B-Class E-Cell (2017)
Engine Reliability Ratings
Mercedes-Benz B-Class E-Cell Unidentified Engine
View details
Complaint Breakdown
Known Issues
Battery & Propulsion Reliability
Battery Electric (BEV)
Battery & propulsion complaint analysis for the 2017 Mercedes-Benz B-Class E-Cell
That's about 2.2x 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 12 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
- [2017] In November 2024, the vehicle indicated "add coolant". The vehicle was brought to Mercedes Benz of Scottsdale for servicing. The dealership apparently added coolant without advising me that the B250-E has a 100% chance of failure to the Drive Unit / coolant intrusion unless a small part is replaced before coolant leaks into the inverter/entire engine. A few weeks later - the vehicle, while trave
- [2017] On Wednesday [XXX] I was driving my electric vehicle to work. I exited the freeway and as soon as I stopped at the light for the off ramp a warning light indicator appeared stating Coolant Low. I found this odd as I was unaware of Electric Vehicles using Coolant. I clicked the OK button on the steering wheel and the message was acknowledged and disappeared from the screen. When the Light chang
- [2017] My car just stalled and was not able to move on the highway exit which caused a high risk for the safety of passengers and the safety of others. The car has been towed to a Mercedes Dealer in West Covina, California. and they indicate that the coolant leaked into the drive motor and caused the car to stop. Prior to this car stall, there was no warning lamp, messages, or other symptoms of the probl
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.
Alternatives in Luxury Sedan
Frequently Asked Questions
What are the most common 2017-2017 Mercedes-Benz B-Class E-Cell problems?
The 2017-2017 Mercedes-Benz B-Class E-Cell has accumulated 20 NHTSA complaints. The most frequently reported problem areas are Engine, Transmission, Electrical System. 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 2017-2017 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 2017-2017 Mercedes-Benz B-Class E-Cell a good used car?
The 2017-2017 Mercedes-Benz B-Class E-Cell can be a sound used car depending on trim, mileage, and maintenance history. With 20 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 2017-2017 Mercedes-Benz B-Class E-Cell have?
The 2017-2017 Mercedes-Benz B-Class E-Cell has 20 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 2017-2017 Mercedes-Benz B-Class E-Cell?
There are 0 NHTSA recalls affecting some 2017-2017 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 Engine, Transmission, Electrical System, 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 2017 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. 20 complaints analyzed. Data confidence: low. Last updated: 2026-05-23.