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Problem
Possible causes/consequences and M Solutions
The engine cannot be
started using the Smart-
Key.
The on-board voltage is too low.
X
Switch off non-essential consumers, e.g. seat heating or interior
lighting, and try to start the engine again.
If this does not work:
X
Check the starter battery and charge it if necessary (Y page 350).
or
X
Jump-start the vehicle (Y page 352).
or
X
Consult a qualified specialist workshop.
The engine cannot be
started using the Start/
Stop button. The Smart-
Key is in the vehicle.
The vehicle is locked.
X
Unlock the vehicle and try to start the vehicle again.
The SmartKey battery is discharged or nearly discharged.
X
Check the SmartKey battery (Y page 84) and replace it if necessary
(
Y page 84).
If this does not work:
X
Start your vehicle with the SmartKey in the ignition lock.
There is interference from a powerful source of radio waves.
X
Start your vehicle with the SmartKey in the ignition lock.
You have lost a Smart-
Key.
X
Have the SmartKey deactivated at a qualified specialist workshop.
X
Report the loss immediately to the vehicle insurers.
X
If necessary, have the locks changed as well.
You have lost the
mechanical key.
X
Report the loss immediately to the vehicle insurers.
X
If necessary, have the locks changed as well.
Doors
Important safety notes
G
WARNING
If children are left unsupervised in the vehicle,
they could:
R
open the doors, thus endangering other
people or road users.
R
get out and disrupt traffic.
R
operate the vehicle's equipment.
Additionally, children could set the vehicle in
motion if, for example, they:
R
release the parking brake.
R
shifting the automatic transmission out of
park position P
R
Start the engine.
There is a risk of an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children or animals unattended in the
vehicle. Always keep the SmartKey out of
reach of children.
Doors
87
Opening and closing
Z
89


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