Before changing a fuse

brake.  Park the vehicle and apply the parking brake.
  Remove the SmartKey from the ignition  Switch off all electrical consumers.
lock.  Remove the SmartKey from the ignition lock.

The fuses are located in various fuse boxes:
• fuse box on the driver's side of the dashboard
• fuse box in the engine compartment on the left-hand side of the vehicle, when viewed in the direction of travel
• fuse box in the trunk on the right-hand side of the vehicle, when viewed in the direction of travel

The fuse allocation chart is located in the vehicle tool kit in the stowage compartment under the trunk floor.

    See also:

    Using KEYLESS-GO to start the engine
    WARNING As long as the SmartKey is in your vehicle, the vehicle can be started. Therefore, never leave children unattended in the vehicle, as they could otherwise accidentally start the engin ...

    Problems with your vehicle
    If you should experience a problem with your vehicle, particularly one that you believe may affect its safe operation, we urge you to contact an authorized Mercedes-Benz Center immediately to ...

    Making adjustments in 1 mph (Canada: 1 km/h) increments
    •► Briefly press the cruise control lever to the pressure point, up 1 for a higher speed or down 2 for a lower speed. The last speed stored is increased or reduced. ...