See also:

System self-test
If an adult occupant is properly sitting on the passenger seat and the OCS classifies the occupant as an adult, the indicator lamp illuminates and goes out again after approximately 6 seconds ...

Useful information
This Operator's Manual describes all models and all standard and optional equipment of your vehicle available at the time of publication of the Operator's Manual. Country-specific differences ...

Interior design in detail: From Economy to First Class
The third generation of the Mercedes-Benz M-Class combines the best of two worlds: the much-coveted SUV not only boasts a strong off-road vehicle heritage, but its passengers also benefit from lev ...