Skip to content
EnginePart report

2014 Mercedes-Benz B-Class Electric Engine Problems

Complaints
6about this part
Share
30%of 20 total for the year
Median mileage
30,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 6 complaints about the engine of the 2014 Mercedes-Benz B-Class Electric, 30% of the 20 complaints for this model year. Where a mileage was given, the median is 30,000 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.

“On september 20th, 2018, the car suffered a sudden and abrupt catastrophic shut down while I was driving my son to school. We were on city streets driving straight at normal speed and it stalled right in an intersection but I was lucky to be able to still have some momentum to get into the left turn lane. There was a flashing red text warning on the display for a few seconds- something about turn off immediately and do not restart. Then the car shut down. I was terrified that we would get into an accident all throughout the time we had to wait for the tow truck. …”

NHTSA complaint #11140783, filed 2018-10, 45,559 miles

“While operating the vehicle on the road the car lost the ability to accelerate beyond 10 mile per hour; fortunately, we were just blocks away from our home. My wife call the service center and they picked it up and provided her with a loaner. While driving at 35 MPH, the vehicle decelerated without warning. The vehicle was taken to the dealer for diagnostic testing. The technician performed a software update on the vehicle. The vehicle was repaired. The manufacturer was notified of the failure. The approximate failure mileage was 8,184.”

NHTSA complaint #10778583, filed 2015-09, 8,184 miles

“I was cruising down a pretty busy main street. As I was trying to manuever in traffic, I sensed that as I was pressing on the gas, the car was unresponsive. I looked at the dash and noticed the car had moved itself into neutral. I tried to turn the key, but nothing happened. The car was unresponsive, but still on (from the look of the dashboard). I quickly tried to coast to the side of the road, in between speeding traffic, which was very dangerous, as I was near the highway onramp area. Once I safely pulled aside, I tried to again turn the car on using the key. Again the car was unresponsive. …”

NHTSA complaint #10743359, filed 2015-07, 4,910 miles

“The malfunction light appeared and vehicle lost power immediately. After coming to a complete stop, then switching the ignition off and back on again, the car operated normally and the malfunction light disappears. This occurred three times: during highway driving (55 MPH), on a country road (45 MPH), and at almost a stop (5 MPH). One occurrence was in the early evening on a hot day and two were early in the morning when temperatures were cool. Two of these failures were very dangerous circumstances and it is very lucky that no one was nearby on the road at that time. …”

NHTSA complaint #11232921, filed 2019-07, 30,000 miles

“Extremely dangerous sudden loss of power while driving 70+ MPH on busy highway. Was almost involved in a serious traffic collision because it a stopped in the road. Attempts to restart the vehicle failed. Could not get the vehicle out of park and was unable to switch it into neutral to roll the vehicle out of the lane of high speed traffic. The inability to get the vehicle into neutral further compromised my safety and the safety of other drivers on the highway. Main low voltage 12v battery died soon after incident and created an issue for tow truck operator. …”

NHTSA complaint #10906967, filed 2016-09, 43,276 miles

Engine: other model years

YearComplaintsShare of year
2016360%
2015728%
2014630%

Other parts of the 2014 Mercedes-Benz B-Class Electric

Transmission and drivetrain
10 complaints
Electrical system
7 complaints
Brakes
3 complaints
Fuel system
3 complaints
Other or unknown
2 complaints
Engine cooling
1 complaints
Vehicle speed control
1 complaints
Visibility (wipers, defrost, mirrors)
1 complaints

← All problems reported for the 2014 Mercedes-Benz B-Class Electric

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