If the vehicle can no longer be locked with the SmartKey, use the mechanical key.
■ Open the driver's door.
■ Close the front-passenger door, the rear doors and the tailgate.
■ Press the locking button .
■ Check whether the locking knobs on the front-passenger door and the rear doors are still visible. Press down the locking knobs manually, if necessary .
■ Close the driver's door.
■ 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.

1 To lock
■ Turn the mechanical key clockwise as far as it will go to position 1.
■ Turn the mechanical key back and remove it.
■ Make sure that the doors and the tailgate are locked.
■ Insert the mechanical key into the SmartKey.
If you lock the vehicle as described above, the fuel filler flap is not locked. The antitheft alarm system is not armed.
Wheel and tire combinations
Please bear the following in mind
For safety reasons, Mercedes-Benz
recommends that you only use Tires and
wheels which have been approved by
Mercedes-Benz specifically for your
vehicle.
The ...
SRS (Supplemental Restraint System)
Introduction
SRS reduces the risk of occupants coming
into contact with the vehicle's interior in the
event of an accident. It can also reduce the
effect of the forces to which occupants are
subj ...
Adjusting the seats electrically
1 Head restraint height
2 Seat cushion angle
3 Seat height
4 Seat fore-and-aft adjustment
5 Backrest angle
Vehicles with memory function: if PRESAFE
® has been triggered, the frontpassenger
s ...