Most common 2018 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 →
2018 Mercedes-Benz AMG recalls (5)
Power train › Driveline › Driveshaft
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2016-2018 AMG GT vehicles. The bonding between the carbon-fiber driveshaft and the flange may be insufficient, which could result in driveshaft separation.
Remedy: Dealers will inspect and replace the carbon-fiber driveshaft, as necessary, free of charge. Owner letters were mailed October 15, 2021. Owners may contact MBUSA customer service at 1-800-367-6372.
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.
Air bags › Air bag/restraint control module
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2018 Mercedes-Benz AMG GT Cabrio and AMG GT-C Cabrio vehicles. Due to a software incompatibility, in the event of a low speed crash, both stages of the frontal air bags may deploy instead of only the first-stage deploying as intended.
Remedy: MBUSA will notify owners, and dealers will update the air bag control unit software, free of charge. The recall began November 2, 2018. Owners may contact MBUSA customer service at 1-800-367-6372.
Air bags › Frontal › Driver side › Inflator module
Mercedes-Benz USA LLC (MBUSA) is recalling certain 2018 AMG GT, AMG GT C, GLC43 AMG 4Matic, GLC300, GLC300 4Matic and GLC350e 4Matic vehicles. The housing for the driver side air bag inflator may have been made with defective steel.
Remedy: MBUSA will notify owners, and dealers will replace the front driver air bag module, free of charge. The recall is expected to begin May 29, 2018. Owners may contact MBUSA customer service at 1-800-367-6372.
Seat belts
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain model year 2018 Mercedes-Benz AMG GT, AMG GT R, AMG GT C and AMG GT S vehicles. The seat belts may bind within the guidance loops possibly causing slack in the seat belts.
Remedy: MBUSA will notify owners, and dealers will reconfigure the seat belt guides, free of charge. The recall began March 30, 2018. Owners may contact MBUSA customer service at 1-877-496-3691.
NHTSA defect investigations
Federal safety investigators have looked into a possible defect involving the 2018 Mercedes-Benz AMG:
Desiccated Air Bag Inflator Rupture
From 2000 through 2017, Takata produced millions of air bag inflators using two types of phase-stabilized ammonium nitrate ("PSAN") propellant -- propellant 2004 and propellant 2004L. After prolonged exposure to high temperature cycles and humidity, inflators using propellant 2004 can degrade, causing the propellant to burn too quickly when ignited.
2018 Mercedes-Benz AMG engines & fuel economy
| Engine | Transmission | Drive | MPG city / hwy / combined |
|---|---|---|---|
| 2.0L 4-cyl turbo | 7-speed dual-clutch | 4WD | 23 / 30 / 26 |
| 3.0L 6-cyl turbo | 9-speed automatic | 4WD | 20 / 27 / 23 |
| 3.0L 6-cyl turbo | 9-speed automatic | RWD | 20 / 29 / 23 |
| 4.0L 8-cyl turbo | 9-speed automatic | 4WD | 17 / 26 / 20 |
| 4.0L 8-cyl turbo | 7-speed automatic | RWD | 18 / 24 / 20 |
| 5.5L 8-cyl turbo | 7-speed automatic | RWD | 16 / 25 / 19 |
| 4.0L 8-cyl turbo | 7-speed dual-clutch | RWD | 16 / 22 / 18 |
| 5.5L 8-cyl turbo | 7-speed automatic | 4WD | 16 / 22 / 18 |
| 6.0L 12-cyl turbo | 7-speed automatic | RWD | 13 / 22 / 16 |
| 6.0L 12-cyl turbo | 7-speed automatic | 4WD | 11 / 13 / 12 |
EPA ratings. Class: Compact car.
Frequently asked questions
Is the 2018 Mercedes-Benz AMG a good car?
Based on 2 owner complaints filed with NHTSA, the 2018 AMG rates few complaints: 27% fewer complaints than a typical year of the AMG at the same age. It is one of the best AMG years by this measure. 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 2018 Mercedes-Benz AMG?
The brakes — 1 complaint, 50% of all complaints for this model year. Next are the stability & traction control (1) and electrical system (1).
How many recalls does the 2018 Mercedes-Benz AMG have?
There are 5 recalls for the 2018 Mercedes-Benz AMG, the most recent from June 25, 2021 (driveshaft). 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.
At what mileage do 2018 Mercedes-Benz AMG problems happen?
The median mileage reported in complaints is about 11,000 miles; 100% of problems with a recorded mileage started before 50,000 miles.
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.