See also:

Service and literature
Your vehicle is covered under the terms of the warranties printed in the Service and Warranty Information booklet. Your authorized Mercedes-Benz Center will exchange or repair any defective parts ...

Maintenance
The Service and Warranty Booklet describes all the necessary maintenance work which should be done at regular intervals. Always have the Service and Warranty Booklet with you when you bring the ...

Removing the mechanical key
Push release catch 1 in the direction of the arrow and at the same time, remove mechanical key 2 from the SmartKey. ...