Premium-grade unleaded gasoline

To ensure the longevity and full To ensure the longevity and full performance of the engine, only premiumgrade unleaded gasoline may be used.
If there is no premium-grade unleaded gasoline available and regular-grade unleaded gasoline may be used; please observe the following precautions:
- only fill the fuel tank to half full with regular-grade unleaded gasoline and fill the rest with premium-grade unleaded gasoline as soon as possible.
- do not drive at the maximum speed.
- avoid sudden acceleration.
- if the vehicle is carrying a light load, e.g. two passengers without luggage, do not allow the engine to rev above 3,000 rpm.
- if the vehicle is fully loaded or is being operated in mountainous terrain, do not depress the accelerator pedal further than 2/3 of the pedal travel.

    See also:

    Automatic transmission
    •► Shift the transmission to position P. The transmission position display in the multifunction display shows P. You can also start the engine when the transmission is in position N. ...

    Unlocking the trunk (mechanical key
    The trunk lid swings upwards when opened. Therefore, make sure that there is sufficient clearance above the trunk lid. If the trunk cannot be unlocked with the SmartKey or KEYLESS-GO, use th ...

    Additional systems for the ultimate in listening pleasure and entertainment
    Mercedes customers can, if desired, combine the infotainment facilities for the CLS with other systems: The Logic7 surround sound system developed by Mercedes-Benz together with the audio specia ...