Complaints by model year
| Year | Complaints | vs. typical* | Recalls | Top problem | Verdict |
|---|---|---|---|---|---|
| 2026 | 7 | 1.3× | 3 | Electrical | Average |
| 2025 | 26 | 1.2× | 3 | Electrical | Average |
| 2024 | 29 | 1.2× | 8 | Engine | Average |
| 2023 | 64 | 2.5× | 12 | Electrical | Avoid |
| 2022 | 61 | 1.6× | 2 | Fuel System | Caution |
| 2021 | 67 | 1.4× | 9 | Engine | Average |
| 2020 | 69 | typical | 16 | Engine | Average |
| 2019 | 47 | −40% | 12 | Electrical | Good |
| 2018 | 87 | −19% | 12 | Engine | Average |
| 2017 | 99 | — | 12 | Engine | Limited data |
| 2016 | 133 | — | 12 | Engine | Limited data |
* Complaints compared with the median GLC300 year at the same age, so new and old years are judged fairly. How this works.
Most common Mercedes-Benz GLC300 problems
Latest Mercedes-Benz GLC300 recalls
Latches/locks/linkages › Doors › Lock
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.
Remedy: Dealers will replace the driver's door lock, free of charge. Owner notification letters are expected to be mailed September 18, 2026.
Electrical system › Instrument cluster/panel
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.
Remedy: 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.
Seat belts › Rear/other
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2026 AMG GLC43 4MATIC, GLC 300 4MATIC, GLC 300, and GLC 300 4MATIC Coupe vehicles. The center rear seat belts may have been installed without the child seat protection function and fail to lock a child restraint properly.
Remedy: Dealers will inspect and replace the center rear seat belt assembly as necessary, free of charge. Owner notification letters were mailed May 15, 2026. Owners may contact MBUSA customer service at 1-800-367-6372.
Steering › Critical fasteners
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2023-2026 EQE and GLC vehicles. Please see the recall report for a complete list of models. The steering coupling bolt may have been improperly tightened, allowing the steering coupling to loosen from the steering rack.
Remedy: Dealers will tighten the steering coupling bolts as necessary, free of charge. Owner notification letters were mailed October 6, 2025. Owners may contact MBUSA customer service at 1-800-367-6372.
Exterior lighting › Headlights
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2023 GLC 300 and GLC 300 4MATIC vehicles. The headlights are missing adjustment prevention caps, which can allow the headlights to be improperly adjusted.
Remedy: Dealers will inspect the headlights for sealing caps and install caps as necessary, free of charge. Owner notification letters were mailed July 18, 2025. Owners may contact MBUSA customer service at 1-800-367-6372.
Frequently asked questions
What years of the Mercedes-Benz GLC300 should you avoid?
2023 and 2022 — these years have the most complaints relative to other GLC300 years at the same age, led by electrical system problems in the 2023.
What is the best year for the Mercedes-Benz GLC300?
2019 has the fewest complaints compared with other GLC300 years at the same age, followed by 2018. Newer years can look better simply because fewer complaints have come in yet, so we compare like with like.
What are the most common Mercedes-Benz GLC300 problems?
Across all years, owners report the most problems with the engine & cooling (207), electrical system (138) and fuel & propulsion system (89). Engine complaints peak in the 2016 model year.
How many recalls has the Mercedes-Benz GLC300 had?
54 recalls across 2016–2026. The model year with the most is 2020. See all Mercedes-Benz GLC300 recalls by year.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.