Unlocking the driver's door (mechanical key)
If the vehicle can no longer be 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.
Take the mechanical key out of
the SmartKey.
Insert the mechanical key into the
lock of the driver's door as far as it will go.

Turn the mechanical key
counterclockwise to position 1.
The door is unlocked.
Turn the mechanical key back and
remove it.
Insert the mechanical key into the
SmartKey.
See also:
Service menu
In the Serv. menu you can:
- call up display messages
- restart the tire pressure loss warning
system (Canada only) Rcheck the tire pressure electronically
- call up the ...
Vehicle remote closing
If you forget to lock your vehicle but are no longer in the vicinity of the vehicle,
it can be locked for you by the Mercedes-Benz Customer Assistance Center.
The vehicle can be locked remotely up ...
Important safety notes
Consult an authorized Mercedes-Benz Center
if you require information on approved and
recommended tires and wheels for summer
and winter operation. Advice on purchasing
and caring for tires is ...
