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Electrical systemPart report

2014 Mercedes-Benz B-Class Electric Electrical system Problems

Complaints
7about this part
Share
35%of 20 total for the year
Median mileage
10,092miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 7 complaints about the electrical system of the 2014 Mercedes-Benz B-Class Electric, 35% of the 20 complaints for this model year. Where a mileage was given, the median is 10,092 miles. 1 recall campaign on record is filed under a similar system.

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.

“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

“In preparing to leave a parking lot on november 23, 2016 in hillsboro, oregon, the b-class Mercedes-Benz electric drive automobile refused to move and a message appeared in the instrument panel saying have me towed to a dealer or somesuch. Vehicle was transported to beaverton, oregon Mercedes-Benz where the diagnosis was a defunct main traction battery. Battery, which costs about 90 percent of the msrp of the automobile, was ordered from germany and arrived on or about december 9, 2016 as a warranty replacement. Vehicle is reported to be ready for pick up on december 15. …”

NHTSA complaint #10935178, filed 2016-12, 20,000 miles

“The contact owns a 2014 mercedes benz B-Class Electric. While driving 35 MPH, the vehicle lost all power without warning. The contact was able to steer the vehicle into a parking lot. The vehicle was towed to the dealer, but the cause of the failure was not determined. The vehicle was repaired. The manufacturer was not made aware of the failure. The failure mileage was 3,827.”

NHTSA complaint #10734877, filed 2015-07, 3,827 miles

“Electric charger cable burnt itself and causing fire danger. Mercedes does not give support for this fire hazard. These electric chargers are used at home (in garage) etc. While charging the electric car. Mercedes does not stay behind its electric charger that causes extreme danger.”

NHTSA complaint #11013467, filed 2017-08

Related recalls

Related service bulletins

Electrical system: other model years

YearComplaintsShare of year
2016120%
2015520%
2014735%

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

Transmission and drivetrain
10 complaints
Engine
6 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