Vehicle features and
options
This chapter describes all standard, country-specific
and optional features offered with the series.
It also describes features and functions that are
not necessarily ava
Concept
The Auto Start/Stop function helps save fuel.
The system switches off the engine during a
stop, for instance in traffic congestion or at traffic
lights. Drive-ready state remains switched on.
Functional requirements
Steptronic transmission
The engine starts automatically under the following
preconditions:
By releasing the brake pedal.
When Automatic Hold is activated: press the
acceler
Notes
WARNING: Electric fuel pump starts up automatically when door is
opened!
Disconnect BATTERY NEGATIVE TERMINAL (risk of fire due to short-circuiting
on removal).
Observe warning on cylinder head cover.
WARNING: Carry out installation work on fuel system only with coolant
temperature
below 40
Troubleshooting
Fault in fuel injection system
Spark plug faults
Ignition coil faults
Further fault patterns with evaluation
Additional fault notes for troubleshooting
Oscillograms
Normal oscillogram
Oscillograms of ignition coils from different manufacturers
Check
Secondary signal for