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.