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:
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 pa ...
Switching on/off
The steering-wheel heating heats the leather
areas of the steering wheel
•► Make sure that the SmartKey is in position
2 in the ignition lock.
•► To switch on/off: turn the lever i ...
Attaching the roof carrier
Attaching the roof carrier
Open covers 1 carefully in the
direction of
the arrow.
Fold covers 1 upwards.
Only secure the roof carrier to the
anchorage points under covers 1.
Observe th ...
