See also:

Cleaning the seat belts
– Use clean, lukewarm water and soap solution. Do not clean the seat belts using chemical cleaning agents. Do not dry the seat belts by warming them above 176 °F (80 °C) or placing them ...

Important safety notes
WARNING In order to avoid possible loss of vehicle control, all seat, head restraint, steering wheel and rear view mirror adjustments, as well as fastening of seat belts, must be done bef ...

Additives in gasoline
One of the major problems with poor quality fuels is the creation of carbon deposits during the combustion process. Mercedes-Benz recommends that you use fuel brands containing additives that prev ...