The Mercedes-Benz CLS C257, launched in 2018, represents the third generation of the brand's distinctive four-door coupé. Built on the MRA platform shared with the E-Class (W213), it combines elegant, flowing lines with a luxurious interior and advanced technology. Positioned as a more stylish and exclusive alternative to the E-Class, the C257 offers a blend of comfort, performance, and sophisticated design. The C257 received a facelift in 2021, bringing subtle exterior revisions (new grille, bumpers), updated interior trim options, and the latest MBUX infotainment system. Overall, the CLS C257 is a well-engineered vehicle, but like many modern luxury cars, its complexity, particularly with mild-hybrid systems and advanced emissions controls, introduces specific points of attention for lon
The Mercedes-Benz CLS C257 is a truly desirable car, offering a unique blend of style, luxury, and performance. For those prioritizing long-term reliability and lower complexity, the OM656 diesel engines (CLS 350 d / 400 d) are generally the most robust choice, provided their AdBlue and DPF systems are meticulously maintained. They offer excellent power and efficiency for highway cruising. The M256 mild-hybrid petrol engines (CLS 450 / AMG 53) deliver exceptional refinement and performance but come with the added complexity and potential for issues with the 48V system (auxiliary battery, ISG). These are fantastic engines when working perfectly, but repairs can be very costly. Buying Advice: * ACHETER (Buy): A well-maintained CLS 350 d or 400 d with a full Mercedes service history, especially if your usage involves regular longer journeys. Also, a CLS 350 (non-MHEV) can be a good option for lower complexity. * NÉGOCIER (Negotiate): CLS 450 or AMG 53 models. Be prepared to negotiate on price, especially if the 48V system's auxiliary battery hasn't been replaced or if there are any lingering electrical gremlins. Ensure a thorough pre-purchase inspection by a Mercedes specialist. * ÉVI