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▷ The vehicle begins rolling.
▷ Fogging of the windows when the auto‐
matic climate control is switched on.
▷ Vehicle battery is heavily discharged.
▷ Excessive cooling of the vehicle's interior
when the heating is switched on.
▷ Low brake vacuum pressure; this can oc‐
cur, e.g., if the brake pedal is depressed a
number of times in succession.
Preventing an automatic engine stop
with aM double-clutch transmission
Concept
To make it possible to drive off very quickly,
such as at an intersection, the automatic en‐
gine stop can be actively prevented.
Preventing an engine stop using the
brake pedal
The engine stop can be actively prevented
within one second after the vehicle comes to a
standstill:
▷ Immediately after the vehicle comes to a
standstill, briefly press the brake pedal
forcefully.
▷ Then press the brake pedal with normal
braking force.
Activating/deactivating the system
manually
Using the button
Press button.
▷ LED comes on: Auto Start/Stop function is
deactivated.
The engine is started during an automatic
engine stop.
The engine can only be stopped or started
via the Start/Stop button.
▷ LED goes out: Auto Start/Stop function is
activated.
Switching off the vehicle during an
automatic engine stop
During an automatic engine stop, the vehicle
can be switched off permanently, e.g., when
leaving it.
M double-clutch transmission:
1.
Press the Start/Stop button. The ignition is
switched off. The Auto Start/Stop function
is deactivated.
Selector lever position P is engaged auto‐
matically.
2. Set the parking brake.
Manual transmission:
1.
Press the Start/Stop button. The ignition is
switched off. The Auto Start/Stop function
is deactivated.
2. Shift into first gear or reverse.
3. Set the parking brake.
Engine start as usual via Start/Stop button.
Automatic deactivation
In certain situations, the Auto Start/Stop func‐
tion is deactivated automatically for safety rea‐
sons, e.g., if no driver is detected.
Malfunction
The Auto Start/Stop function no longer
switches off the engine automatically. A Check
Control message is displayed. It is possible to
continue driving. Have the system checked by
Seite 69
Driving Controls
69
Online Edition for Part no. 01 40 2 974 681 - VI/16
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