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.

Firmly turn the mechanical key
counterclockwise as far as it will go to
position 1 and hold it in this position.
Pull the door handle quickly.
The locking knob pops up.
The door is unlocked.
Turn the mechanical key back and remove
it.
Pull the door handle again.
Insert the mechanical key into the
SmartKey.
See also:
Towing the vehicle with the rear axle
raised
Only possible on vehicles without
4MATIC.
When towing your vehicle with the rear axle
raised, it is important that you observe the
safety instructions.
The ignition must be switched off if yo ...
Activating/deactivating the radar
sensor system
The following systems are switched off when
the radar sensor system is deactivated:
• DISTRONIC PLUS
• BAS PLUS
• PRE-SAFE® Brake
• Blind Spot Assist
• Active Blind Spot Assist
USA on ...
MOExtended tires (tires with run-flat
properties)
MOExtended tires (tires with run-flat
properties) allow you to continue driving your
vehicle even if one or more tires are entirely
deflated.
MOExtended tires may be used only in
conjunction ...
