Cleaning the seat belts

solution.  Use clean, lukewarm water and soap solution.

using chemical 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 direct sunlight.

WARNING
Do not bleach or dye seat belts as this may severely weaken them. In a crash, they may not be able to provide adequate protection.

    See also:

    The windshield wipers are inoperative
    The windshield wiper drive is malfunctioning. Select another wiper speed on the combination switch. Have the windshield wipers checked at a qualified specialist workshop. ...

    Roadside Assistance button
    – Press and hold Roadside Assistance button 1 for more than two seconds. This initiates a call to the Mercedes-Benz Customer Assistance Center. The indicator lamp in Roadside Assistance but ...

    Cleaning the steering wheel and gear or selector lever
    – Thoroughly wipe with a damp cloth or use leather care agents that have been recommended and approved by Mercedes- Benz. ...