Fuel grade
You should only refuel with unleaded premium-grade gasoline as this avoids damaging the catalytic converter.
If engine running problems are apparent, have the cause checked immediately and repaired. Excess unburned fuel can otherwise enter the catalytic converter, leading to overheating and possibly causing a fire.
Use a filter when refueling from a fuel can. Otherwise, the fuel lines and/or injection system could be blocked by particles from the fuel can.
Only refuel with premium-grade unleaded gasoline with a specified minimum octane number of 91 (average value of 96 RON/ 86 MON).
You will usually find information about the fuel grade on the pump. If you cannot find the label on the pump, ask the staff for assistance.
You can find more information under "Fuel" (), or by contacting an authorized Mercedes-Benz Service Center or visiting http://www.mbusa.com (USA only).
See also:
Defrosting the windows
Windows fogged up on the inside
► Activate the cooling with air
dehumidification function .
► Activate automatic mode
.
► If the windows continue to fog up,
activate
the defr ...
Problems with the rear window defroster
The rear window defroster has deactivated itself prematurely or cannot be activated.
Switch off any consumers that are not required, e.g. reading lamps or
interior lighting.
When the battery ...
Defrosting the windshield
You can use this function to defrost the windshield or to defrost the inside
of the windshield and the side windows.
You should only select the defrosting function until the windshield is clear ...