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 ...

Cleaning genuine wood and trim elements
– Wipe the wooden trim and trim pieces with a damp, lint-free cloth, e.g. a microfiber cloth. – Heavy soiling: use car care and cleaning products recommended and approved by Mercedes-Benz. ...

Tread
The part of the tire that comes into contact with the road. ...