What breaks most · 2014 to 2016 model years
Mercedes-Benz B-Class Electric problems by year
Owners have filed 50 safety complaints with NHTSA about the Mercedes-Benz B-Class Electric across model years 2014 to 2016. Three years stand out: 2015 for powertrain and transmission complaints, 2014 for powertrain and transmission complaints and 2016 for engine complaints.
- Years to check closely: 2015, 2014, 2016
- Complaints on file
- 502014 to 2016, all trims
- Worst year
- 201525 complaints
- Crashes reported
- 00 fires · 0 injuries · 0 deaths
- Typical failure mileage
- 4kMedian where owners gave mileage
- Recall campaigns
- 4Across the years shown
Complaints by model year
Raw filings with NHTSA, not adjusted for how many were sold.
| Model year | Complaints | Crashes | Recalls | Most-reported component |
|---|---|---|---|---|
| 20 | 0 | 2 | Powertrain and transmission (10) | |
| 25 | 0 | 2 | Powertrain and transmission (14) | |
| 5 | 0 | 0 | Engine (3) |
What fails on the 2015 Mercedes-Benz B-Class Electric
| Component | Share of complaints | Filings | Crashes | Parts for this job |
|---|---|---|---|---|
| Powertrain and transmissionTransmission parts | 56% |
14 | 0 | Shop all powertrain and transmission parts, not filtered to this vehicle |
| Fuel systemFuel pumps and injectors | 40% |
10 | 0 | Shop all fuel system parts, not filtered to this vehicle |
| EngineEngine gaskets and seals | 28% |
7 | 0 | Shop all engine parts, not filtered to this vehicle |
| Speed control and throttleThrottle and pedal sensors | 24% |
6 | 0 | Shop all speed control and throttle parts, not filtered to this vehicle |
| Electrical systemAlternators, starters and ignition | 20% |
5 | 0 | Shop all electrical system parts, not filtered to this vehicle |
| SteeringPower steering pumps, racks and hoses | 8% |
2 | 0 | Shop all steering parts, not filtered to this vehicle |
| Unknown or other | 8% |
2 | 0 | — |
One complaint can name more than one component, so shares add to more than 100%. "Unknown or other" is NHTSA's uncategorized bucket and is shown but never ranked.
In owners' words
Complaint narratives as filed with NHTSA, trimmed for length.
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Occasionally the car will lurch forward when coming to a stop. As you come to a stop it tries to propel the car forward as you are breaking and coming to a stop. Happens rarely but when it does it's a big safety concern.
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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. *js
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Drive unit failed. Manufacturer's Faulty coolant seal. Coolant leaked into engine, Dashboard displayed "Workshop" warning about 2-3 times before breakdown.
How to read this page
Every figure comes from the National Highway Traffic Safety Administration's public complaint database, which holds every safety-related defect complaint filed by owners since 1995. We refresh it monthly and count each complaint once per component it names. Data through September 6, 2026.
NHTSA only accepts safety-related complaints. Rattles, paint, infotainment bugs and other annoyances are under-reported here, so this page is a map of what fails in ways owners consider dangerous, not a full reliability score.
Counts are raw. Use the year-over-year shape and the component mix, not the absolute numbers. Where a component maps to parts we stock, the row links to that category filtered to the year you are viewing. Air bag and seat belt complaints link to the recall checker instead, because those repairs are almost always covered.
Common questions
Which Mercedes-Benz B-Class Electric years have the most problems?
By NHTSA complaint volume, 2015, 2014, 2016 carry the most filings on the Mercedes-Benz B-Class Electric. The 2015 alone has 25 complaints, led by powertrain and transmission.
What is the most common Mercedes-Benz B-Class Electric problem?
On the 2015 model year, the most-reported component is powertrain and transmission with 14 complaints. The table above lists the top components for every year.
At what mileage do Mercedes-Benz B-Class Electric problems start?
The median mileage at failure across all Mercedes-Benz B-Class Electric complaints that include mileage is about 4,000 miles. Older model years skew higher; the per-year figure is in the "at a glance" card.
Are these complaints verified?
No. NHTSA publishes complaints as submitted and does not investigate individual filings. Patterns across hundreds of complaints are meaningful; a single one is not.