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Total time with switched-off engine
ECO PRO, refer to page 252,
driving mode: if the vehicle is
equipped accordingly, the total
time that the engine has been
switched off using the Auto
Start/Stop function is displayed on an auto‐
matic engine stop.
The total time is automatically reset every time
the vehicle is refueled.
Functional limitations
The engine is not switched off automatically in
the following situations:
▷ In case of a steep downhill grade.
▷ Brake not engaged strongly enough.
▷ The external temperature is high and auto‐
matic climate control is running.
▷ The car's interior has not yet been heated
or cooled to the required level.
▷ Where there is a risk of window condensa‐
tion when the automatic climate control is
switched on.
▷ Engine or other parts not at operating tem‐
perature.
▷ Engine cooling is required.
▷ The wheels are at a sharp angle or the
steering wheel is being turned.
▷ Vehicle battery is heavily discharged.
▷ At higher elevations.
▷ The hood is unlocked.
▷ HDC Hill Descent Control is activated.
▷ The parking assistant is activated.
▷ Stop-and-go traffic.
▷ Steptronic transmission: selector lever po‐
sition in N or R.
▷ After driving in reverse.
▷ Use of fuel with high ethanol content.
Starting the engine
Functional requirements
Steptronic transmission
The engine starts automatically under the fol‐
lowing preconditions:
▷ By releasing the brake pedal.
▷ When Automatic Hold is activated: press
the accelerator pedal.
Driving away
After the engine starts, accelerate as usual.
Safety mode
After the engine switches off automatically, it
will not start again automatically if any one of
the following conditions are met:
▷ The driver's safety belt is unbuckled and
the driver's door is open.
▷ The hood was unlocked.
Some indicator lights light up for a varied
length of time.
The engine can only be started via the Start/
Stop button.
System limits
Even if driving off was not intended, the deacti‐
vated engine starts up automatically in the fol‐
lowing situations:
▷ Excessive warming of the car's interior
when the air conditioning is switched on.
▷ Excessive cooling of the car's interior when
the heating is switched on.
▷ Where there is a risk of window condensa‐
tion when the automatic climate control is
switched on.
▷ The steering wheel is turned.
▷ Steptronic transmission: change from se‐
lector lever position D to N or R.
▷ Steptronic transmission: change from se‐
lector lever position P to N, D or R.
Seite 101
Driving Controls
101
Online Edition for Part no. 01402984955 - X/17
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