Changing the battery
You require a CR 2025 3 V cell battery.
- Take the mechanical key out of the SmartKey ().

- Press mechanical key 2 into the opening in the SmartKey in the direction of the arrow until battery tray cover 1 opens. When doing so, do not hold cover 1 shut.
- Remove battery tray cover 1.

- Repeatedly tap the SmartKey against your palm until battery 3 falls out.
- Insert the new battery with the positive terminal facing upwards. Use a lint-free cloth to do so.
- Make sure that the surface of the battery is free from lint, grease and all other forms of contamination.
- Insert the front tabs of battery tray cover 1 and then press to close it.
- Insert the mechanical key into the SmartKey.
- Check the function of all SmartKey buttons on the vehicle.
See also:
Air distribution settings
The air distribution can be set individually for
the driver's and front-passenger sides.
Directs air through the
defroster vents
Directs air through the center and
side air vents
Direc ...
The Inside
Mercedes has been reshaping its lineup for the past few years, and the
interiors of models like the C-Class and new E-Class have taken on a more
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Activating/deactivating the radar
sensor system
The following systems are switched off when
the radar sensor system is deactivated:
• DISTRONIC PLUS
• BAS PLUS
• PRE-SAFE® Brake
• Blind Spot Assist
• Active Blind Spot Assist
USA on ...
