2023 Mercedes-Benz Eqb 300 4matic problems, complaints & recalls
Most-reported problem areas: Electrical System (24) · Fuel/Propulsion System (6) · Power Train (4)
🧭 Reliability snapshot
Compared against other Mercedes-Benz Eqb 300 4matic model years — complaint volume vs the model's median year, recalls and severity. How we score →
Safety recalls (4)
Electrical System:propulsion System:traction Battery 2026-02-06 · campaign 26V073000 · 11,895 vehicles ⚠ PARK OUTSIDE
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.
Risk: A vehicle fire while parked or driving can increase the risk of injury.
Fix: 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 prev
Electrical System:propulsion System:traction Battery 2025-12-19 · campaign 25V894000 · 169 vehicles ⚠ PARK OUTSIDE
Defect: 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.
Risk: A vehicle fire while parked or driving can increase the risk of injury.
Fix: 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
Electrical System:propulsion System:traction Battery 2025-07-25 · campaign 25V487000 · 660 vehicles ⚠ PARK OUTSIDE
Defect: 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.
Risk: A loss of drive power increases the risk of a crash.
Fix: 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.
Electrical System:propulsion System:traction Battery 2025-02-07 · campaign 25V050000 · 12,236 vehicles ⚠ PARK OUTSIDE
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.
Risk: A vehicle fire while parked or driving can increase the risk of injury.
Fix: 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 1-800-3
Service bulletins (156)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Steering 2026-09-26 · LI46.10-P-080896 · Service Bulletin/Repair Instructions
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.
Service Brakes 2026-09-22 · LI42.10-P-078779 · Service Bulletin/Repair Instructions
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 vibra
Electrical System 2026-09-15 · LI82.60-P-080383 · Service Bulletin/Repair Instructions
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 the pr
Structure:body 2026-09-14 · LI82.62-P-078631 · Service Bulletin/Repair Instructions
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 if necessary,
Steering 2026-08-28 · LI46.35-P-067339 · Service Bulletin/Repair Instructions
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 (see attachment). complaint does not impact the ability to safely steer or control
Structure:body 2026-08-24 · LI72.20-P-075746 · Service Bulletin/Repair Instructions
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 that the tailgate no longer opens as a res
Showing the 6 most recent of 156 bulletins. Search all of them free at nhtsa.gov.
What owners report
2026-09-16 · Electrical System“i own a 2023 mercedes-benz eqb 300 4matic. my vehicle has multiple unresolved high-voltage battery safety recalls. recall 25v050/mbusa campaign 2025040005 concerns a potential internal battery-cell short circuit and fire risk. i had the bms software update performed, but mercedes later issued recall 26v073 because the software remedy was not consi…”
2026-08-31 · Electrical System“i am the owner of a 2023 mercedes-benz eqb that has been identified as being affected by the current high-voltage battery safety recall. i recently contacted my authorized mercedes-benz dealer regarding the recall and was informed that the recall is currently pending for my vehicle and that the permanent remedy is not expected to begin until appro…”
2026-08-27 · Unknown Or Other“the affected component is the high-voltage traction battery and related battery management and bus-bar connection systems. my vehicle is available for inspection upon request. i am reporting a safety concern because my vehicle is subject to nhtsa recall 25v050, which identifies a risk that the high-voltage battery could fail internally and cause a…”
2026-08-13 · Unknown Or Other“vehicle: 2023 mercedes‑benz eqb vin: [xxx] mbusa case #: xxx nhtsa recall #: 26v073000 mercedes‑benz usa has mishandled recall 26v073000 (fire hazard) and left me without transportation. i was told the vehicle is unsafe to drive, which has caused significant anxiety, panic attacks, and ongoing stress because i have no safe way to commute or manage…”
2026-07-23 · Electrical System“see attached document for complaint.…”
2026-07-19 · Fuel/Propulsion System“there is a recall associated with this model that causes catastrophic stoppage without any ability to drive. my vehicle vin does not have a recall according to your site. despite this, my vehicle catastrophically stopped multiple times. it was repaired at least three times and still stopped in the middle of the highway. my partner and i were stoppe…”
2026-07-15 · Electrical System“the contact owns a 2023 mercedes-benz eqb 300 4matic. the contact received notification of nhtsa campaign number: 26v073000 (electrical system); however, the part to do the recall repair was not yet available. the dealer was contacted. the contact was concerned that the manufacturer provided limited safety risk information and that the vehicle coul…”
2026-06-15 · Fuel/Propulsion System“my 2023 mercedes-benz eqb is included in the high-voltage battery fire recall (nhtsa campaign 26v073). the recall states the battery cells may fail internally at a high state of charge, causing an internal short circuit and a potential fire whether the vehicle is parked or being driven, with no advance warning while parked. as interim safety measur…”
2026-06-04 · Engine“i am reporting a significant safety concern regarding my 2023 mercedes-benz eqb. while my specific vin has not been included in the current high-voltage battery fire risk recall (nhtsa campaign 26v073000), my vehicle is a 2023 model that shares the identical high-voltage battery architecture, manufacturing window, and platform design as the approxi…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.