See also:

Removing/installing the cargo compartment cover with integrated cargo net
You can install and remove the combined cargo cover and net from the cargo compartment. – Make sure that the cargo net and the cargo compartment cover are rolled up. – To remove: press but ...

Additives
Do not use any additives in the engine oil. This could damage the engine. ...

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. ...