How to Reset the Service B Warning Light in the 2008 Mercedes C300


1. Turn the ignition switch to 'On' without starting the engine.
2. Press the menu button on the left side of the steering wheel until the total mileage is displayed.
3. Press the up or down arrow button on the steering wheel until 'Service B' is displayed.
4. Press and hold the trip meter reset button until the display indicates the word 'Reset.'
5. Press the trip meter reset button to confirm and reset the service B light.