Heater and A/C System Controls

Heater and A/C System Controls

Heater controls, Heater Control Module (J65) without A/C system

A/C system controls, A/C Control Module (J301) with manually regulated A/C system

• Heater Control Module (J65) ( A/C Control Module (J301) ) - A - is available in different versions (with and without heated seat adjusters ( Driver Heated Seat Adjuster (E94) and Front Passenger Heated Seat Adjuster (E95) - C -). Refer to Electronic Parts Catalog (ETKA).






• The belt pulley will control 2 belts. Only A/C control modules (J301) with part number 8P0 820 047, starting with index letter D may be installed in a vehicle with a manually controlled A/C system. Refer to Electronic Parts Catalog (ETKA).

• The heater controls ( heater control module (J65) ) - A - do not have a DTC memory (Guided Fault Finding is not possible) and are not connected to the CAN-Bus system.






• A/C Control Module - A - is equipped with DTC memory (Guided Fault Finding is possible) and connected to the CAN-Bus system, therefore check DTC memory if necessary before removing using Vehicle diagnosis, testing and information system (VAS5051B) in "Guided Fault Finding" function.






Removing

- Remove radio or radio navigation system.

- Remove the radio or radio navigation system depending on the center console grab handle.

• There are different versions of the center console grab handle (for example, with and without leather). If it has leather, the space to remove the trim - A - or the actuator may not be big enough and the grab handle could get damaged.






- Pull off trim panel for heater controls - A - (A/C system controls).

• If necessary, lift the trim carefully using a small screwdriver

- Remove bolts - B - and - C -.

- Disengage heater control module (A/C control module) - D - from the center console.

- Disengage harness connector release catch - A - by pulling in direction of arrow.






- Disengage harness connector release catch - B - to connector - arrow - and disconnect connector - C -.

- Disengage harness connector release catch - D - and disconnect connector - D -.

- Disengage the connector - C - (only on the A/C control module (J301) ) in the same way as connector - B - and disconnect it.






Installing

Installation is carried out in the reverse order while noting the following:

- Both shafts of Heater control module (J65) - C - can be slid into mounts of base plate - D - only in one position, therefore turn rotary switches - A - and - B - for as long until position of both shafts align with position of shaft mounts in base plate.






- Air distribution shafts of A/C Control Module (J301) - C - can be slid into mounts of base plate - D - only in one position, therefore turn rotary switch - B - for as long until position of both shafts align with position of shaft mounts in base plate.

- Locking mechanisms of adjusting lever - D - and - F - are installed in base plate of heater controls - A - (for production, so that setting is not offset during delivery), these locking mechanisms are released via pin - C - (for air distribution) and - E - (for temperature setting, only on version for vehicles without A/C system) of Heater Control Module (J65) ( A/C Control Module (J301) ) - B - when connecting. If pins - C - (and - E - on version for vehicles without A/C system) are not inserted correctly, the corresponding rotary switch can only be moved with difficulty or makes clicking sounds when turning.