2021 Mercedes-Benz AMG GT 63

The 2021 Mercedes-Benz AMG GT 63 is a high-performance luxury sedan known for its stunning design and impressive power. It was offered with a few different engine options, including a 3.0L inline-6 turbo with EQ Boost (429 hp, 384 lb-ft of torque), and the hand-built 4.0L V8 biturbo available in various outputs. The AMG GT 63 boasts a 4.0L V8 biturbo engine that produces 575 hp and 590 lb-ft of torque. Many owners praise the car’s exhilarating performance, luxurious interior, and striking exterior design. Conversely, some have cited the high price point, firm ride (especially with larger wheels), and complex infotainment system as potential drawbacks.

Engine

4.0L V8 Biturbo

• Turbocharger Failure
  • Description/Symptoms: Whining noise from the engine, loss of power, check engine light.
  • Solution: Replacement of the faulty turbocharger.
  • Estimated Cost to Fix: $5,000 - $8,000+
  • Recalls: None Found
• Oil Leaks
  • Description/Symptoms: Oil drips under the car, burning oil smell, low oil level.
  • Solution: Replacement of leaking gaskets or seals (e.g., valve cover gaskets, oil pan gasket).
  • Estimated Cost to Fix: $500 - $2,000+
  • Recalls: None Found

Transmission

AMG SPEEDSHIFT MCT 9-Speed Transmission

• Rough Shifting/Hesitation
  • Description/Symptoms: Harsh or delayed shifts, particularly between certain gears, hesitation during acceleration.
  • Solution: Software update/reprogramming of the transmission control module (TCM). In some cases, valve body replacement might be necessary.
  • Estimated Cost to Fix: $200 - $500 (software); $2,000 - $4,000+ (valve body)
  • Recalls: None Found
• Transmission Slipping
  • Description/Symptoms: Engine revving without corresponding acceleration, feeling of the transmission “slipping” out of gear.
  • Solution: This could indicate significant internal damage requiring a transmission rebuild or replacement.
  • Estimated Cost to Fix: $6,000 - $10,000+
  • Recalls: None Found

Suspension

• Air Suspension Malfunction
  • Description/Symptoms: The vehicle sits unevenly, suspension warning light, inability to adjust ride height.
  • Solution: Diagnosis of the air suspension system (air struts, compressor, control module) and replacement of faulty components.
  • Estimated Cost to Fix: $1,000 - $4,000+ (depending on the failed component)
  • Recalls: None Found

Electrical

• Infotainment System Issues
  • Description/Symptoms: System freezes, screen goes black, unresponsive touch screen, Bluetooth connectivity problems.
  • Solution: Software update. If the update fails to resolve the issue, replacement of the infotainment unit might be necessary.
  • Estimated Cost to Fix: $0 (software update, if available); $1,500 - $3,000+ (unit replacement)
  • Recalls: None Found
• Sensor Malfunctions (Parking Sensors, Blind Spot Monitoring)
  • Description/Symptoms: False alarms, system not functioning correctly, warning lights.
  • Solution: Diagnosis and replacement of faulty sensor(s).
  • Estimated Cost to Fix: $200 - $800+ per sensor (depending on the sensor and location)
  • Recalls: None Found

Exterior

• Panoramic Sunroof Issues
  • Description/Symptoms: Creaking noises, difficulty opening or closing, water leaks.
  • Solution: Lubrication, adjustment, or replacement of the sunroof mechanism/seals.
  • Estimated Cost to Fix: $200 - $1,500+
  • Recalls: None Found

Interior

• Seat Motor Failure
  • Description/Symptoms: Seat will not move in one or more directions, grinding noises from the seat mechanism.
  • Solution: Replacement of the faulty seat motor or entire seat mechanism.
  • Estimated Cost to Fix: $500 - $2,000+ (depending on the extent of the repair)
  • Recalls: None Found

Summary

The 2021 Mercedes-Benz AMG GT 63, while an impressive performance machine, can experience a range of issues. The most severe and costly problems tend to be related to the engine (turbocharger failure, oil leaks), transmission (slipping, rough shifting) and suspension (air suspension malfunctions). Electrical gremlins in the infotainment system and issues with exterior features like the panoramic sunroof also surface. While some fixes are relatively inexpensive (software updates), major repairs can run into the thousands of dollars. Due to the complexity and high cost of parts, owners should be diligent with maintenance and address any issues promptly to avoid further damage.