What breaks most · 2022 to 2025 model years
Mercedes-Benz EQB 300 4MATIC problems by year
Owners have filed 69 safety complaints with NHTSA about the Mercedes-Benz EQB 300 4MATIC across model years 2022 to 2025. Three years stand out: 2023 for electrical system complaints, 2022 for electrical system complaints and 2024 for electrical system complaints.
- Years to check closely: 2023, 2022, 2024
- Complaints on file
- 692022 to 2025, all trims
- Worst year
- 202353 complaints
- Crashes reported
- 20 fires · 0 injuries · 0 deaths
- Typical failure mileage
- 20kMedian where owners gave mileage
- Recall campaigns
- 11Across 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 |
|---|---|---|---|---|
| 8 | 0 | 5 | Electrical system (8) | |
| 53 | 1 | 4 | Electrical system (38) | |
| 6 | 1 | 2 | Electrical system (3) | |
| 2 | 0 | 0 | Electrical system (1) |
What fails on the 2023 Mercedes-Benz EQB 300 4MATIC
| Component | Share of complaints | Filings | Crashes | Parts for this job |
|---|---|---|---|---|
| Electrical systemAlternators, starters and ignition | 72% |
38 | 0 | Shop all electrical system parts, not filtered to this vehicle |
| Unknown or other | 17% |
9 | 0 | — |
| Fuel systemFuel pumps and injectors | 17% |
9 | 0 | Shop all fuel system parts, not filtered to this vehicle |
| EngineEngine gaskets and seals | 11% |
6 | 0 | Shop all engine parts, not filtered to this vehicle |
| Powertrain and transmissionTransmission parts | 9% |
5 | 0 | Shop all powertrain and transmission parts, not filtered to this vehicle |
| Forward collision systemRadar and camera sensors | 6% |
3 | 0 | Shop all forward collision system parts, not filtered to this vehicle |
| BrakesBrake pads, rotors and calipers | 4% |
2 | 1 | Shop brakes parts for the 2023 Mercedes-Benz EQB 300 4MATIC |
| Wipers and visibilityWiper motors and blades | 2% |
1 | 0 | Shop all wipers and visibility parts, not filtered to this vehicle |
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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Spoke with MB today and was told that the new battery for this recall would be available in late 2026 and that until then I should only park outside and not charge past 80%. When asked for a loaner car until they fixed the issue I was told no. Afraid to drive and or charge
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For two months my EQB has been signaling high voltage when I charge it also now I’m having a problem connecting the plug to charge my car it shows red light has faulty it’s at the shop for a week now and I haven’t gotten updates about my car the cameras as well are turning black not working.
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 EQB 300 4MATIC years have the most problems?
By NHTSA complaint volume, 2023, 2022, 2024 carry the most filings on the Mercedes-Benz EQB 300 4MATIC. The 2023 alone has 53 complaints, led by electrical system.
What is the most common Mercedes-Benz EQB 300 4MATIC problem?
On the 2023 model year, the most-reported component is electrical system with 38 complaints. The table above lists the top components for every year.
At what mileage do Mercedes-Benz EQB 300 4MATIC problems start?
The median mileage at failure across all Mercedes-Benz EQB 300 4MATIC complaints that include mileage is about 20,000 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.