2020 Mercedes-Benz AMG GT 63

The 2020 Mercedes-Benz AMG GT 63 is a high-performance luxury sedan that blends exhilarating power with refined comfort. Offered in various trims, including the GT 63 and GT 63 S, it caters to enthusiasts seeking a thrilling driving experience. The powerhouse behind the GT 63 is a 4.0-liter twin-turbo V8 engine, producing a staggering 577 horsepower and 590 lb-ft of torque. The GT 63 S variant takes it a step further, delivering an even more impressive 630 horsepower and 664 lb-ft of torque. Both engines are paired with the AMG SPEEDSHIFT MCT 9-speed automatic transmission. Owners often praise the car’s blistering acceleration, confident handling, and luxurious interior. However, some common gripes include the high price tag, complex electronics, and potential for expensive maintenance.

Engine

4.0L Twin-Turbo V8 (M177)

• Oil Leaks
  • Description/Symptoms: Oil leaks can occur from various locations, including the valve cover gaskets, oil pan gasket, or rear main seal. Symptoms include visible oil drips under the car, burning oil smell, and low oil level.
  • Solution: Replacing the affected gaskets or seals.
  • Estimated Cost to Fix: $200 - $2000+ depending on the leak’s location and the shop’s labor rates.
  • Recalls: None Found
• Turbocharger Issues
  • Description/Symptoms: Premature turbocharger failure, resulting in reduced power, unusual noises (whining or screeching), and potentially engine damage.
  • Solution: Turbocharger replacement.
  • Estimated Cost to Fix: $3,000 - $6,000+ per turbo, including labor.
  • Recalls: None Found

Transmission

AMG SPEEDSHIFT MCT 9-Speed Automatic

• Rough or Delayed Shifting
  • Description/Symptoms: Hesitation during gear changes, harsh shifts, or difficulty selecting gears.
  • Solution: Software updates, transmission fluid flush, valve body replacement, or potentially a full transmission rebuild or replacement.
  • Estimated Cost to Fix: $200 (software update) - $8,000+ (transmission replacement).
  • Recalls: None Found
• Torque Converter Issues
  • Description/Symptoms: Shuddering or vibration at low speeds, especially during light acceleration.
  • Solution: Torque converter replacement.
  • Estimated Cost to Fix: $2,000 - $4,000+ including labor.
  • Recalls: None Found

Suspension

• Air Suspension Malfunctions
  • Description/Symptoms: The Airmatic suspension may experience issues such as sagging on one side, complete deflation, or failure to adjust ride height. Error messages on the dashboard are common.
  • Solution: Replacing the affected air spring, compressor, or valve block.
  • Estimated Cost to Fix: $1,000 - $4,000+ per corner, depending on the component needing replacement.
  • Recalls: None Found

Electrical

• Infotainment System Freezing or Crashing
  • Description/Symptoms: The MBUX infotainment system can freeze, become unresponsive, or crash, requiring a restart.
  • Solution: Software updates, or replacement of the MBUX unit in severe cases.
  • Estimated Cost to Fix: $0 (software update) - $2,000+ (unit replacement).
  • Recalls: None Found
• Sensor Failures
  • Description/Symptoms: Various sensors (e.g., parking sensors, blind-spot monitoring sensors, lane-keeping assist sensors) may fail, resulting in warning lights and system malfunctions.
  • Solution: Replacing the faulty sensor.
  • Estimated Cost to Fix: $200 - $1,000+ per sensor, depending on the location and type.
  • Recalls: None Found

Exterior

• No Issues Found

Interior

• Sunroof Issues
  • Description/Symptoms: Sunroof may fail to open or close properly, or may make excessive noise during operation.
  • Solution: Sunroof motor replacement, track repair, or complete sunroof assembly replacement.
  • Estimated Cost to Fix: $500 - $2,000+ depending on the issue.
  • Recalls: None Found

Summary The 2020 Mercedes-Benz AMG GT 63, while offering exceptional performance and luxury, is prone to certain issues. Engine oil leaks and turbocharger problems can be costly, while transmission issues may affect driving experience. Air suspension malfunctions are also a common concern. While some electrical issues can be resolved with software updates, others may require more expensive component replacements. The severity and cost of these potential issues range from minor annoyances to major repairs, making a thorough pre-purchase inspection essential.