2022 Mercedes-Benz Glc 300 problems, complaints & recalls
Most-reported problem areas: Steering (11) · Fuel/Propulsion System (11) · Fuel System, Gasoline (8)
🧭 Reliability snapshot
Compared against other Mercedes-Benz Glc 300 model years — complaint volume vs the model's median year, recalls and severity. How we score →
Safety recalls (2)
Exterior Lighting:headlights 2024-02-02 · campaign 24V070000 · 15,502 vehicles
Defect: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2019-2022 GLC 300, 2020 GLC 350e, and 2020-2022 AMG GLC 43 vehicles. The headlights may be incorrectly adjusted too high and create a glare for oncoming traffic. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 108, "Lamps, Reflective Devices, and Associated Equipment."
Risk: Incorrectly aimed headlights can reduce the visibility of oncoming traffic, increasing the risk of a crash.
Fix: Dealers will inspect the headlight adjustment and correct it if necessary, free of charge. Owner notification letters were mailed February 23, 2024. Owners may contact MBUSA customer service at 1-800-367-6372.
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.
Service bulletins (202)
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.
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
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
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,
Power Train 2026-09-14 · LI27.10-P-075869 · Service Bulletin/Repair Instructions
complaint only vehicles with a variable transfer case are affected. this can be identified through control unit n45 or n15/7 in the quick test. when accelerating with light load, vibrations or jolting sensation may come from the drivetrain. it may be mistaken for a harsh shift. cause modified oil qu
Power Train 2026-09-04 · 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
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
Showing the 6 most recent of 202 bulletins. Search all of them free at nhtsa.gov.
What owners report
2026-10-12 · Air Bags · 💥 crash“i am reporting a potentially serious vehicle safety issue involving a 2022 mercedes-benz glc after a fatal crash. i was seated in the left rear seat. one occupant died and multiple people were injured. according to the florida highway patrol crash report, the left curtain air bag was listed as “equipped; not deployed,” while the right curtain air b…”
2026-10-01 · Fuel/Propulsion System“the vehicle has experienced two separate incidents of significant loss of power/acceleration. first incident – january 2024, clarksville, tn: while driving downtown, the vehicle suddenly lost significant power and could not provide normal acceleration. the estimated remaining range was approximately 50 miles. the vehicle was subsequently inspected…”
2026-08-27 · Fuel/Propulsion System“after recalls performed trouble code p2402 evap leak still is present and check engine light is on…”
2026-08-25 · Unknown Or Other“rear hatchback for 2026 mercedes glc sensors…”
2026-08-23 · Service Brakes“vehicle: 2022 mercedes-benz glc 300 4matic component: electronic parking brake (epb) / service brakes summary of complaint: this vehicle has an ongoing, unresolved electronic parking brake (epb) defect. the amber epb warning light has recurred multiple times, including most recently after a $3,000 dealership repair intended to correct this exact…”
2026-08-08 · Fuel/Propulsion System“my 2022 mercedes-benz glc 300 (17,700 total miles) suffered a catastrophic structural engine block failure and an explosive loss of propulsion while driving at highway speeds. this occurred exactly 6 days and 183 miles after a franchised mercedes-benz dealership performed the official fuel pump impeller safety recall (nhtsa campaign 23v-445).the de…”
2026-08-05 · Vehicle Speed Control“i have experienced 4 incidents of the car accelerating on its own. i have taken it to the dealership twice and they are unable to reproduce the problem. problems began occurring in 2025 and occurred again this past week (august 20246). in the most recent incident i was accelerating on an "on ramp". the car suddenly took hold and continued to speed …”
2026-07-03 · Service Brakes“while driving down a busy neighborhood street 2 lanes with cars on both sides making it a 1 lane road pulled over to the side a little to let cars pass. all of a sudden all electrical and engine stopped and turned off. only thing that was powered was instrument cluster with multiple warnings like srs malfunction, steering malfunction, sos inoperat…”
2026-06-04 · Service Brakes“my vehicle got stuck on a epb(electronic parking brake) and i was unable to disengage it. i tried a few things and none worked. i contacted mercedes to tow it to the dealer and the tow truck came and driver had to “drag” my vehicle on to the flatbed. my car has been at mercedes for 5 days now and they gave me a response saying that they are having …”
2026-05-08 · Fuel/Propulsion System“low coolant warning came on. battery car didn’t start , had it jump. low coolant warning came on again. passenger seat belt warning is on. …”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.