2022 Mercedes-Benz C 300 problems, complaints & recalls
Most-reported problem areas: Fuel System, Gasoline (3) · Electrical System (3) · Service Brakes (2)
🧭 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 (9)
Latches/Locks/Linkages:doors:lock 2026-07-24 · campaign 26V481000 · 310,667 vehicles
Defect: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2020-2021 CLA, 2019-2022 A-Class, 2022-2023 C-Class, 2024 CLE, 2020-2026 GLA/GLB, and 2023-2024 GLC vehicles. Please refer to MBUSA's recall report for specific model information. The micro-switch in the driver's door lock may corrode and fail to detect an open door, preventing the electronic parking brake or "Auto-Park" feature from engaging automatically. This may result in a vehicle rollaway.
Risk: A vehicle rollaway increases the risk of a crash or injury.
Fix: Dealers will replace the driver's door lock, free of charge. Owner notification letters are expected to be mailed September 18, 2026. This will be a phased campaign, with the remedy becoming available in different phases based on model and model years. 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 July 31, 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.
Electrical System:wiring:fuses And Circuit Breakers 2024-06-14 · campaign 24V446000 · 1,058 vehicles
Defect: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2022-2023 C 300 vehicles. The bolt securing the electrical wire to the pre-fuse box could be improperly tightened, causing the wire to overheat. MBUSA's number for this recall is 2024070005.
Risk: An overheated wire can cause a fire and a sudden loss of drive power, increasing the risk of a crash.
Fix: Dealers will inspect and rework the wiring harness, as necessary free of charge. Owner notification letters were mailed August 2, 2024. Owner may contact MBUSA customer service at 1-877-496-3691.
Fuel System, Gasoline:delivery:fuel Pump 2023-12-21 · campaign 23V880000 · 79,676 vehicles
Defect: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2021-2024 GLE, GLS, C-Class, E-Class, S-Class, SL, GLC, CLS, AMG GT, and G-Class vehicles. Please refer to MBUSA's recall report for specific vehicle details. The fuel pump may shutdown, causing a loss of drive power.
Risk: A loss of drive power can increase the risk of a crash.
Fix: Dealers will replace the fuel pump, free of charge. Owner notification letters were mailed on June 28, 2024. Owner notification letters will be mailed in phases, on February 23, 2024, April 19, 2024, June 28, 2024, August 9, 2024, October 1, 2024, and December 2, 2024. Owners may contact MBUSA customer service at 1-800-367-6372. This recall is an expansion of NHTSA recall number 23V-445.
Electrical System:wiring 2023-06-30 · campaign 23V462000 · 8,178 vehicles
Defect: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2022-2023 C300 and 2023 AMG C43 vehicles. The transmission wiring harness may be the incorrect length, which can result in harness damage and a loss of drive power.
Risk: A loss of drive power can increase the risk of a crash.
Fix: Dealers will inspect and repair the transmission wiring harness routing, as necessary, free of charge. Owner notification letters were mailed August 18, 2023. Owners may contact MBUSA customer service at 1-800-367-6373. MBUSA's number for this recall is 2023070015.
Electrical System:wiring 2023-06-30 · campaign 23V463000 · 1,558 vehicles
Defect: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2022-2023 C300 and 2023 AMG C43 vehicles. The ground connections for the electrical wiring harness may not be secured properly, which can result in the electrical wiring harness overheating.
Risk: An overheated wiring harness can increase the risk of a fire.
Fix: Dealers will inspect and repair the ground connections for the electrical wiring harness, as necessary, free of charge. Owner notification letters were mailed August 11, 2023. Owners may contact MBUSA customer service at 1-800-367-6373. MBUSA's numbers for this recall are 2023070016, 2023070017, 2023070018, and 2024070016.
Fuel System, Gasoline:delivery:fuel Pump 2023-06-26 · campaign 23V445000 · 143,551 vehicles
Defect: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2021-2023 C-Class, E-Class, S-Class, CLS, SL, GT, GLC, GLE, GLS, and G-Class vehicles. Please refer to MBUSA's recall report for specific vehicle details. The fuel pump may shutdown, which can result in a loss of drive power.
Risk: A loss of drive power can increase the risk of a crash.
Fix: Dealers will replace the fuel pump, free of charge. Owner notification letters were mailed on June 14, 2024. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2023070012.
Electrical System:wiring: Rear Compartment/Trunk 2022-09-12 · campaign 22V678000 · 6,752 vehicles
Defect: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2022 C300 vehicles. Moisture accumulation in the trunk may leak into the signal acquisition module (SAM), causing an electrical short circuit.
Risk: An electrical short circuit in the SAM could lead to various malfunctions, such as rear exterior lighting failure, unintentional rear seat folding, and rearview camera failure, increasing the risk of a crash or injury. In addition, an electrical short circuit might increase the risk of a fire.
Fix: Dealers will install a cover for the SAM, free of charge. Owner notification letters were mailed December 2, 2022. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2022090011.
Steering: Steering Wheel/Handle Bar 2022-03-25 · campaign 22V189000 · 8,396 vehicles
Defect: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2021-2022 C-Class, E-Class, S-Class, SL, EClass Coupe/Convertible, CLS, AMG GT 4-doors Coupe, and EQS vehicles with a heated leather steering wheel. Due to a software error in the hand detection control unit, the hands-off detection might not detect when the driver's hands are away from the steering wheel when using the Active Distance Assist DISTRONIC system.
Risk: Deactivated hands-off detection will prevent DISTRONIC system features from functioning, including warnings to grab the steering wheel and calling first responders as part of the Active Emergency Stop Assist, which can increase the risk of a crash or injury.
Fix: Dealers will update the hand detection control unit software for the DISTRONIC system, free of charge. Owner notification letters were mailed May 6, 2022. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2022040010.
Service bulletins (392)
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 392 bulletins. Search all of them free at nhtsa.gov.
What owners report
2026-06-18 · Engine“car fails to accelerate past 25 mph when entering roadway. roadway area is 45mph and vehicle would not accelerate to reach safe levels. this out myself and occupants of my vehicle in danger as traffic is already at the 45+ mph limit. vehicle has 30,000 miles. engine light came on after incident. …”
2026-01-12 · Forward Collision Avoidance: Warnings · 💥 crash“refer to mercedes complaint letter dated august 21, 2025. refer to edr report of the crash mercedes benz is claiming no responsibility for the failure of active brake assist (aba) during a frontal impact collision that resulted in the car total loss. the sensors also didn't work resulting in no alert to the driver and nothing recorded on the car ca…”
2025-11-19 · Vehicle Speed Control“1. the vehicle experienced a fuel injector failure, which is part of the engine fuel delivery system. this failure appears connected to an open fuel system control unit software update recall (campaign 2024080006) that has been open since may 2024 but was not performed on my vehicle, despite the vehicle being serviced at the dealership in january 2…”
2025-03-31 · Seat Belts“passenger seat belt doesn’t lock properly sometimes comes out and is very hard to put in on entry of vehicle …”
2025-03-11 · Back Over Prevention: Sensing System: Camera“all on a sudden the entire screen goes blank. it has happened at least 4 times and each time the service center does some patching and it works for a few month. when it happens, all the safety features are off including reverse camera. also, no way to set the temperature or turn of the ac. in both cases, it can lead to significant damage. the recen…”
2024-12-02 · Lane Departure: Blind Spot Detection“when starting vehicle, center screen of vehicle was completely off and dark. moreover, with this screen being off, you are not able to control any of the vehicle functions such as ac, maps, radio, rear camera, etc. on the other hand, on the digital speedometer screen, a warning message states "blind spot assist inoperative" and when putting the veh…”
2024-06-03 · Electrical System“the electronic system, specifically the battery, failed and it is available for inspection upon request. the persistent battery drain caused the vehicle to become inoperable multiple times, including an incident where i was stranded 200 miles from home with my wife and dog, posing significant safety risks. yes, the defect has been confirmed by the …”
2024-04-29 · Structure:body:door · 6,000 mi“the contact owns a 2022 mercedes-benz c300. the contact stated that while the vehicle was parked, the contact became aware that the seal had detached from the driver’s side front door. the contact stated that due to the failure, water entered the driver’s seat causing a short circuit in the electrical system. the vehicle was taken to a dealer and w…”
2024-04-26 · Unknown Or Other“i am attempting to submit a complaint against the mercedes-benz product and other auto manufacturers that follow this process. mercedes provides no spare tire so this has been replaced by a "fix a flat" system that you can presumably use stop a tire air leak and then drive to a shop for repair. the fix a flat does not work when the tire is blown …”
2023-11-09 · Service Brakes · 20,000 mi“the contact owns a 2022 mercedes-benz c300. the contact stated while driving at unknown speeds, the active brake assist was not functioning properly. the brakes were applied without an object around the vehicle. there were no warning lights illuminated. the local dealer was contacted and scheduled an appointment. the vehicle was not diagnosed or re…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.