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Mercedes-Benz · NHTSA safety record

2024 Mercedes-Benz EQB 300 4Matic

Every safety complaint, recall and defect investigation the US government holds on this vehicle.

Owners have filed 8 safety complaints about the 2024 Mercedes-Benz EQB 300 4Matic with the US government. Of those, 2 describe a crash and no death is recorded. 2 recall campaigns are open against it, covering the electrical system.

The most complained-about system is the electrical system, named in 5 complaints, 63% of the total.

Compiled from NHTSA's complaint, recall and investigation files · Covers February 2025 to October 2026 · How this is counted

What is on file

8 complaints on file

8

Complaints

2

Describe a crash

0

Mention fire

0

People injured

0

Deaths

A complaint is an unverified account by the person who filed it, not a finding of fault. One complaint is one ODI number, which is how NHTSA counts them.

A recall is the manufacturer conceding a defect, and the repair is free. Whether one covers your particular car is a question only its VIN can answer, because a campaign covers a production range rather than a model year.

Which system owners named

Complaints naming each system
ELECTRICAL SYSTEM 5 · 63%
ENGINE 2 · 25%
UNKNOWN OR OTHER 2 · 25%
FORWARD COLLISION AVOIDANCE 1 · 13%
FUEL/PROPULSION SYSTEM 1 · 13%
SERVICE BRAKES 1 · 13%
VEHICLE SPEED CONTROL 1 · 13%
0 4 8

Red marks a system with a recall campaign against it. One complaint can name several systems, so these add up to more than 8.

When the complaints arrived

By the year NHTSA received them

By the year NHTSA received them, which is not the year the failures happened. They peaked in 2026 at 6.

8 6 4 2
25 26

This is the year the complaint was filed, not the year the failure happened. The range runs from 2025 to 2026, the last of them a part year, which is why its column is drawn faint.

Crash test ratings

NHTSA New Car Assessment Program

NHTSA has not crash tested the 2024 Mercedes-Benz EQB 300 4Matic. Its New Car Assessment Program tests a selection of each year's vehicles and does not reach motorcycles, heavy trucks, motorhomes or most low-volume models, so an absence here says nothing about how the vehicle would perform. It is not a low score.

What owners have reported about this vehicle is below, and it is a different question: a crash test measures what happens to the people inside in a controlled impact, while a complaint records what broke during ordinary use.

Recall campaigns

2 on file

ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY

26V073000 · February 6, 2026

Park outside until repaired

The defect
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.
The risk
A vehicle fire while parked or driving can increase the risk of injury.
The 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.

Mercedes-Benz USA, LLC · up to 11,895 vehicles across all model years covered

ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY

25V050000 · February 7, 2025

Park outside until repaired

The defect
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.
The risk
A vehicle fire while parked or driving can increase the risk of injury.
The 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.

Mercedes-Benz USA, LLC · up to 12,236 vehicles across all model years covered

In owners’ own words

Quoted from the complaint file

Quoted from NHTSA's complaint file. These are unverified accounts by the people who filed them, not findings of fault.

SERVICE BRAKES

crash · towed

On [XXX] at [XXX], while I was slowly moving my car into a parking spot, the vehicle suddenly stopped for a brief moment and then, within a second, unexpectedly accelerated forward without any input from me. The car jumped onto the pathway and collided with the glass door of the property located at [XXX] ". I attempted to control the car using the brakes immediately, but the vehicle was not responding and remained out of control. There were no alert sounds or warnings before or during the incident. The vehicle finally stopped only after hitting the glass door. I strongly believe this was caused by a software or system bug, as the sudden acceleration occurred without my intervention. Please

NHTSA complaint 11699909, quoted in part. Filed by an owner and not verified by NHTSA or by us.

ELECTRICAL SYSTEM

crash · towed

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. I believe the front sensors detected there was something in the way and the car swerved left hitting the parked car in front of me. There were no warnings before the event and I did not notice

NHTSA complaint 11772501, quoted in part. Filed by an owner and not verified by NHTSA or by us.

ELECTRICAL SYSTEM
I own a 2024 Mercedes-Benz EQB 300 4MATIC, VIN [XXX], manufactured in XXX. I am requesting a formal safety review regarding NHTSA recall 26V073, involving potential high-voltage battery fires. The official NHTSA recall report lists XXX, as the last affected vehicle production date. However, page 5 states that the supplier production correction became effective for vehicles produced from XXX onward. My vehicle was manufactured between these dates but does not appear to qualify for the replacement recall. I do have multiple battery charging failures. I have reached out to benz as well. Please open a formal customer assistance case, provide a case number, and respond in writing with the

NHTSA complaint 11770593, quoted in part. Filed by an owner and not verified by NHTSA or by us.

ELECTRICAL SYSTEM
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. While driving, the engine suddenly shut down without warning. The loss of engine power occurred during normal vehicle operation and created a

NHTSA complaint 11744337, quoted in part. Filed by an owner and not verified by NHTSA or by us.

FUEL/PROPULSION SYSTEM
My vehicle is not included in the current high voltage battery recall under NHTSA recall 26V073, as it has a manufacture date of 08/2024 per door jamb sticker, however, page 5 of the NHTSA report explicitly states “A change in the production procedure of our supplier ensures that this issue can no longer occur on vehicles produced from July 31, 2024 onwards.” This leaves car production between May and July 31 (and likely beyond!) unaccounted for in the recall. My car was built in August 2024, likely with a battery manufactured prior to July 31, 2024 with the defect. I believe my car should be included in the recall/affected vehicles given its production date and the date of production

NHTSA complaint 11727121, quoted in part. Filed by an owner and not verified by NHTSA or by us.

ENGINE
My vehicle is a 2024 Mercedes-Benz EQB 300. Despite the nationwide recall (NHTSA 26V073000) for high-voltage battery fire risk, the manufacturer is providing conflicting and dangerous safety information. I was verbally instructed by dealership representatives to park my vehicle outdoors and limit charging to 80% to avoid a fire hazard. However, when I requested written confirmation of these safety restrictions from MBUSA Corporate Retention (Case Manager: [XXX] ), my request was ignored The manufacturer refuses to put in writing that my vehicle is safe to park in my attached garage or charge to 100%, effectively leaving me with a fire hazard in my home while refusing to acknowledge the

NHTSA complaint 11724420, quoted in part. Filed by an owner and not verified by NHTSA or by us.

UNKNOWN OR OTHER
Although I have not experienced safety issues myself, this exact model+year combination has been recalled more than once: 2024 Mercedes EQB 300 4matic, and when I searched by my VIN it shows recall. I’m very concerned if my car is mistakenly not included - what if it has battery issue/fire risk but I am not aware? This poses huge safety risk on day to day driving. I request an investigation on this particular VIN and reasons of why it is not in the recall list despite all infos match.

NHTSA complaint 11718584. Filed by an owner and not verified by NHTSA or by us.

Compare

Other years of the Mercedes-Benz EQB 300 4Matic

Model year Complaints Recalls Deaths
2023 55 4 —
2022 11 5 —

Other 2024 Mercedes-Benz models

GLC 300 21 GLE 350 4Matic 14 Sprinter 2500 12 C 300 11 GLE 450 10 EQE 350+ 8 GLC 300 4Matic 8

Complaints on file, same model year.

Every Mercedes-Benz on this site — 232 vehicles.

If this is your car and a dealer keeps failing to fix it, your state's lemon law may require the manufacturer to replace it or buy it back. How many repair attempts it takes, and how long you have to file, is set by the state you bought in and by nothing on this page.

Where these numbers come from

A complaint is one owner's account and has not been verified by NHTSA or by us. A vehicle with more complaints is not necessarily worse: models that sold in larger numbers collect more of them. How this is counted.

Compiled and maintained by
Independent developer and analyst