See also:

Displays and controls
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Problems with the seat heating
The seat heating has switched off prematurely or cannot be switched on. The vehicle's electrical system voltage is too low because too many electrical consumers are switched on. - Switch off ...

Cleaning the headliner and carpets
Roof lining: use soft brushes or dry shampoo if it is particularly dirty. Carpets: use carpet and textile cleaners that have been approved and recommended by Mercedes-Benz. ...