2024 Mercedes-Benz EQB 300 4MATIC Electrical system Problems
- Complaints
- 5about this part
- Share
- 63%of 8 total for the year
- Median mileage
- —not reported
- Trend
- Too newThis model year is less than 4 years old, so a trend is not meaningful yet.
NHTSA recorded 5 complaints about the electrical system of the 2024 Mercedes-Benz EQB 300 4MATIC, 63% of the 8 complaints for this model year. 2 of these say a crash was involved, according to the filers. 2 recall campaigns on record are 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.
“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.”
NHTSA complaint #11641571, filed 2025-02“I was driving very slowly down a residential side street and started to pull over to the right side to park behind a car. This parking spot was on a slight incline and the curb was made up of two slanted cobblestones. After I moved in to position within about 2 ft from the car in front of me, my car quickly accelerated and slammed in to it. While I did not notice it at the time, after noticing the nature of the damage to both cars, it appeared as though the car may have tried to swerve from the curb. …”
NHTSA complaint #11772501, filed 2026-10“I am submitting this complaint regarding a serious safety issue involving my vehicle. For an extended period of time, this vehicle has experienced recurring starting failures. On multiple occasions, the vehicle would not start, requiring service visits to the dealership. Despite repeated repair attempts, the dealership was unable to identify the root cause of the problem and typically performed only software updates. I was repeatedly informed that no specific defect could be found.Recently, the issue escalated into a much more dangerous event. …”
NHTSA complaint #11744337, filed 2026-06Related recalls
- 26V073000Feb 6, 2026Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2023-2024 EQB 250+, 2022-2024 EQB 300 4MATIC, and EQB 350 4MATIC vehicles. The high voltage battery may…Covers: Mercedes-Benz EQB 300 4MATIC 2022–2024, EQB 350 4MATIC 2022–2024, EQB 250+ 2023–2024
- 25V050000Feb 7, 2025Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2022-2025 EQB 250, EQB 300 4MATIC, and EQB 350 4MATIC electric vehicles. The high voltage battery may fail…Covers: Mercedes-Benz EQB 300 4MATIC 2022–2024, EQB 250+ 2022–2025, EQB 350 4MATIC 2022–2024
Related service bulletins
- 11038174Sep 15, 2026Complaint 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…
- 11036511Aug 24, 2026Complaint 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…
- 11036192Aug 12, 2026Complaint 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…
- 11036142Aug 12, 2026Complaint 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…
- 11036138Aug 11, 2026Complaint 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…
- 11035217Jul 24, 2026Complaint 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…
- 11034506Jul 2, 2026Complaint 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…
- 11033855Jun 12, 2026Complaint Service code B1 displayed in the customer menu does not match the workshop code displayed in the workshop menu, e.g., 505 or 550A, which includes a service A. Cause The…
- 11033722Jun 8, 2026Complaint "Weekly profile" pre-entry climate control setting not available in the climate control menu or grayed out in the Mercedes me connect App. Cause There may be…
- 11033185May 26, 2026Complaint After successful commissioning of the HERMES control unit (N112/9) with XENTRY Diagnosis DVD 03/2026, the message "SOS - service not activated" appears on the…
Electrical system: other model years
Other parts of the 2024 Mercedes-Benz EQB 300 4MATIC
2 complaintsOther or unknown
2 complaintsBrakes
1 complaintsForward collision avoidance
1 complaintsFuel system
1 complaintsVehicle speed control
1 complaints
← All problems reported for the 2024 Mercedes-Benz EQB 300 4MATIC
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Nov 1, 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