Most common 2021 Mercedes-Benz AMG CLA45 problems
Share of the 1 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
Mercedes-Benz AMG CLA45 complaints by model year
Best AMG CLA45 years: 2017, 2019, 2020. Compare all years →
2021 Mercedes-Benz AMG CLA45 recalls (5)
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.
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.
Back over prevention › Display function
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2018-2021 CLA-Class, GLE/GLS-Class, A-Class, C-Class, E-Class, E-Class Coupe/Convertible, GLA/GLB-Class, GLC-Class, and CLS-Class vehicles. Please refer to MBUSA's recall report for specific vehicle model details.
Remedy: Dealers will update the rearview camera software, free of charge. Owner notification letters were mailed July 15, 2022. Owners may contact MBUSA customer service at 1-800-367-6372.
Electrical system › Software
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2019-2021 CLA-Class, GLE/GLS-Class, A-Class, E-Class, E-Class Coupe and Convertible, GLA/GLB-Class, GLC-Class, CLS-Class, and AMG GT-Class 4-door Coupe vehicles. Please refer to MBUSA's recall report for specific vehicle model details.
Remedy: The multimedia system software will be updated by a dealer, or through an over-the-air (OTA) update, free of charge. Owner notification letters were mailed beginning June 28, 2021.
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.
2021 Mercedes-Benz AMG CLA45 engines & fuel economy
| Engine | Transmission | Drive | MPG city / hwy / combined |
|---|---|---|---|
| 2.0L 4-cyl turbo | 8-speed dual-clutch | 4WD | 20 / 29 / 23 |
EPA ratings. Class: Compact car.
Frequently asked questions
Is the 2021 Mercedes-Benz AMG CLA45 a good car?
Based on 1 owner complaint filed with NHTSA, the 2021 AMG CLA45 rates few complaints: about as many complaints as a typical year of the AMG CLA45 at the same age. Complaint counts don't account for sales volume or individual maintenance, so have any used car inspected before buying.
How many recalls does the 2021 Mercedes-Benz AMG CLA45 have?
There are 5 recalls for the 2021 Mercedes-Benz AMG CLA45, the most recent from July 24, 2026 (lock). Recall repairs are free at any authorized dealer — check whether yours has been done with the VIN recall check.
What are the best and worst years of the Mercedes-Benz AMG CLA45?
The best years by complaints, compared at the same age, are 2017, 2019 and 2020. See the full Mercedes-Benz AMG CLA45 years comparison.
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.