The Mercedes-Benz C-Class W204 represents the third generation of the German manufacturer's premium compact sedan. Launched in March 2007, it succeeded the W203 with a more dynamic approach and a more assertive design, inspired by the S-Class W221. Available as a sedan (W204), wagon (S204), and coupe (C204, from 2011), it was a major commercial success for Mercedes-Benz. A significant facelift occurred in 2011, bringing aesthetic changes (headlights, bumpers, completely revised interior) and, more importantly, technical updates, with the introduction of new, more efficient engines (notably the M271 CGI and M276 V6 gasoline engines, as well as the evolution of the OM651 diesel). Overall, the W204 is perceived as a reliable car, marking a return to better build quality after some criticism o
The Mercedes-Benz C-Class W204 is an excellent premium sedan, offering a successful compromise between comfort, dynamism, and brand image. Its overall reliability is good, especially after the 2011 facelift. For a confident purchase: * Prioritize post-facelift models (from 2011 onwards): They benefit from more modern engines (M271 CGI, M276 V6, improved OM651) and a significantly higher quality interior. * Gasoline: The M271 CGI engines (C180, C200, C250) are good choices, provided the injector and chain history is checked. The M276 V6 (C350 post-2011) is the most reliable and pleasant of the gasoline V6s. Pre-2011 M272 V6s should be considered with the utmost caution and an imperative check of the engine serial number for the balance shaft sprocket issue. The C63 AMG is a performance monster, but requires a very substantial maintenance budget and a check of the cylinder head bolts on pre-2011 models. * Diesel: The OM651 (C200, C220, C250 CDI) are very efficient, but injector history is crucial. The OM642 V6 (C320, C350 CDI) offer superior refinement but can suffer from costly oil leaks. Regardless of the choice, a complete and clear service history is non-negotiable. An inspection