B-Class E-Cell (2015)
Engine Reliability Ratings
Mercedes-Benz B-Class E-Cell Unidentified Engine
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Complaint Breakdown
Known Issues
Battery & Propulsion Reliability
Battery Electric (BEV)
Battery & propulsion complaint analysis for the 2015 Mercedes-Benz B-Class E-Cell
That's about 2.0x the typical rate for BEVs in this dataset (median 5.5 per year). Above peer average — but high-volume models naturally produce more raw complaints, so check the issue mix below before drawing conclusions.
What kind of battery complaint?
Among the 11 battery-related complaints, here's the type mix. These percentages describe what the complaints are about — not how reliable the vehicle is overall.
Loss of power, drive unit, inverter, traction motor, DC-DC converter.
Sample complaint excerpts
Electric Propulsion
- [2015] MERCEDES DEALER NOTES : 07/19/2022 CLIENT STATES STEERING IS STIFF. STARTED ABOUT 1 TO 2 MONTHS AGO AND WOULD SHOW UP ONCE AND AWHILE. WHEN IT WOULD ACT UP WOULD NOT DRIVE IT AND IT WOULD LOCK THE STEERING . THIS HAPPENED MULTIPLE TIMES, WITH ACCIDENT HAZARD. WE DID THE BELOW WORK. ELECTRIC POWER STEERING RACK FAULTY REPLACE COMPLETE ELECTRIC POWER STEERING RACK. WHICH COST US OVER $3000. NOW WE
- [2015] The electric motor was leaking coolant and needs to be replaced. I have read countless accounts that this is a known issue with this car.
- [2015] Failure of seals and or bearings in the electric motor causing coolant to leak into the electric motor, creating an internal electrical fault, seizing electric motor.
Source: classified from NHTSA complaint and recall data. "Battery-related" includes high-voltage propulsion battery, charging system, hybrid drivetrain, electric propulsion, regenerative braking, 12V auxiliary battery, and thermal-event complaints. Other complaints (suspension, steering, brakes, infotainment) appear in the engine and vehicle-level sections. Rates are absolute counts, not normalized per-VIN — high-volume models naturally produce more raw complaints than low-volume ones. Self-reported death and injury counts are capped per complaint to limit form abuse.
Vehicle-Level Issues
These issues affect the Mercedes-Benz B-Class E-Cell regardless of engine variant.
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Frequently Asked Questions
What are the most common 2015-2015 Mercedes-Benz B-Class E-Cell problems?
The 2015-2015 Mercedes-Benz B-Class E-Cell has accumulated 25 NHTSA complaints. The most frequently reported problem areas are Transmission, Fuel System, Engine. As with any used vehicle, an inspection before buying and a vehicle history report are recommended.
Which Mercedes-Benz B-Class E-Cell engine is most reliable?
The 2015-2015 Mercedes-Benz B-Class E-Cell was offered with 1 engine option. Based on NHTSA complaint data, the Mercedes-Benz B-Class E-Cell Unidentified Engine has the lowest complaint density and is considered the most reliable choice for buyers.
Is the 2015-2015 Mercedes-Benz B-Class E-Cell a good used car?
The 2015-2015 Mercedes-Benz B-Class E-Cell can be a sound used car depending on trim, mileage, and maintenance history. With 25 total NHTSA complaints on record, prospective buyers should review the known problem areas and check for open recalls before buying.
How many NHTSA complaints does the 2015-2015 Mercedes-Benz B-Class E-Cell have?
The 2015-2015 Mercedes-Benz B-Class E-Cell has 25 complaints filed with NHTSA as of our latest data pull. Complaint counts reflect owner-reported issues and do not necessarily indicate defects or safety risks on their own.
What recalls affect the 2015-2015 Mercedes-Benz B-Class E-Cell?
There are 0 NHTSA recalls affecting some 2015-2015 Mercedes-Benz B-Class E-Cell vehicles. Recall status varies by VIN — check the NHTSA recall database at recalls.nhtsa.dot.gov with your specific VIN to confirm which campaigns apply.
What should I check before buying a used Mercedes-Benz B-Class E-Cell?
Before buying a used Mercedes-Benz B-Class E-Cell, verify all open recalls are completed via the NHTSA VIN lookup tool. Pay particular attention to Transmission, Fuel System, Engine, which are the most commonly reported problem areas. Request maintenance records, have an independent mechanic inspect the vehicle, and run a vehicle history report to check for prior accidents or title issues.
Does the B-Class E-Cell have NHTSA crash test ratings?
NHTSA has not published crash test ratings for the 2015 Mercedes-Benz B-Class E-Cell. Not all vehicles are tested each year. For the latest NHTSA safety information, visit nhtsa.gov/ratings.
Data from NHTSA federal complaints database. 25 complaints analyzed. Data confidence: low. Last updated: 2026-05-23.