Most common 2021 Mercedes-Benz AMG problems
Share of the 2 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
Mercedes-Benz AMG complaints by model year
Best AMG years: 2018. Compare all years →
2021 Mercedes-Benz AMG recalls (2)
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.
Service brakes, hydraulic › Antilock/traction control/electronic limited slip › Wheel speed sensor/tone ring
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2021 AMG GT Black Series vehicles. The wiring harness for the front wheel speed sensor may be the incorrect length, which could result in damage to the harness during certain driving conditions.
Remedy: Dealers will replace the wiring harness, free of charge. Owner notification letters were mailed March 18, 2022. Owners may contact MBUSA customer service at 1-800-367-6372.
2021 Mercedes-Benz AMG engines & fuel economy
| Engine | Transmission | Drive | MPG city / hwy / combined |
|---|---|---|---|
| 3.0L 6-cyl hybrid | 9-speed automatic | 4WD | 22 / 29 / 25 |
| 2.0L 4-cyl turbo | 7-speed dual-clutch | 4WD | 22 / 29 / 25 |
| 2.0L 4-cyl turbo | 8-speed dual-clutch | 4WD | 23 / 29 / 25 |
| 3.0L 6-cyl turbo | 9-speed automatic | 4WD | 19 / 27 / 22 |
| 4.0L 8-cyl turbo | 9-speed automatic | RWD | 17 / 26 / 21 |
| 4.0L 8-cyl turbo | 9-speed automatic | 4WD | 16 / 26 / 19 |
| 4.0L 8-cyl turbo hybrid | 9-speed automatic | 4WD | 15 / 19 / 17 |
| 4.0L 8-cyl turbo | 7-speed dual-clutch | RWD | 15 / 20 / 17 |
EPA ratings. Class: Midsize car.
Frequently asked questions
Is the 2021 Mercedes-Benz AMG a good car?
Based on 2 owner complaints filed with NHTSA, the 2021 AMG rates few complaints: about as many complaints as a typical year of the AMG at the same age. Complaint counts don't account for sales volume or individual maintenance, so have any used car inspected before buying.
What is the most common problem with the 2021 Mercedes-Benz AMG?
The electrical system — 1 complaint, 50% of all complaints for this model year. Next is the transmission & drivetrain (1).
How many recalls does the 2021 Mercedes-Benz AMG have?
There are 2 recalls for the 2021 Mercedes-Benz AMG, the most recent from May 20, 2022 (auto crash notification). 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?
The best years by complaints, compared at the same age, are 2018. See the full Mercedes-Benz AMG 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.