Driving
CONTROLS
▷ The brake pedal remains depressed while the
vehicle is stopped.
▷ The external temperature is high and auto‐
matic climate control is running.
▷ The driver's safety belt is buckled or the driv‐
er's door is closed.
▷ The car's interior has not yet been heated or
cooled to the required level.
In order to be able to release the brake pedal, en‐
gage the selector lever in position P. The engine
remains off.
▷ The engine is not yet at operating tempera‐
ture.
▷ The wheels are at a sharp angle or the steer‐
ing wheel is being turned.
To continue driving depress the brake pedal.
When a gear is engaged, the engine starts auto‐
matically.
▷ After driving in reverse.
▷ Where there is a risk of window condensation
when the automatic climate control is
switched on.
The air flow from the air conditioner is reduced
when the engine is switched off.
▷ Vehicle battery is heavily discharged.
▷ At higher elevations.
Steptronic transmission: manual
engine stop
Depending on the vehicle equipment and coun‐
try version, the engine can be switched off man‐
ually, if the engine was not switched off automat‐
ically when the vehicle stopped:
▷ The hood is unlocked.
▷ HDC Hill Descent Control is activated.
▷ The parking assistant is activated.
▷ Stop-and-go traffic.
▷ Press the brake pedal forcefully again from
the current pedal position.
▷ Selector lever in selector lever position N,
M/S or R.
▷ Engage selector lever position P.
▷ Use of fuel with high ethanol content.
If all functional preconditions are fulfilled, the en‐
gine switches off.
Starting the engine
The engine starts automatically under the follow‐
ing conditions:
Displays in the instrument cluster
The READY display in the tach‐
ometer signals that the Auto
Start/Stop function is ready to
start the engine automatically.
▷ Steptronic transmission: by releasing the
brake pedal.
After the engine starts, accelerate as usual.
Safety mode
The display indicates that the
conditions for an automatic en‐
gine stop have not been met.
After the engine switches off automatically, it will
not start again automatically if any one of the fol‐
lowing conditions are met:
▷ The driver's safety belt is unbuckled and the
driver's door is open.
Functional limitations
▷ The hood was unlocked.
The engine is not switched off automatically in
situations such as the following:
Some indicator lights light up for a varied length
of time.
▷ In case of a steep downhill grade.
▷ External temperature too low.
The engine can only be started via the Start/Stop
button.
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