The concept
The Auto Start/Stop function helps save fuel.
The system switches off the engine during a stop, e.g., in a traffic congestion or at traffic lights. The ignition remains switched on. The engine starts again automatically for driving off.
Certain vehicle components may experience additional wear as a result of this system.
See also:
Integrated Owner's Manual in the vehicle
The integrated Owner's Manual can be displayed
on the Control Display. The equipment
and functions that are in the vehicle are described
therein. ...
Switching off automatically
The system switches off and the LED goes out:
After approx. 160 ft/50 m when driving forward.
Above approx. 22 mph/36 km/h when driving
forward.
Switch on the system again if necessary. ...
Switch off the engine during
longer stops
Switch off the engine during longer stops, e.g.,
at traffic lights, railroad crossings or in traffic
congestion.
Fuel savings are achieved after the vehicle is
switched off for only approx. 4 s ...