AI Damage2025 Mercedes-Benz EQB 300 4matic: common problems
Owners of the 2025 Mercedes-Benz EQB 300 4matic filed 2 complaints with NHTSA, most often about electrical system and fuel/propulsion system. The maker issued 98 service bulletins for this year. Details by component below, with sources.
Key figures
- Owner complaints
- 2
- Technical service bulletins (TSB)
- 98
What fails most often
- 1 Electrical system 50% of all complaints
- 2 Fuel/propulsion system 50% of all complaints
- 3 Vehicle speed control 50% of all complaints
- Electrical system: 1 complaints (50% of all); manufacturer bulletins for this component: 61.
- Fuel/propulsion system: 1 complaints (50% of all).
- Vehicle speed control: 1 complaints (50% of all).
Engines and transmissions
US-market versions per EPA. On the right: how many NHTSA complaints name this engine or transmission type.
- electric
- automatic, 1-speed
Drive: AWD
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Electrical system | 1 | 0 | 61 |
| Fuel/propulsion system | 1 | 0 | 0 |
| Vehicle speed control | 1 | 0 | 0 |
| Visibility | 0 | 0 | 9 |
| Steering | 0 | 0 | 8 |
| Structure | 0 | 0 | 7 |
| Exterior lighting | 0 | 0 | 5 |
| Engine | 0 | 0 | 4 |
| Suspension | 0 | 0 | 4 |
| Backover prevention | 0 | 0 | 3 |
| Service brakes | 0 | 0 | 3 |
| Lane departure | 0 | 0 | 2 |
| Powertrain | 0 | 0 | 2 |
| Forward collision avoidance | 0 | 0 | 1 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
I was driving my 2025 Mercedes EQB home after work August 11, 2026 and reached the end of my cul de sac, slowly turning left into my carport. As the front tires reached the sidewalk the car suddenly accelerated at extremely shocking high speed heading straight towards another car parked in there and the front wall.
Additionally, a couple weeks ago, my entire screen (speedometer, maps, etc) went blank while driving. I believe there was an electric "pop" right as this happened. The screen rebooted and came back after about a minute, but then it happened again on the same drive within a couple minutes.
Comparison
By complaint count this model year ranks 19,879 of 36,656 model years in the NHTSA data (among the 46% least complained about).
On average one model year of the EQB 300 4matic has 19 complaints (4 years in the data). This year has 2, below average.
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.
- Vehicle speed control. Accelerator pedal, cruise control, throttle codes.
- Visibility. Wipers, mirrors, defrosters, cracked glass.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- Complaint Clanking noise from the area of the speakers in the doors
Cause Under analysis. Remedy To narrow down the cause, first of all remove the door trim. • If the noise continues to occur even with the door trim removed, then continue the diagnosis working towards the speaker and…
- Complaint Slight creaking noises when steering
Cause Noises may come from one or more sleeves of the horn contact plate. Remedy Remove the horn contact plate and check the sleeves for noise; see attached video. If necessary, apply lubricant to the sleeves.
- Complaint Repeat workshop visit for vehicle vibration while braking from 60MPH. NOTE
Although the symptom is similar to a tire or wheel vibration, it is usually readily noticeable that it is distinctly different if it happens at all times or only while braking. Cause Although the cause of the vibration…
- Complaint Radio station cover art does not refresh when switching stations
The UI continues to show the old station’s artwork instead of updating to the new one. Cause When a new station change request is triggered, a temporary glitch is causing the Head Unit application to fail to overwrite…
- Complaint During part of the steering movement, it feels heavier or more difficult to steer in the same…
Complaint During part of the steering movement, it feels heavier or more difficult to steer in the same spot every time. OR Rattling, humming, dry sliding/gravel noise from the electric steering system when steering…
- Complaint Tailgate opens unintentionally
Cause Accidental or unnoticed activation of the button to open the tailgate on the vehicle key. EXAMPLE: when stored in trouser pocket, handbag etc. Remedy As of the 6th generation, the vehicle key can be recoded so…
- Complaint Customer Complaint
AC charging is not possible. - The departure time, charging pause, location-based charging or target SOC limit is automatically set to 50% or to a random value in the Mercedes me application or in the charging settings…
- Complaint 1
General Diagnostic Tips 2. One or More PARK Sensor Activations 3. Red Ring Around Vehicle 4. "Active Parking and Parking Assist Inoperative" on Instrument Cluster 5. Cameras 6. Other Park Topics. Cause Various root…
- Complaint AC and DC charging are not possible
The white LED on the charging inlet completely goes OFF after plugging in the charging cable. Related DTCs in quick test: There are no related fault codes (DTCs) stored in relevant control units. CPC3 - N127…
- Complaint CEL light on with no drivability concerns. Cause Signal timing error. Remedy 167, 465
SW has been released. Update the FSAM to the latest SW version. 290, 118, 243, 247: Software is still in development. This fault code does not cause a drivability concern and will clear itself within 2-3 key cycles…
- Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end)
The noise is heard once in each instance when changing direction of travel. Note: Sound file in attachment Cause If the complaint is eliminated by experimentally loosening the outboard collar nut (by 1 turn), the…
- Complaint CEL light on with no drivability concerns. Cause Signal timing error. Remedy 167
SW has been released. Update the FSAM to the latest SW version. 465, 290, 118, 243, 247: Software is still in development. This fault code does not cause a drivability concern and will clear itself within 2-3 key…
NHTSA lists 98 bulletins for this year; the 12 newest are shown here.
Other years of this model
Questions and answers
What are the most common problems with the 2025 Mercedes-Benz EQB 300 4matic?
Owner complaints to NHTSA most often mention: electrical system, fuel/propulsion system, vehicle speed control. Total complaints: 2. The most frequent symptoms in complaint texts: infotainment or screen glitches (50%).
How many service bulletins (TSB) were issued for the 2025 Mercedes-Benz EQB 300 4matic?
NHTSA lists 98 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2025 Mercedes-Benz EQB 300 4matic from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2025 models
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.