Every model year of the Mercedes-Benz C320 is equipped with an onboard computer that tracks various conditions within the vehicle. Two of these conditions are the regular maintenance intervals and the brake pad sensors. When regular maintenance needs to be done, a service reminder is displayed. When the brake pad sensor indicates that new brake pads are needed, a brake reminder is displayed. After either of these situations are resolved, the message needs to be reset so the computer can keep track of current conditions.
Turn the ignition switch to position 2. Do not start the engine.
Press the menu button on the left side of the steering wheel until the odometer is displayed.
Press the arrow keys on the left side of the steering wheel until either the service or brake message is displayed.
Press and hold the trip odometer reset button on the left side of the instrument cluster until the reset confirmation message appears on the instrument panel.
Press and release the trip odometer reset button to confirm and complete the reset.
