2023 Mercedes-Benz EQB 300 4MATIC: complaints, problems and recalls

There is a reflective chrome accent on the dashboard of the EQB 300 that reflects sunlight directly into the drivers eyes when the car is oriented in certain directions at certain times of day. The light is blinding and impacts the ability of the driver to see the road and respond appropriately. I notified the dealership and Mercedes customer service, and they said there was nothing that they could do and that this was a buyer beware type situation.

Owner-reported narrative. Look up ODI 11556308 at NHTSA ↗

We were driving along a 4 lane state road and the car suddenly applied the brakes hard and swerved to the right. A light blinked on the dash with a picture of the car and a red line on the right hand side. No cars were in the next lane over and there were no issues with the roadway. I was driving straight in the line and not near the left hand side of the Lane.

Owner-reported narrative. Look up ODI 11558792 at NHTSA ↗

Within one week of car purchase, the car is alerting that the SRS system is not working and it needs to be taken to a dealership. Dealership doesn't have am timeline on when they will be able to fix it.

Owner-reported narrative. Look up ODI 11559516 at NHTSA ↗

Since new in April 2023, I have had 6 flat tires in less than 12,000 miles. Always the same failure mode: tearing by rock chips. I have been advised by the Mercedes dealer that at my own expense, I can replace the tires. The tire dealer noted that the low profile wheel/tire combination as this vehicle has as standard equipment, is subject to rock tears. This is an SUV and there is no advice to avoid gravel roads such as my own driveway. This vehicle is unreliable. I have had the same driveway since 2006 with no history of flat tires.

Owner-reported narrative. Look up ODI 11560751 at NHTSA ↗

The contact owns a 2023 Mercedes-Benz EQB300. The contact stated that while driving 60 MPH, the vehicle lost automotive power and decelerated to 30 MPH. The contact drove the vehicle to a local charging station to recharge the battery; however, the vehicle failed to recharge. No warning lights were illuminated. The vehicle was towed to a local dealer where the vehicle was diagnosed, and the contact was informed that the battery had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The …

Owner-reported narrative. 5,000 miles reported. Look up ODI 11628579 at NHTSA ↗

The EQB is advertised by Mercedes of having a range of 232 to 260 miles. The actual range currently is 145 miles, far less than what Mercedes advertises. I understand winter charging decrease range but not by 38 percent. That’s not acceptable. There are 4 EV’s at my dealer today all complaining about lack of advertised range. My car has been into service three times over the last month and will be going back in soon forms fourth time. The first two times, the dealer updated EV software, resolved a battery fault and the range only gets wor…

Owner-reported narrative. Look up ODI 11633248 at NHTSA ↗

The contact owns a 2023 Mercedes-Benz EQB 300. The contact stated that his wife was parking inside the garage, and the brake pedal was depressed she felt the brake pedal was vibrating, and the vehicle then accelerated independently. The contact stated that after several times depressing the brake pedal, the vehicle was able to come to a stop. It was unknown if the warning lights illuminated. On a separate occasion, the contact was driving at 5 MPH coming to a stop, the brake pedal was released and felt abnormal vibration; the vehicle then accel…

Owner-reported narrative. 20,000 miles reported. Look up ODI 11641405 at NHTSA ↗

When driving above 40 mph, I have experienced seemingly random brakes, which most likely is due to the automatic emergency braking system. I have seen it work properly when a car cuts me off in traffic, which it makes sense then. But in several instances, it's pumped the brakes when there is no obstacle or car around. It's quite scary since you might get hit from behind. One time it braked so suddenly I was jolted forward in my seat. It also has an issue with parking sensors going off also randomly going under 10 mph. All of them activ…

Owner-reported narrative. Look up ODI 11642086 at NHTSA ↗

Reported: 2025-02-07 (February 7, 2025)

Mercedes-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 internally and lead to a vehicle fire while parked or driving.

Consequence: A vehicle fire while parked or driving can increase the risk of injury.

Remedy: Owners are advised to only charge their vehicles to a maximum of 80% battery capacity until the repair has been completed. Dealers will update the battery management system software, free of charge. Owner notification letters were mailed on May 22, 2025. This is a phased recall. Phase 1 owner letters were mailed on May 22, 2025. Phase 2 owner letters were mailed on October 31, 2025 and Phase 3 owner letters were mailed on December 12, 2025. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2025040005.

Reported: 2025-07-25 (July 25, 2025)

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2022-2023 EQB 350 4MATIC, and EQB 300 4MATIC vehicles. The bus bar in the high voltage battery may be secured with incorrect screws, which can cause the system to have a sudden loss of drive power without warning.

Consequence: A loss of drive power increases the risk of a crash.

Remedy: Owners are advised to park outside until the recall repair is complete. Dealers will inspect and replace the high-voltage battery as necessary, free of charge. This will be a phased campaign, with the remedy becoming available in different phases based on model and model years. Owner notification letters were mailed January 9, 2026. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2025080004.

Reported: 2025-12-19 (December 19, 2025)

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2023 EQB 250, 2022-2023 EQB 300 4MATIC, and EQB 350 4MATIC vehicles. The high voltage battery may fail internally and lead to a vehicle fire while parked or driving.

Consequence: A vehicle fire while parked or driving can increase the risk of injury.

Remedy: Owners are advised to only charge their vehicles to a maximum of 80% battery capacity until the repair has been completed. Vehicles previously repaired under Recall 25V050 will need to be repaired again. Dealers will update the battery management system software, free of charge. Owner notification letters were mailed February 6, 2026. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2025120005. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov on December 23, 2025.

Reported: 2026-02-06 (February 6, 2026)

Mercedes-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 fail internally and lead to a vehicle fire while parked or driving.

Consequence: A vehicle fire while parked or driving can increase the risk of injury.

Remedy: Owners are advised to park outside and away from structures until the recall repair is complete. Also, owners are advised to only charge their vehicles to a maximum of 80% battery capacity until the remedy has been completed. Dealers will replace the high voltage battery, free of charge. Interim letters, notifying owners of the safety risk, were mailed March 13, 2026. Additional letters will be sent once the final remedy is available. This recall replaces recalls 25V050 and 25V894. Vehicles previously repaired under recall 25V050 or 25V894 will need to have the new remedy completed. Owners may contact MBUSA customer service at 1-800-367-6372. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning February 13, 2026.