SLK 55 AMG (171.473) V8-5.5L (113.989) (2005)
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National version
Delayed-off running
After switching off the ignition, the ME control unit carries out a computer delayed-off running, in which certain data memory (e.g. diagnostic fault code
memory) is updated. The duration is dependent on the coolant temperature (approx. 4 seconds at 80 °C, and about 150 seconds at - 30 °C). If the ignition
is switched off without starting the engine, the run-on time is always approx. seconds.
Diagnosis/DTC memory
The ME control unit checks its input and output signals for plausibility and recognizes possible faults. The following faults can be distinguished:
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Faults which are permanently present.
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Loose contact faults which occur while driving
The faults can only be read out in the STAR DIAGNOSIS in the ME control unit and then erased.
Specific functions can be actuated individually for diagnostic purposes. These are listed in the menu points.
The faults are not erased in the ME control unit after circuit 30 is interrupted.
Various engine operating information is transmitted via the CAN databus by the ME control unit to other control units which are connected to the CAN
databus.
