Front A/C Display Control Head (E87) with Climatronic Control Module (J255), Functions

Front A/C Display Control Head (E87) with Climatronic Control Module (J255), Functions

• Not all the buttons are used, depending on the vehicle equipment level and may vary in location.






1 Left Temperature Display

• Shows the temperature set for the driver side.

2 Button For Left Seat Heating

• LED is on when the setting is active.

• The seat heating as 3 settings. An LED indicates which setting is selected.

3 Windshield Air Distribution Button

• LED is on when the setting is active.

4 Center Air Distribution Button

• Air distribution in the upper body above the center air vents.

• LED is on when the setting is active.

5 Lower Air Distribution Button

• Air distribution in the footwell.

• LED is on when the setting is active.

6 Air Recirculation Button

• LED is on when the setting is active.

• Manual and automatic recirculating air mode.

• Press the button for recirculating air function to prevent polluted air from entering interior.

• Recirculating air is switched on automatically under the following conditions:

• When the windshield washer system is operated.

• When Air quality sensor (G238) is activated.

• When the reverse gear is engaged (this function is only active for 2 minutes after the engine is started).

• Blower speeds on A/C Control Head (E87).

• A/C Control Head (E87) "OFF"

7 Button For The Right Seat Heating

• LED is on when the setting is active.

• The seat heating as 3 settings. An LED indicates which setting is selected.

8 Right Temperature Display

• Shows the temperature set for the front passenger side.

9 Right Temperature Control Knob

• The selected temperature will be shown in the display.

10 AC Button

• LED is on when the setting is active.

• If the AC button is deactivated, the A/C compressor is set to almost zero delivery. If the AUTO button is activated, the heating and ventilation mode continues to be controlled electronically.

11 Button for MAX AC

• LED is on when the setting is active.

• Run A/C system with MAX A/C.

12 Button for Sync

• LED is on when the setting is active.

• Current driver side temperature control supersedes that of the front passenger side.

13 Control For Blower Adjuster

• By turning the knob, the blower speed can be individually adjusted.

• If the blower speed is manually adjusted, the function AUTO is automatically deactivated.

14 AUTO Button

• LED is on when the setting is active.

• In automatic mode the Climatronic maintains the selected vehicle temperature automatically. The air temperature, the blower speed and the air distribution are adjusted automatically.

15 OFF Button

• Press the OFF button to turn off the heater and A/C.

16 Left Temperature Control Knob

• The selected temperature will be shown in the display.

17 Rear Window Defogger Button

• LED is on when the setting is active.

• It only works when the engine is running and turns off on its own after 10 minutes.

18 Max Defrost Button

• Air sucked in from the outside is directed to the windshield causing the recirculating air mode to shut off automatically.

• In order to remove fog from front windshield as quick as possible, the air must be warmed to a temperature over 1.5 °C (+ 35 °F) and the blower must reach a high blower speed.