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.
Rear fog lamp
1Left-hand standing lamps
2Right-hand standing lamps
3Parking lamps, side marker
lamps,
license plate and instrument cluster
lighti
4Automatic headlamp mode/daytime
running lamps
5Low-bea ...
Control panel for 3-zone automatic climate control with additional
rearcompartment
climate control
Canada only
Front control panel
1 Sets the temperature, left
2 Defrosts the windshield
3 Switches the ZONE function on/off
4 Activates/deactivates cooling with air dehumidi ...
Fuses
Important safety notes
WARNING
Only use fuses that have been approved for
Mercedes-Benz vehicles and that have the
correct fuse rating for the systems
concerned. Do not attempt to repair or brid ...