Mechanical key

General notes

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.

There are several ways to turn off the alarm:

To turn the alarm off with the
SmartKey: press the on the SmartKey. button on the SmartKey.
or
Insert the SmartKey into the ignition lock.
or
To deactivate the alarm with KEYLESSGO:

press the Start/Stop button in the ignition lock. The SmartKey must be in the vehicle.
or
Lock or unlock the vehicle using KEYLESSGO.

The SmartKey must be outside the vehicle.

Removing the mechanical key

► Push release catch 1 in the direction

Push release catch 1 in the direction of the arrow and at the same time, remove mechanical key 2 from the SmartKey.

    See also:

    Passive safety: Nine airbags as standard
    Drivers of Mercedes vehicles are safer on the road than drivers of other car brands. This is the result of a study by Mercedes-Benz accident research based on official, anonymous data samples from ...

    Driving
    My biggest issue was with the E350's stiff accelerator pedal. I did most of my driving on icy roads, and that's not where you want to be abrupt with the gas pedal. Thing is, the pedal was so stiff ...

    Tire pressure specifications
    WARNING Follow recommended tire inflation pressures. Do not underinflate tires. Underinflated tires wear excessively and/or unevenly, adversely affect handling and fuel economy, and are mo ...