Footwell Door Motor (V108) and Left Center Vent Motor (V110).
- When installing the mounting plate- A -, insert the mounting plate pins - B - into the brackets - C - and the cam plate pins - D - and - F - into the brackets - E -.
- When installing the mounting plate - A - insert the lever pins - G - into the guiding groove on the cam plates - F -.
• When inserting, make sure that the cam plate stop - C - is not in area - F - (between both stops on the A/C - D - and - E -).
• The cam plate - A - actuates the door for the left indirect ventilation (driver's side) via the lever - B -.
- Install the screws - E -.
- Carefully connect the various connector rods - A - through - D - to the lever of each door.
- Route the wiring harness - E - as shown and secure it at the mounting points to the mounting plate - F -.
- Connect the connectors - A - through - D - according to the markings.
- Check the wiring harness routing - E - so that it cannot come in contact with any moving parts (for example, levers).
- 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".
- Adjust and check the air flow direction on the different air ducts via Climatronic control module, if the quantity of air actually changes at each setting.