B-Class E-Cell (2017)
Reliability Score
Complaints by Engine Code
Mercedes-Benz B-Class E-Cell Unidentified Engine
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Complaint Breakdown
Battery & Propulsion Reliability
Battery Electric (BEV)
Battery & propulsion complaint analysis for the 2017 Mercedes-Benz B-Class E-Cell
That's about 2.1x the typical rate for BEVs in this dataset (median 5.7 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.
Owner Complaints by System
Complaints owners filed with NHTSA about the Mercedes-Benz B-Class E-Cell, counted across every engine. A complaint can name more than one system.
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Frequently Asked Questions
What are the most common 2017-2017 Mercedes-Benz B-Class E-Cell complaints?
Owners have filed 20 complaints with NHTSA about the 2017-2017 Mercedes-Benz B-Class E-Cell. The systems they name most often are the engine, the transmission and the electrical system.
Is the 2017-2017 Mercedes-Benz B-Class E-Cell a good used car?
That depends on the model year, the mileage and the maintenance history of the car in front of you. Owners have filed 20 complaints with NHTSA about the 2017-2017 Mercedes-Benz B-Class E-Cell. Check which systems they name most often and whether a recall is still open on that car.
How many NHTSA complaints does the 2017-2017 Mercedes-Benz B-Class E-Cell have?
NHTSA has 20 owner complaints on file for the 2017-2017 Mercedes-Benz B-Class E-Cell as of the latest data pull. A complaint is an owner's report, not a confirmed defect, and counts rise with sales.
What recalls affect the 2017-2017 Mercedes-Benz B-Class E-Cell?
NHTSA lists no recalls for the 2017-2017 Mercedes-Benz B-Class E-Cell.
What should I check before buying a used Mercedes-Benz B-Class E-Cell?
Run the VIN through NHTSA's recall lookup and confirm every open recall has been done. Look hardest at the engine, the transmission and the electrical system, the systems owners complain about most. Ask for maintenance records, have an independent mechanic inspect the car and run a vehicle history report for prior accidents and 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: 2026-10-12.