CONTENTS OF ENGINE ELECTRICAL SYSTEM GENERAL
General Information -> Working on ignition system.
-> Removing and installing electronic control units.
-> Welding work (overload protection of co
WARNING: Danger of scalding! Work on the cooling system should only be
carried
out when the engine has cooled down.
IMPORTANT: Wear protective gloves and goggles.
IMPORTANT: Lifetime coolant filling:
Never reuse used coolant.
When replacing and removing components which rely on the corrosion
prote
Fuel tank leakage diagnosis module
The fuel system leak test is regularly conducted when the engine is switched
off. Here, the following processes
are executed during the DME run-down period:
Initial situation
During normal engine operation, the switchover valve in the diagnosis module
is in t