For the USA only:
The following text is reproduced as required of all manufacturers according to Title 49, Code of U.S. Federal Regulations, Part 575 pursuant to the National Traffic and Motor Vehicle Safety Act of 1966.

Reporting safety defects

If you believe that your vehicle has a defect which could cause a crash or could cause injury or death, you should immediately inform the National Highway Traffic Safety Administration (NHTSA) in addition to notifying Mercedes-Benz USA, LLC.

If NHTSA receives similar complaints, it may open an investigation, and if it finds that a safety defect exists in a group of vehicles, it may order a recall and remedy campaign.

However, NHTSA cannot become involved in individual problems between you, your dealer, or Mercedes-Benz USA, LLC.

To contact NHTSA, you may call the Vehicle Safety Hotline toll-free at
1-888-327-4236 (TTY: 1-800-424-9153); go to: http://www.safercar.gov; or write to:
Administrator, NHTSA Headquarters,
1200 New Jersey Avenue, SE, West Building,
Washington, DC 20590.
You can also obtain additional information about vehicle safety from:
http://www.safercar.gov.