Mercedes Benz C63 AMG Service in Dubai

The M156 engines in the Mercedes C63 AMG experience issues with head bolts, leading to engine breakdowns. The rusting and breaking of head bolts were caused by them stretching as they were tightened, allowing rust to reach the top. Mercedes changed the design of head bolts to have a male top, preventing rust from spreading too far. The old-style head bolts were used until the 2011 model year, when new-style head bolts were introduced in order to avoid further damage.

Bleeding seats are an issue that C63 AMG owners have commonly reported. This problem is pervasive with late-model C-Class owners, and it appears that the problem is caused by a plasticizer used to soften the car’s MBTex seat material.

In 2011, a class action suit was filed by C63 AMG owners, alleging that Mercedes-Benz knew about M156 issues with camshafts, lifters, and bearings prematurely. The lawsuit claimed that the soft metal used in the camshafts was improperly heat-treated, leading to premature wear. Despite a service bulletin noting the problem, no corrective recall was ordered. Many C63 owners still experience clicking or tapping when starting their car due to oil “bleeding down.” The camshafts and lifters run unlubricated for the first few moments, and the soft metal corrodes quickly in that period, resulting in the engine’s lousy timing over the years.

While one-off cases include customer cars that have seen much better days, the most likely culprit for this in the Mercedes Benz C63 AMG is the Cabin AC air filter and the leather upholstery. The natural odor of the leather and Alcantara can sometimes smell musty and moldy. They need to be cleaned regularly with appropriate materials and care.