The second-generation Mercedes-Benz B-Class (codename W246) marks a complete break with its predecessor (W245). Gone is the complex and costly sandwich floor: the W246 is based on the MFA (Modular Front Architecture) platform, shared with the A-Class (W176). This change lowers the center of gravity, drastically improves road handling, and allows for a more conventional but significantly more premium interior. Facelifted in late 2014 (Phase 2), it corrected its early flaws (notably the firmness of the suspension) and modernized its infotainment. On the used car market, gasoline versions (M270 engine) are particularly sought after for their superior reliability compared to diesels in urban/suburban use, and their perfect suitability for the model's family vocation.
The Mercedes B-Class W246 is an excellent used car choice, particularly with its gasoline engines (B 180 and B 200). The M270 engine proves to be robust, quiet, and perfectly suited to the vehicle's philosophy, avoiding the DPF and EGR hassles of diesels in urban use. Opt for a facelifted model (after November 2014) to benefit from better suspension comfort, a refined finish, and a better calibrated 7G-DCT gearbox. The purchase is highly recommended under one strict condition: demand a clear service history, especially regarding the oil change for the dual-clutch automatic gearbox.