See also:

Problems with fuel and the fuel tank
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Snow chains
For safety reasons, Mercedes-Benz recommends that you only use snow chains which have been specially approved for your vehicle by Mercedes-Benz, or are of a corresponding standard of quality. ...

Suspension tuning
General notes The electronically controlled damping system works continuously. This improves driving safety and ride comfort. The damping is tuned individually to each wheel and depends on: & ...