Principle
The Shift lights in the instrument cluster indicate
the maximum shift point at which the best possible
acceleration can be achieved.
General information
Depending on the equipment and national-market
version, the Shift lights are active in the M
manual mode of the Steptronic Sport transmis
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