Mercedes-Benz C-Class 2009

2009 Mercedes-Benz C-Class: what owners report

• On the 2009 C300 in the US, a failed electronic steering lock that stops the car from starting ranks among the top complaints.2009
• The 2007–2014 W204's rear axle can rust until it breaks, and Mercedes has paid for new rear axles as goodwill; a broken subframe near 118,000 miles is the top complaint on the 2009 US C300.2007–2014
• W204 diesels with the OM 651 engine (from late 2008) wear timing-chain tensioners and suffer leaking or failed piezo injectors; water pumps on diesels built in spring and summer 2009 also leaked.2008–2014