What are the most common Mercedes-Benz B-Class problems?
According to Au7o's analysis of 1,120+ owner reports, the 2013-2019 Mercedes-Benz B-Class has 3 documented issues. The most frequently reported are: Dual-Clutch Transmission (DCT) Shudder at Low Speeds, Turbocharger Oil Feed Line Leak, Electric Drive Motor Whine and Bearing Noise (B250e). None are rated critical, but regular maintenance is recommended.
Is the Mercedes-Benz B-Class reliable?
The 2013-2019 Mercedes-Benz B-Class has 3 known issues documented across 1,120+ owner reports. No issues are rated critical, suggesting generally good reliability. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
How much does it cost to fix common Mercedes-Benz B-Class problems?
Repair costs for known Mercedes-Benz B-Class issues range from $200 to $5,000, depending on the specific problem and whether you choose DIY or professional repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What year Mercedes-Benz B-Class is the most reliable?
Reliability varies across model years of the Mercedes-Benz B-Class. Based on owner reports, issues are most commonly reported in earlier model years. Au7o recommends checking the specific known issues for your target year before purchasing, and having a pre-purchase inspection performed by a qualified mechanic. Our known issues database covers the 2013-2019 Mercedes-Benz B-Class with 3 documented issues from 1,120+ owner reports.
What is the 2013-2019 Mercedes-Benz B-Class Dual-Clutch Transmission (DCT) Shudder at Low Speeds?
The 7-speed dual-clutch transmission (7G-DCT) in the B-Class develops a noticeable shudder during low-speed maneuvers and from a standstill. The issue stems from clutch pack wear and adaptive software that struggles to compensate as the clutch material thins over time. Repairs typically run $200-$3,500. Severity: medium.
What is the 2013-2019 Mercedes-Benz B-Class Turbocharger Oil Feed Line Leak?
The turbo oil feed line on the M270 engine in the B-Class develops leaks at the banjo bolt connection on top of the turbocharger. Oil drips onto the hot exhaust manifold, producing a burning oil smell and visible smoke from the engine bay. Repairs typically run $300-$900. Severity: medium.
What is the 2014-2017 Mercedes-Benz B-Class Electric Drive Motor Whine and Bearing Noise (B250e)?
The B250e electric drive unit produces an abnormal high-pitched whine or growling noise that increases with speed. The noise originates from worn bearings in the electric motor or the single-speed reduction gear. Tesla supplied the drivetrain components, and parts availability ha… Repairs typically run $800-$5,000. Severity: medium.
