Mercedes-Benz E400 Owners May Experience Chain Rattle Noise

Some 2017 Mercedes-Benz E400 owners have reported a chain rattle noise coming from the engine. This issue is related to the timing chain system and may be accompanied by a Technical Service Bulletin (TSB) from the manufacturer. The timing chain tensioners should be inspected and potentially replaced when resealing the timing cover.

Regular maintenance is essential to prevent similar issues from arising in European and Japanese vehicles, including BMW, Audi, Porsche, VW, Volvo, Jaguar, Lexus, Toyota, and Honda models. The National Highway Traffic Safety Administration (NHTSA) may have recall information available for affected vehicles.

Owners are advised to consult their owner's manual or contact the manufacturer for guidance on addressing the chain rattle noise and maintaining their vehicle.