The Mercedes Benz SLK Class R172, 2011-present, is a third generation German roadster. This hardtop convertible offers unique features such as Magic Sky Control, and can be purchased as a 6-speed manual or 7-speed automatic. Despite being well received by both the public and critics, like any new make and model, this sports car has demonstrated a few common problem, such as exhaust manifold issues.
Rattling noises, especially on the left side, are the most commonly reported manifold problems. Sometimes these issues occur in these German imports when they are brand new, but drivers have also reported the sounds presenting at over 1,500 miles. The rattle can be quite constant, or it can be occasional. Some owners notice it only between idle and 1000 RPMs, while others only hear an obnoxious knocking or clanking sound upon startup.
Your German roadster might be in need of a vibration damper. Alternately, the exhaust manifold might need to be replaced. Regardless, unusual noises could indicate a variety of issues, not only manifold problems, and a professional should address them as soon as possible.
To prevent further damage, call your nearby German import garage. Independent mechanics will be able to offer specialized yet affordable service. They will already be aware of your German sports car’s most common issues, and they will be well versed in the best repairs. These technicians will not only understand the potential dangers of such malfunctions, but they will agree that these noises are unacceptable and will be happy to help you with your luxury vehicle.
Search for a local, independent Mercedes-Benz repair shop with Mercedes-Benz mechanics that have dealer-level expertise at a fraction of the expense.