Mirror heating

The heat output (percentage switch-on time) is controlled automatically. The heat output depends on ambient temperature and wiper intensity. If the wipers are operating, the heat output is increased to ensure reliable defrosting of the mirror glass.

Mirror heating is operational from terminal 15 ON.

Mirror heating is deactivated under the following conditions:

• Terminal 50 ON (load cut-off)
• Supply voltage below 10.8 V (switch-on at 11.6 V)
• Activation of an exterior mirror memory position

With the independent heating option:

The exterior mirrors are also heated when the independent heating is switched on even if terminal 15 is off.

Signal path up to 09/2005:

Independent heating control unit -> K-CAN -> Safety and gateway module (SGM) -> byteflight -> Door modules -> Exterior mirrors.

Signal path from 09/2005:

Control unit independent heating -> K-CAN -> Body gateway module (SGM) -> Exterior mirrors.