B46/B58 Engine
System wiring diagram B68/B58 engine in G30
Digital Motor Electronics (DME)
Electric fan
Relay for electric fan
Power distribution box, engine compartment
Pinion starter
Air conditioning compressor
CAN terminator 6
CAN terminator 5
CAN terminator 4
Body Domain Controller (
Point A in the heat management module circuit diagram designates the cold
start with an engine that
has completely cooled down.
Cold-start phase, Bx8TU engine
In the cold-start phase, the coolant circulates exclusively via a bypass in
the coolant pump. The rotary
valve in the heat management mod