2019 Mercedes-Benz AMG GT 63 S

The 2019 Mercedes-Benz AMG GT 63 S is a high-performance luxury sedan that blends coupe-like styling with four-door practicality. The AMG GT 63 S is powered by a hand-built 4.0-liter twin-turbocharged V8 engine producing 630 horsepower and 664 lb-ft of torque. Other engine options included a detuned version of the same 4.0-liter twin-turbo V8 producing 577 horsepower and 590 lb-ft of torque in the AMG GT 63. All engine options are paired with an AMG SPEEDSHIFT MCT 9-speed automatic transmission. Owners generally praise the car for its blistering performance, luxurious interior, and striking design. However, some common complaints include the firm ride quality, complex infotainment system, and high maintenance costs.

Engine

4.0L Twin-Turbo V8 (M177)

• Oil Leaks from Turbocharger Oil Lines
  • Description/Symptoms: Oil leaks observed around the turbochargers, often accompanied by a burning oil smell.
  • Solution: Replace the faulty oil lines and seals.
  • Estimated Cost to Fix: $1,000 - $2,000+
  • Recalls: None Found
• Valve Cover Gasket Leaks
  • Description/Symptoms: Oil leaks seeping from the valve cover gaskets, potentially leading to burning oil smells or visible oil accumulation.
  • Solution: Replacement of the valve cover gaskets.
  • Estimated Cost to Fix: $800 - $1,500+
  • Recalls: None Found

Transmission

AMG SPEEDSHIFT MCT 9-Speed Automatic (9G-Tronic)

• Rough or Delayed Shifting
  • Description/Symptoms: Hesitation or jerkiness during gear changes, particularly at lower speeds.
  • Solution: Software update to the transmission control module (TCM), or in severe cases, valve body replacement.
  • Estimated Cost to Fix: $300 - $3,000+
  • Recalls: None Found
• Transmission Slippage
  • Description/Symptoms: Engine revving without corresponding acceleration, indicating slippage within the transmission.
  • Solution: Requires a full transmission replacement.
  • Estimated Cost to Fix: $8,000 - $12,000+
  • Recalls: None Found

Suspension

• Air Suspension Malfunctions
  • Description/Symptoms: Vehicle sagging on one side, “car too low” warnings, or complete failure of the air suspension system.
  • Solution: Diagnosis to determine the faulty component (air strut, compressor, valve block) and replacement.
  • Estimated Cost to Fix: $1,500 - $4,000+
  • Recalls: None Found
• Squeaking Noises
  • Description/Symptoms: Squeaking from front or rear suspension while driving over bumps or rough surfaces.
  • Solution: Replacing worn bushings or joints in the suspension.
  • Estimated Cost to Fix: $300 - $1,000+
  • Recalls: None Found

Electrical

• Infotainment System Issues (MBUX)
  • Description/Symptoms: System freezing, lagging, screen going blank, or Bluetooth connectivity problems.
  • Solution: Software updates, module replacements, or in some cases, a full system reset.
  • Estimated Cost to Fix: $0 (software update) - $2,500+ (module replacement)
  • Recalls: None Found
• Sensor Malfunctions (Parking Sensors, Blind Spot Monitoring)
  • Description/Symptoms: False alarms, system inoperability, or error messages related to parking sensors or blind spot monitoring.
  • Solution: Replacement of the faulty sensor.
  • Estimated Cost to Fix: $300 - $800+ per sensor
  • Recalls: None Found

Exterior

• Automatic Trunk Lid Failure
  • Description/Symptoms: Power trunk lid not opening or closing, or closing very slowly
  • Solution: Replacing the motor that controls the trunk operation.
  • Estimated Cost to Fix: $700 - $1,200+
  • Recalls: None Found

Interior

• Seat Heater Malfunctions
  • Description/Symptoms: Seat heaters not working, working intermittently, or overheating.
  • Solution: Replacement of the heating element or control module.
  • Estimated Cost to Fix: $500 - $1,200+ per seat
  • Recalls: None Found

Summary

The 2019 Mercedes-Benz AMG GT 63 S is a performance vehicle with potential issues ranging from relatively minor electrical glitches to more serious engine and transmission problems. Oil leaks, air suspension malfunctions, and infotainment issues are common concerns. The cost of repairs can vary significantly, with some fixes being relatively inexpensive while others, such as transmission replacement, can be quite costly. Potential buyers should be aware of these potential issues and thoroughly inspect the vehicle’s maintenance history and perform a pre-purchase inspection to assess its condition.