General notes
If the vehicle can no longer be locked or unlocked with the SmartKey, use the mechanical key.
If you use the mechanical key to unlock and open the driver's door, the anti-theft alarm system will be triggered .
There are several ways to turn off the alarm:
■ To turn the alarm off with the
SmartKey: press the or
button
on the SmartKey.
or
■ Insert the SmartKey into the ignition lock.
or
■ To deactivate the alarm with KEYLESSGO:
press the Start/Stop button in the
ignition lock. The SmartKey must be in the
vehicle.
or
■ Lock or unlock the vehicle using KEYLESSGO.
The SmartKey must be outside the vehicle.
If you unlock the vehicle using the mechanical key, the fuel filler flap will not be unlocked automatically.
■ To unlock the fuel filler flap: insert the SmartKey into the ignition lock.
Removing the mechanical key
1 Release catch
2 Mechanical key
■ Push release catch 1 in the direction of
the arrow and at the same time remove
mechanical key 2 from the SmartKey.
Off-road driving systems
4MATIC (permanent four-wheel drive)
If you fail to adapt your driving style, 4MATIC
can neither reduce the risk of accident nor
override the laws of physics. 4MATIC cannot
take account of road, we ...
Safety
Seat belts
Safety systems
...
Underinflated or overinflated tires
WARNING
Tires with pressure that is too low can
overheat and burst as a consequence. In
addition, they also suffer from excessive and/
or irregular wear, which can severely impair
the braking pro ...