Transfer case

This section is only valid for vehicles with 4- wheel drive (4MATIC). Power is always transmitted to both axles.

Performance tests may only be carried out on a 2-axle dynamometer. The brake system or transfer case could otherwise be damaged. Contact a qualified specialist workshop for a performance test.

Mercedes-Benz recommends that you use an authorized Mercedes-Benz Center for this purpose.

To prevent ESP® from intervening, the ignition must be switched off (SmartKey or the Start/Stop button in position 0 or 1) if:

 - the parking brake is being tested on a brake dynamometer.
 - the vehicle is being towed with only one axle raised (not permitted for vehicles with 4MATIC).

The brake system could otherwise be damaged.

    See also:

    System self-test
    The indicator lamp illuminates when you: turn the SmartKey to position 1 or 2 in the ignition lock on vehicles with KEYLESS-GO, press the Start/Stop button once or twice If an adult occupa ...

    Interchanging the wheels
    WARNING Rotate front and rear wheels only if the tires are of the same dimension. If your vehicle is equipped with mixed-size tires (different tire dimensions front vs. rear), tire rotation i ...

    Heavy and light loads
    WARNING Depressing the brake pedal constantly results in excessive and premature wear to the brake pads. It may also cause the brakes to overheat, seriously impairing their effectiveness. It ...