Smart Key functions

See also:

Engine
Display messages (USA only) (Canada only) The yellow Check Engine warning lamp lights up while the ignition is switched on with the engine running. Possible causes/consequences and ► ...

Speed rating
The speed rating is part of the tire identification. It specifies the speed range for which the tire is approved. ...

High-performance brake system for AMG vehicles
The high-performance brake system is installed only on the S 63 AMG and S 65 AMG. WARNING New vehicle brake pads and discs, and replacement brake pads and discs may take several hundred mile ...