2025 Mercedes-Benz C 300 problems, complaints & recalls
Most-reported problem areas: Vehicle Speed Control (1) · Service Brakes (1) · Back Over Prevention: Sensing System: Camera (1)
🧭 Reliability snapshot
Compared against other Mercedes-Benz C 300 model years — complaint volume vs the model's median year, recalls and severity. How we score →
Safety recalls (2)
Electrical System: Instrument Cluster/Panel 2026-05-01 · campaign 26V281000 · 144,049 vehicles
Defect: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2024-2026 AMG GT, C-Class, E-Class, SL, CLE, and GLC vehicles. The infotainment control unit may reset while the vehicle is in motion and cause the instrument panel display to go blank.
Risk: An instrument panel display that fails to show critical safety information, such as the speedometer and warning lights, increases the risk of a crash.
Fix: Dealers will update the infotainment control unit software, free of charge. Owner notification letters were mailed June 29, 2026. MBUSA's number for this recall is 2026050004. 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 May 8, 2026.
Seat Belts:front 2025-05-02 · campaign 25V253000 · 46 vehicles
Defect: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2022-2025 C 300, and 2023-2024 AMG C 43 vehicles. The driver-side seat belt cover may not be properly installed on the seat belt tensioner, which can cause the seat belt anchor to come loose.
Risk: A loose seat belt may not properly restrain an occupant during a crash, increasing the risk of injury.
Fix: Dealers will inspect and repair the seat belt covers, as necessary, free of charge. Owner notification letters were mailed May 16, 2025. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2025040012.
Service bulletins (167)
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.
Power Train 2026-09-26 · LI27.00-P-073124 · Service Bulletin/Repair Instructions
complaint customer complaints relating to automatic transmission 725.0 (nag3 classic /9g‑tronic automatic transmission) and 725.1 (nag3 facelift/9g‑tronic automatic transmission facelift) for faster, more effective and more targeted diagnosis, intelligent predictive repair (ipr) has been developed a
Electrical System 2026-09-25 · OTA-Comm. Mod. SW. Update · Over The Air
a software update will be performed that provides enhancements to the robustness and system stability of the communication module. the update is free of charge and runs in the background, which takes about 8 minutes to install. during this time, the vehicle can be driven without any restrictions, an
Visibility/Wiper 2026-09-25 · LI83.90-P-080935 · Service Bulletin/Repair Instructions
complaint cel illuminates and/or ac does not blow cold. cause potentially relevance to hardware and/or software remedy scenario 1: 1. if the ac does not blow cold air, replace compressor (if compressor's index and part number figure 1 match against table 1). a. if the compressor does not fall within
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
Visibility/Wiper 2026-09-18 · PSL-NCU Return Parts 9/18 · Other
dear dealer partners, the part numbers listed in the chart below should no longer be installed and any existing stock must be returned to your facing pdc. the deadline for all dealer returns is thursday, october 8th, 2026. after october 8th, we will no longer accept returns of these parts. these par
Showing the 6 most recent of 167 bulletins. Search all of them free at nhtsa.gov.
What owners report
2026-06-03 · Back Over Prevention: Sensing System: Camera“the 2025 c300 rwd sedan was parked outside for about an hour. after getting back into the car and reversing, the rear camera would not display. the camera/parking interface was activated however there was an error symbol where the camera image is displayed, with a camera crossed through. restarting the car, shifting back into drive, and stowing th…”
2026-06-02 · Unknown Or Other“the panoramic sunroof unexpectedly shattered while the vehicle was parked in my driveway overnight. there was no collision, impact, weather event, vandalism, or any other external cause that could explain the failure. the damaged sunroof remains available for inspection upon request, and security camera footage from my property shows no outside inf…”
2026-03-18 · Vehicle Speed Control“after driving the 2025 c300 sedan and leaving it parked for an hour or two, i come back to the car and turn it on. neither the central screen or drivers screen were operable. the engine, interior lighting, sounds, and other systems were working however all the screens were completely dead. the car had no speedometer, gear selection, park brake, a/c…”
2026-03-02 · Service Brakes“vehicle is new to me as of jan 6, 2026. the brakes are spongy, but when the car shifts from d3 to d2, it releases and unless i press the brake again it would glide into an intersection or into the vehicle in front of me. this has been looked at by my selling dealer three times and another dealer one more time. brakes have been flushed, electroni…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.