Base Plate For Heater and A/C System Controls

Base Plate for Heater and A/C System Controls

• Base plate - C - is different between vehicles without A/C system (with a control for Bowden cable to temperature door - E -) and with manually regulated A/C system (without a Bowden cable control - E -, the temperature door is moved by a control motor). Refer to Electronic Parts Catalog (ETKA).






• A step-up gear for operating the flexible shaft - H - (for air distribution) is installed in base plate - C -. The flexible shaft - H - rotates 2 times for one switch rotation via the step-up gear on heater / on heating & A/C unit and on base plate of heater / A/C system controls - C -. Refer to => [ Air Distribution Flexible Shaft ] Air Distribution Flexible Shaft.

Removing

- Bring rotary switch for temperature preselect - A - into position "cold stop" (only on vehicles without A/C system).






- Remove the glove compartment.

- Remove the front passenger footwell vent.

- Remove Heater Control Module (J65) ( A/C Control Module (J301) ). Refer to=> [ Heater and A/C System Controls ] Heater and A/C System Controls.

- Remove bolts - A -.






- Remove the mounting frame - B -.

- Reach into center console and release lug for flexible shaft - H -.

- Reach into center console and disengage locking mechanism - D - of Bowden cable sheath - E - and remove Bowden cable sheath from mount (only present on vehicles without A/C system).

- Reach into center console and release ball on Bowden cable - F - from operating lever - G - (only present on vehicles without A/C system).






- Remove base plate from center console - C -

Installing

• A set of gears is installed in base plate for heater / A/C - C - controls and in heater / in heating & A/C unit. Flexible shaft - H - rotates twice for one rotation of air distribution rotary button.






• Since door positions are not visible with instrument panel installed, therefore pay attention to position of air distribution doors when connecting flexible shaft - H - to base plate.

- Connect Bowden cable for temperature door onto base plate - A - (only present on vehicles without A/C system).

- Connect base plate - D - to Heater Control Module (A/C Control Module) - C -. Refer to=> [ Heater and A/C System Controls ] Heater and A/C System Controls.






- Bring rotary switch - D - into the position in which the flexible shaft - C - can be inserted into mount of base plate - A -.






- Insert flexible shaft - C - into base plate - A -

- Bring rotary switch - D - into "air in footwell" position (as shown).

- Check position of right footwell door - E -, air guide channel - F - must be opened completely.

- Air guide channel - F - is closed

- Release flexible shaft - C - from base plate - A -

- Turn rotary switch - D - into "air distribution to front windshield" position (approximately 180°).

- Insert flexible shaft - C - into base plate - A -

- Bring rotary switch - D - into "air in footwell" position (as shown).

- Check position of right footwell door - E -, air guide channel - F - must be opened completely.

The rest of the installation is performed in the reverse order of removal.