2019 Mercedes-Benz GLS63 AMG

The 2019 Mercedes-Benz GLS63 AMG is a high-performance SUV that combines luxury with impressive power. Its main engine offering is a handcrafted 5.5-liter biturbo V8 engine that produces 577 horsepower and 561 lb-ft of torque, paired with an AMG SPEEDSHIFT PLUS 7G-TRONIC transmission. While owners generally praise its powerful engine, luxurious interior, and comfortable ride, some common complaints include higher maintenance costs, occasional electrical glitches, and the complexity of the infotainment system.

Engine

5.5-Liter Biturbo V8

• Oil Leaks
  • Description/Symptoms: Oil leaks can develop from various seals and gaskets, including the valve cover gaskets and oil cooler lines. Symptoms include visible oil drips under the vehicle, burning oil smell, and low oil levels.
  • Solution: Replacing the affected gaskets and seals.
  • Estimated Cost to Fix: $300 - $1,500+ depending on the location and complexity of the leak.
  • Recalls: None Found
• Turbocharger Issues
  • Description/Symptoms: Some owners have reported issues with the turbochargers, including premature wear or failure. Symptoms can include a loss of power, unusual noises from the engine, and diagnostic trouble codes (DTCs) related to turbocharger performance.
  • Solution: Replacing or rebuilding the turbochargers.
  • Estimated Cost to Fix: $3,000 - $6,000+ per turbocharger replacement.
  • Recalls: None Found

Transmission

AMG SPEEDSHIFT PLUS 7G-TRONIC

• Rough Shifting
  • Description/Symptoms: Some owners have reported experiencing rough or jerky shifting, particularly at lower speeds. This can be caused by worn valve body components or issues with the transmission control module (TCM).
  • Solution: Replacing or rebuilding the valve body. Flashing/reprogramming the TCM may also resolve the issue.
  • Estimated Cost to Fix: $1,500 - $4,000+
  • Recalls: None Found

Suspension

• Air Suspension Malfunctions
  • Description/Symptoms: The GLS63 AMG features an air suspension system that can be prone to malfunctions. Symptoms include the vehicle sitting unevenly, the suspension not adjusting properly, and error messages related to the air suspension system.
  • Solution: Replacing the affected air struts, compressor, or air lines. In some cases, a software update may resolve the issue.
  • Estimated Cost to Fix: $1,000 - $3,000+ per strut, compressor replacement can cost $800-$1500+.
  • Recalls: None Found

Electrical

• Infotainment System Glitches
  • Description/Symptoms: The COMAND infotainment system can experience glitches, such as freezing, crashing, or unresponsive touch screen.
  • Solution: Performing a software update or replacing the head unit.
  • Estimated Cost to Fix: $100 - $200 for Software Update. $1,000 - $3,000+ for head unit replacement.
  • Recalls: None Found
• Sensor Failures
  • Description/Symptoms: Various sensors, such as those related to the parking system, blind-spot monitoring, and lane keeping assist, can fail.
  • Solution: Replacing the affected sensor.
  • Estimated Cost to Fix: $200 - $800+ depending on the sensor.
  • Recalls: None Found

Exterior

• No Issues Found

Interior

• Sunroof Issues
  • Description/Symptoms: Some owners have reported problems with the sunroof, including difficulty opening or closing, unusual noises, and leaks.
  • Solution: Repairing or replacing the sunroof motor, tracks, or seals.
  • Estimated Cost to Fix: $500 - $1,500+
  • Recalls: None Found

Summary

The 2019 Mercedes-Benz GLS63 AMG, while offering impressive performance and luxury, can be susceptible to several common issues. Engine oil leaks and turbocharger problems represent some of the more significant potential expenses, along with issues with the air suspension and infotainment system. Repair costs can vary widely depending on the severity and location of the problem, ranging from a few hundred dollars for sensor replacements to several thousand for engine or transmission repairs. While most issues aren’t considered catastrophic, the potential for costly repairs makes it crucial for prospective buyers to have the vehicle thoroughly inspected before purchasing.