2015 Mercedes-Benz B 250E: common problems
Owners of the 2015 Mercedes-Benz B 250E filed 3 complaints with NHTSA, most often about seat belts and engine. Details by component below, with sources.
Key figures
- Owner complaints
- 3
What fails most often
- 1 Seat belts 67% of all complaints
- 2 Engine 33% of all complaints
- 3 Powertrain 33% of all complaints
- 4 Service brakes 33% of all complaints
- 5 Steering 33% of all complaints
- Seat belts: 2 complaints (67% of all).
- Engine: 1 complaints (33% of all).
- Powertrain: 1 complaints (33% of all).
- Service brakes: 1 complaints (33% of all).
- Steering: 1 complaints (33% of all).
Symptoms owners describe
How many of the 3 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Seat belts | 2 | 0 | 0 |
| Engine | 1 | 0 | 0 |
| Powertrain | 1 | 0 | 0 |
| Service brakes | 1 | 0 | 0 |
| Steering | 1 | 0 | 0 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
Stacy belts will not retract they remain in a loosened state and I am afraid they will not lock in an accident
Seat Belt Malfunction: The childrenâs seat belts are not retracting properly, posing a significant safety risk. Braking Issues: Despite being told the brakes are at 90%, they feel like they are grinding metal. This is highly concerning.
Motor/Drive Unit making "whirring" noise that got progressively worse over time. While under warranty MB dealer stated that everything was fine, now after the warranty has expired a different dealer says it is failing and needs to be replaced.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
Comparison
By complaint count this model year ranks 17,152 of 36,659 model years in the NHTSA data (top 47% most complained about).
On average one model year of the B 250E has 6 complaints (5 years in the data). This year has 3, below average.
What to check before buying
- Seat belts. Belt pretensioners after airbag deployment, SRS codes.
- Engine. Cold start, unusual noises, oil leaks and engine codes.
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
- Service brakes. Pedal feel, ABS operation, leaks, discs and hoses.
Other years of this model
Questions and answers
What are the most common problems with the 2015 Mercedes-Benz B 250E?
Owner complaints to NHTSA most often mention: seat belts, engine, powertrain. Total complaints: 3. The most frequent symptoms in complaint texts: knocking, grinding or other noise (33%), seat belts (33%).
How many service bulletins (TSB) were issued for the 2015 Mercedes-Benz B 250E?
NHTSA lists 0 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2015 Mercedes-Benz B 250E from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2015 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-06.