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:
Important safety notes
WARNING
Only use roof racks approved by Mercedes- Benz for your vehicle model to avoid
damage to the vehicle.
Follow the manufacturer's installation instructions. Otherwise, an improperly ...
Cleaning the seat belts
Use clean, lukewarm water and soap
solution.
Do not clean the seat belts using chemical
cleaning agents. Do not dry the seat belts
by warming them above 176 °F (80 °C) or
placing them in di ...
Outside temperature display
The outside temperature display is in the
multifunction display.
WARNING
The outside temperature indicator is not
designed to serve as an ice-warning device
and is therefore unsuitable for t ...