General notes

If the vehicle can no longer be locked or unlocked with the SmartKey, use the mechanical key.

If you use the mechanical key to unlock and open the driver's door or the trunk lid/ tailgate, 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 button or 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.

If you unlock the vehicle using the mechanical key, the fuel filler flap will not be unlocked automatically.

•► To unlock the fuel filler flap: insert the SmartKey in the ignition lock.

    See also:

    Roadside Assistance
    The Mercedes-Benz Roadside Assistance Program offers technical help in the event of a breakdown. Calls to the toll-free Roadside Assistance Hotline are answered by our agents 24 hours a day, 365 d ...

    Important safety notes
    WARNING On slippery road surfaces, never downshift in order to obtain braking action. This could result in drive wheel slip and reduced vehicle control. Your vehicle's ABS will not prevent ...

    Vehicles with a TIREFIT kit
    – Lift the trunk floor up. 1 Lug wrench 2 Jack 3 Tire sealant filler bottle 4 Alignment bolt 5 Tire inflation compressor 6 Folding wheel chock 7 Warning triangle 8 Ratchet wrench 9 Towing ...