Complaints by model year
| Year | Complaints | vs. typical* | Recalls | Top problem | Verdict |
|---|---|---|---|---|---|
| 2020 | 1 | typical | 2 | Electrical | Few |
| 2019 | 1 | — | 2 | Engine | Few |
| 2017 | 4 | — | 2 | Equipment | Few |
* Complaints compared with the median SLC300 year at the same age, so new and old years are judged fairly. How this works.
Most common Mercedes-Benz SLC300 problems
Latest Mercedes-Benz SLC300 recalls
Communication › Auto crash notification
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2017-2022 CLA-Class, GLA-Class, GLE-Class, GLS-Class, SLC-Class, A-Class, AMG GT-Class, C-Class, E-Class, S-Class, SL-Class, GLC-Class, CLS-Class, GLB-Class, and G-Class vehicles. Please refer to MBUSA's recall report for specific vehicle model details.
Remedy: The communication module software will be updated through an Over-the-Air (OTA) update or by a dealer, free of charge. Owner notification letters were mailed July 8, 2022.
Communication › Auto crash notification
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2016 - 2021 CLA-Class, GLA-Class, GLE-Class, GLS-Class, SLC-Class, A-Class, GT-Class, C-Class, E-Class, S-Class, CLS-Class, SL-Class, B-Class, GLB-Class, GLC-Class, and G-Class vehicles. Please refer to the Part 573 report for specific vehicle model details.
Remedy: MBUSA will notify owners, and the communication module software will be updated by a dealer, or through an over-the-air (OTA) update, free of charge. The recall began March 12, 2021.
Electronic stability control (ESC)
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2015 SLK 250, 2016 SLK 350, 2016-2017 SLC 300, and 2017 SLC 43 AMG vehicles. In these vehicles, the electronic stability control (ESC) system software may incorrectly keep the brakes slightly applied.
Remedy: MBUSA will notify owners, and dealers will update the software for the ESC system, free of charge. The recall began June 9, 2017. Owners may contact MBUSA customer service at 1-800-367-6372.
Frequently asked questions
What years of the Mercedes-Benz SLC300 should you avoid?
None of the Mercedes-Benz SLC300 years has an unusually high number of complaints compared with the others at the same age.
What are the most common Mercedes-Benz SLC300 problems?
Across all years, owners report the most problems with the electrical system (2), engine & cooling (2) and equipment & accessories (1). Electrical complaints peak in the 2017 model year.
How many recalls has the Mercedes-Benz SLC300 had?
3 recalls across 2017–2020. The model year with the most is 2017. See all Mercedes-Benz SLC300 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.