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.
Switching off the engine
Important safety notes
WARNING
If you switch off the ignition while driving,
safety-relevant functions are only available
with limitations, or not at all. This could affect,
for example, the powe ...
Flat tire
Preparing the vehicle
► Stop the vehicle on solid, non-slippery and
level ground, as far away as possible from
traffic.
► Switch on the hazard warning lamps
.
► Apply the parki ...
Genuine Mercedes-Benz parts
Environmental note
Daimler AG also supplies reconditioned major
assemblies and parts which are of the same
quality as new parts. They are covered by the
same Limited Warranty entitlements as new
...