See also:

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 t ...

Service messages
Information on the type of service and service intervals (see separate Service Booklet). You can obtain further information from an authorized Mercedes-Benz Center or at http://www.mbusa.com (USA ...

Servicing the brakes
If the red brake warning lamp lights up in the instrument cluster and you hear a warning tone while the engine is running, the brake fluid level may be too low. Observe additional warning me ...