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 or the trunk lid/ tailgate, 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 in the ignition lock.
See also:
Important safety notes
The coolant is a mixture of water and
antifreeze/corrosion inhibitor. It performs
the following tasks:
• corrosion protection
• antifreeze protection
• raising the boiling point
The engi ...
Emergency Tensioning Devices, belt
force limiters
The front seat belts and the outer seat belts
in the rear are equipped with ETDs and seat
belt force limiters.
The ETDs on the driver's and front-passenger
seat consist of pyrotechnic belt buck ...
Service and literature
Your vehicle is covered under the terms of the
warranties printed in the Service and
Warranty Information booklet. Your
authorized Mercedes-Benz Center will
exchange or repair any defective pa ...