03 Your driving environment
 DRIVe Start/Stop*
03
* Option/accessory, for more information, see Introduction.129 Limitations
The engine does not auto-stopEven if the Start/Stop function is activated, the
engine does not stop automatically if:
ConditionsM/AA
the car has not achieved
approx. 5 km/h (= fast walking
pace) first after a key start or the
last auto-stop.M + A
the driver has opened the seat-
belt's buckle.M + A
the capacity of the battery is
below the minimum permissible
level.M + A
the engine does not have normal
operating temperature.M + A
outside temperature is below
freezing point or above
approx. 30 °C.M + A
the environment in the passenger
compartment differs from the
preset values - indicated by the
ventilation fan running at a high
speed.M + A
ConditionsM/AA
the car is reversed.M + A
battery temperature is below
freezing point or above
approx. 55 °C.M + A
the driver makes greater steering
wheel movements.M + A
the exhaust system's particulate
filter is full - the temporarily dis-
engaged Start/Stop function is
reactivated once an automatic
cleaning cycle has been per-
formed (see page 290).M + A
the road is very steep.M + A
a trailer is connected electrically
to the car’s electrical system.M + A
the atmospheric air pressure is
less than equivalent to 1500-2000
metres above sea level - the cur-
rent air pressure varies with the
prevailing weather conditions.A
adaptive cruise control Queue
Assist is activated.A
ConditionsM/AA
the driver’s door has been
opened with the gear selector in
D position.A
the gear selector is moved out of
the D position to S positionB or
"+/-".
A
AM = Manual gearbox, A = Automatic gearbox.BSport mode.
The engine auto-startsAn engine that has stopped automatically may
restart in some cases without the driver having
decided that the journey should continue. In
the following cases the engine also starts auto-
matically if the driver has not depressed the
clutch pedal (manual gearbox) or takes his/her
foot off the brake pedal (automatic gearbox):
ConditionsM/AA
Misting forms on the windows.M + A
The environment in the passen-
ger compartment deviates from
the preset values.M + A
The outside temperature falls
below freezing point or exceeds
approx. 30 °C.M + A
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