2021 Mercedes-Benz AMG GT 53

The 2021 Mercedes-Benz AMG GT 53 is a performance-oriented four-door coupe that blends sporty driving dynamics with luxurious comfort. The standard engine for the AMG GT 53 is a 3.0-liter inline-6 turbocharged engine with EQ Boost (mild hybrid system), producing 429 horsepower and 384 lb-ft of torque. Some owners praise its sleek design, powerful engine, and comfortable interior. Common complaints include the complex infotainment system, occasional electrical glitches, and high maintenance costs. Other engine options for the AMG GT 4-Door Coupe include the AMG GT 43 and the AMG GT 63/63S, with the latter being a 4.0L V8 engine. All engine options utilize the AMG SPEEDSHIFT TCT 9-speed automatic transmission.

Engine

3.0L Inline-6 Turbocharged with EQ Boost

• Rough Idle/Misfires
  • Description/Symptoms: Some owners report experiencing a rough idle, particularly when the engine is cold. This can sometimes be accompanied by misfires and a noticeable decrease in power.
  • Solution: The issue could stem from faulty spark plugs, coil packs, or fuel injectors. A diagnostic scan can pinpoint the problematic component. Replacing the faulty part or parts is the typical solution.
  • Estimated Cost to Fix: $200 - $800+, depending on the specific parts needing replacement and labor costs.
  • Recalls: None Found
• Oil Leaks
  • Description/Symptoms: Oil leaks have been reported, often originating from the valve cover gasket or the oil filter housing. Symptoms include visible oil drips under the car and a burning oil smell.
  • Solution: Replacing the leaking gasket or component is required.
  • Estimated Cost to Fix: $300 - $1000+, depending on the source of the leak and associated labor.
  • Recalls: None Found

Transmission

AMG SPEEDSHIFT TCT 9-Speed Automatic

• Harsh Shifting
  • Description/Symptoms: Some owners have reported harsh or jerky shifting, especially during low-speed acceleration or deceleration. This can be more pronounced in certain driving modes.
  • Solution: In some cases, a transmission control module (TCM) software update can resolve the issue. In more severe cases, valve body issues or other internal component failures may require transmission repair or replacement.
  • Estimated Cost to Fix: $150 (software update) - $5,000+ (transmission repair or replacement).
  • Recalls: None Found
• Hesitation/Delay in Gear Engagement
  • Description/Symptoms: Experiencing a noticeable delay or hesitation when shifting gears, particularly when accelerating from a standstill or during quick maneuvers.
  • Solution: This could be related to the valve body within the transmission or potentially low transmission fluid. A proper diagnosis is required to determine the root cause.
  • Estimated Cost to Fix: $200 - $300 for fluid replacement, $1,000+ for valve body repair.
  • Recalls: None Found

Suspension

• Air Suspension Malfunctions
  • Description/Symptoms: The AMG GT 53 often comes equipped with air suspension. Some owners have encountered issues such as the car not maintaining the correct ride height, sagging on one side, or error messages related to the air suspension system.
  • Solution: Diagnosing the leak is necessary, as well as the air strut or air compressor.
  • Estimated Cost to Fix: $1,000 - $3,000+ per strut, depending on the part and labor costs.
  • Recalls: None Found

Electrical

• Infotainment System Glitches
  • Description/Symptoms: The MBUX infotainment system can experience glitches, freezing, or slow response times. Connectivity issues with Bluetooth and wireless Apple CarPlay/Android Auto have also been reported.
  • Solution: Software updates are often released to address these issues. In some cases, a system reset or component replacement may be necessary.
  • Estimated Cost to Fix: $0 (software update) - $1,000+ (component replacement).
  • Recalls: None Found
• Sensor Malfunctions
  • Description/Symptoms: Issues with various sensors, such as parking sensors, blind-spot monitoring sensors, and lane-keeping assist sensors, have been reported. These malfunctions can result in warning lights or disabled features.
  • Solution: Replacing the faulty sensor.
  • Estimated Cost to Fix: $200 - $800+, depending on the sensor and labor costs.
  • Recalls: None Found

Exterior

• Sunroof Issues
  • Description/Symptoms: Some owners have experienced issues with the panoramic sunroof, including difficulty opening or closing, unusual noises, or water leaks.
  • Solution: Repair or replacement of the sunroof mechanism or seals.
  • Estimated Cost to Fix: $500 - $2,000+, depending on the complexity of the repair.
  • Recalls: None Found

Interior

• Seat Motor Failure
  • Description/Symptoms: Malfunctions with the electric seat adjustment motors, preventing the seat from moving in certain directions.
  • Solution: Replacing the faulty motor or seat assembly.
  • Estimated Cost to Fix: $300 - $1,500+, depending on the extent of the repair.
  • Recalls: None Found

Summary

The 2021 Mercedes-Benz AMG GT 53, while offering a blend of performance and luxury, exhibits several common issues. Engine and transmission problems, while not widespread, can be costly to repair. Electrical glitches with the infotainment system and sensor malfunctions can be frustrating. Suspension and interior component failures can also lead to unexpected expenses. The severity of these issues varies, but potential buyers should be aware of these potential problems and consider a pre-purchase inspection to assess the vehicle’s condition. Overall, the cost to fix these issues can range from a few hundred dollars for minor repairs to several thousand dollars for more significant component replacements.