The 2014 Mercedes-Benz B-class has 21 owner-filed NHTSA complaints and 0 recalls on record. The most-reported areas are power train and electrical system. Owners most often flag \nb-class electric drive (b250e) motor failure — electric motor prone to internal coolant leaks, leading to extremely expensive replacement. frequency: recurrent.\n\nb-class electric drive (b250e) battery failure — battery pack replacement costs are "thousands and thousands of dollars." frequency: isolated.\n\npoor reliability from specific poorly maintained examples — instances of cars with "dodgy repairs" (e.g., badly repaired oil sump) leading to significant issues. frequency: isolated.\n\nmissing basic features (electric drive variant) — lack of interior hatch release, lack of backup camera (on a 2016 model). frequency: isolated.\n\nlow ground clearance — scraping the underside on speed bumps is reported as frequent. frequency: isolated.\n\nremarks\nthe owner feedback clearly delineates between the conventional internal combustion engine (ice) w246 b-class and the electric drive variant. the ice models enjoy a reputation for solid reliability and practicality, with one owner citing a reliability survey score of 96%. in stark contrast, the electric drive variant is portrayed as a high-risk ownership proposition once its extended battery/powertrain warranty has expired, primarily due to the cost of its tesla-supplied drivetrain components. the data suggests the vehicle's reputation is highly sensitive to maintenance history; a single poorly maintained example can lead to a negative assessment, while well-maintained examples are reported to be trouble-free. analysis based on approximately 15 substantive owner discussions focused on the b-class.
Source: NHTSA complaints and recalls filed for 2014 Mercedes-Benz B-class vehicles (US, public record).
\nSentiment is mixed and highly dependent on the specific powertrain and model year. The gasoline and diesel variants of the W246 generation are generally praised by owners for their practicality, spacious interior, comfortable ride, and fuel efficiency. They
Owner insights cover all generations of the B-class.