Operation CHARM: Car repair manuals for everyone.

Component Arrangement For Auxiliary Heater

Component arrangement for auxiliary heater






a - CAN Infotainment
b - W bus (internal data bus auxiliary heater)

1 - Antenna for radio remote control
- Installed in rear spoiler

2 - Receiver for radio remote control
- Installed in rear interior light area

3 - Metering pump (fuel pump)
- Installed in cardan tunnel before tank

4 - Circulating pump (auxiliary coolant pump)
5 - Auxiliary heater (with integrated control unit)
6 - 3/2-way valve
7 - Auxiliary heater/air conditioning control unit