AI DamageMercedes-Benz EQB 350 4matic: problems, complaints, bulletins
Summary for the Mercedes-Benz EQB 350 4matic across 4 model years: 21 owner complaints and 159 NHTSA service bulletins, plus repair videos. Pick a year for details.
Model years
What fails most often
- 1 Electrical system 81% of all complaints
- 2 Fuel/propulsion system 38% of all complaints
- 3 Engine 10% of all complaints
- 4 Powertrain 10% of all complaints
- 5 Structure 5% of all complaints
- Electrical system: 17 complaints (81% of all); manufacturer bulletins for this component: 322.
- Fuel/propulsion system: 8 complaints (38% of all).
- Engine: 2 complaints (10% of all); manufacturer bulletins for this component: 19.
- Powertrain: 2 complaints (10% of all); manufacturer bulletins for this component: 8.
- Structure: 1 complaints (5% of all); manufacturer bulletins for this component: 54.
Engines and transmissions
US-market versions per EPA. On the right: how many NHTSA complaints name this engine or transmission type.
- electric 2022–2025
- automatic, 1-speed 2022–2025
Drive: AWD
Symptoms owners describe
How many of the 21 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Electrical system | 17 | 0 | 322 |
| Fuel/propulsion system | 8 | 0 | 0 |
| Engine | 2 | 0 | 19 |
| Powertrain | 2 | 0 | 8 |
| Structure | 1 | 0 | 54 |
| Visibility | 0 | 0 | 50 |
| Steering | 0 | 0 | 40 |
| Exterior lighting | 0 | 0 | 38 |
| Suspension | 0 | 0 | 20 |
| Service brakes | 0 | 0 | 16 |
| Lane departure | 0 | 0 | 14 |
| Backover prevention | 0 | 0 | 12 |
| Forward collision avoidance | 0 | 0 | 10 |
| Engine and cooling | 0 | 0 | 2 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
Vehicle: 2023 Mercedes-Benz EQB 350 4MATIC Recall Reference: NHTSA Campaign #26V073 / High-Voltage Battery Fire Hazard My vehicle is subject to an active safety recall concerning internal high-voltage battery failure that poses a direct risk of a vehicle fire while driving or parked.
The contact stated that while driving at an undisclosed speed, a malfunction warning message indicated the vehicle would not restart. The vehicle was taken to multiple dealers, where it was confirmed that the parts were not available.
My vehicle battery overheated. The dealership was unable to identify the cause. I have since learned there is a battery recall on this make and model, and I believe the recall needs to be expanded to include my vehicle and the overheating was likely caused by the battery failing.
My 2022 Mercedes-Benz EQB 350 4MATIC (VIN [XXX]) is subject to NHTSA Recall 26V073 / MBUSA campaign [phone] for a high-voltage battery defect that may cause a thermal event/fire while parked or driving.
The contact stated that while the vehicle was parked, the vehicle failed to start for approximately five minutes. The contact stated that while driving at an undisclosed speed, the battery was at 80 percent and then fell to 50 percent extremely quickly. While charging the battery, the battery failed to fully charge.
The recall is classified as URGENT: FIRE RISK WHEN PARKED on NHTSA's website for my specific vehicle. On May 6-7, 2026 I contacted Mercedes customer service three times and received conflicting safety guidance. Agent 1 told me charging above 80% was acceptable and did not advise outdoor parking.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
What to check before buying
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Fuel/propulsion system. Fuel smell, leaks, rough running, fuel-system codes.
- Engine. Cold start, unusual noises, oil leaks and engine codes.
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- Complaint Clanking noise from the area of the speakers in the doors
- Complaint Slight creaking noises when steering
- Complaint Repeat workshop visit for vehicle vibration while braking from 60MPH. NOTE
- Complaint Radio station cover art does not refresh when switching stations
- Complaint During part of the steering movement, it feels heavier or more difficult to steer in the same…
- Complaint Tailgate opens unintentionally
- Complaint Customer Complaint
- Complaint 1
- Complaint AC and DC charging are not possible
- Complaint Clanking noise from the area of the speakers in the doors
- Complaint CEL light on with no drivability concerns. Cause Signal timing error. Remedy 167, 465
- Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end)
Repair videos
We do not copy videos: these are YouTube links credited to their authors. Amounts are as stated by the author and not verified by us.
Other models of this make
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-05.