2017 Mercedes-Benz B 250E Engine Problems
- Complaints
- 11about this part
- Share
- 55%of 20 total for the year
- Median mileage
- 44,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 11 complaints about the engine of the 2017 Mercedes-Benz B 250E, 55% of the 20 complaints for this model year. Where a mileage was given, the median is 44,000 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“When trying to leave a shopping complex in my Mercedes Benz B250e, the vehicle suddenly just wouldn't move in either drive or reverse. All instruments looked normal, there were no warnings or messages on the console, and the vehicle was fully charged, but the electric motor just would not engage even though the transmission was engaged. The vehicle was towed to the nearness Mercedes Benz dealership in Littleton, where they diagnosed the problem simply as a failed electric drive . …”
NHTSA complaint #11468355, filed 2022-06, 16,000 miles“The electric motor is destined to fail because of a coolant leak at the speed sensor. According to many accounts the motor will fail and lock up the system. My car has not yet failed but I fear an accident will happen depending on where it falls. My extended warranty from Endurance is no help as they denied coverage for the motor. I have no alternative transportation and am out $17000 on the car.”
NHTSA complaint #11490473, filed 2022-10“The contact owns a 2017 Mercedes-Benz B250E. The contact stated while driving approximately 60 MPH, the vehicle the lost automotive power and stalled. The message Shut Off Immediately was displayed. The vehicle was later towed to the residence. The cause of the failure was not yet determined. The local dealer was notified of the failure. The manufacturer was not yet contacted. The failure mileage was 72,000.”
NHTSA complaint #11618068, filed 2024-10, 72,000 miles“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 problem prior to the failure. After the car stalls on the street, a failure message appeared asking to send the car to the shop.”
NHTSA complaint #11553101, filed 2023-11“Coolant leaked into drive unit causing total failure. This is a known issue and should be subject to a recall of these cars. As a dealer we’ve had repeated issues with this.”
NHTSA complaint #11467276, filed 2022-06Related service bulletins
- 11034064Jun 19, 2026Dear Mercedes-Benz USA Dealers, The part numbers listed in the chart below should no longer be installed, and any existing stock must be returned to your facing PDC. The deadline…
Engine: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2017 | 11 | 55% |
Other parts of the 2017 Mercedes-Benz B 250E
10 complaintsElectrical system
8 complaintsFuel system
5 complaintsBrakes
1 complaintsOther or unknown
1 complaintsSeat belts
1 complaintsSuspension
1 complaintsVehicle speed control
1 complaints
← All problems reported for the 2017 Mercedes-Benz B 250E
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology