2024 Mercedes-Benz GLS63 AMG

The 2024 Mercedes-Benz GLS63 AMG is a high-performance SUV that blends luxury with exhilarating power. Featuring a handcrafted AMG 4.0L V8 biturbo engine producing 603 horsepower and 627 lb-ft of torque, coupled with an AMG SPEEDSHIFT TCT 9-speed automatic transmission, it delivers impressive acceleration and handling. Other GLS models offer different engine options, including a milder inline-6 turbo. Owners often praise its powerful engine, luxurious interior, and advanced technology, while some express concerns about its high price, complex electronics, and potential maintenance costs.

Engine

AMG 4.0L V8 Biturbo

• Oil Leaks from Turbocharger Oil Supply Lines
  • Description/Symptoms: Oil leaks are reported from the turbocharger oil supply lines. This can result in visible oil leaks under the vehicle, a burning oil smell, and potentially low oil levels.
  • Solution: Replacing the faulty oil supply lines with updated parts.
  • Estimated Cost to Fix: $800 - $1,500+
• Malfunctioning Auxiliary Coolant Pump
  • Description/Symptoms: The auxiliary coolant pump, responsible for cooling the turbochargers after engine shutdown, may fail. Symptoms include reduced engine performance, overheating, and diagnostic trouble codes (DTCs) related to the cooling system.
  • Solution: Replacing the faulty auxiliary coolant pump.
  • Estimated Cost to Fix: $500 - $1,000+

Transmission

AMG SPEEDSHIFT TCT 9-Speed Automatic Transmission

• Rough or Delayed Shifting
  • Description/Symptoms: Some owners have reported instances of rough or delayed shifting, particularly during downshifts or under heavy acceleration. This may be accompanied by a noticeable “clunk” or “jerk.”
  • Solution: In some cases, a software update or transmission adaptation reset can resolve the issue. In more severe cases, valve body replacement or transmission overhaul may be required.
  • Estimated Cost to Fix: $300 (software update) - $5,000+ (transmission overhaul)

Suspension

• AIRMATIC Suspension Malfunctions
  • Description/Symptoms: Issues with the AIRMATIC air suspension system, including uneven ride height, suspension warning lights, and a generally uncomfortable ride. This can be caused by leaks in the air struts, a failing air compressor, or faulty sensors.
  • Solution: Diagnosing the source of the leak or failure and replacing the affected components (air struts, compressor, sensors).
  • Estimated Cost to Fix: $1,000 - $3,000+ per strut, $800 - $2,000+ for compressor

Electrical

• MBUX Infotainment System Glitches
  • Description/Symptoms: The Mercedes-Benz User Experience (MBUX) infotainment system can experience glitches, including freezing, screen blackouts, slow response times, and software errors.
  • Solution: Software updates, system resets, or, in severe cases, replacement of the MBUX control unit.
  • Estimated Cost to Fix: $0 (software update) - $2,000+ (control unit replacement)
• Sensor Failures (Parking Sensors, Blind Spot Monitoring)
  • Description/Symptoms: Failure of parking sensors or blind spot monitoring systems. Symptoms include error messages, non-functional alerts, and potential safety hazards.
  • Solution: Replacement of the faulty sensors.
  • Estimated Cost to Fix: $300 - $800+ per sensor

Exterior

• Sunroof/Moonroof Issues
  • Description/Symptoms: Reports of sunroof/moonroof malfunctions, including failure to open or close properly, excessive noise during operation, and water leaks.
  • Solution: Repair or replacement of the sunroof motor, track, or seals.
  • Estimated Cost to Fix: $500 - $2,000+

Interior

• Seat Control Malfunctions
  • Description/Symptoms: Electric seat controls failing, causing inability to adjust seat position or lumbar support.
  • Solution: Replacement of the faulty seat control module or motor.
  • Estimated Cost to Fix: $400 - $1,200+

Summary

The 2024 Mercedes-Benz GLS63 AMG, while a powerful and luxurious vehicle, can be prone to certain issues. Electrical gremlins within the MBUX system and various sensor failures appear to be common, along with potential problems with the AIRMATIC suspension. More serious and costly concerns include engine oil leaks and transmission shifting issues. While some problems may be resolved with software updates, others necessitate component replacement, potentially leading to significant repair costs. The severity ranges from minor inconveniences to potential safety concerns, emphasizing the importance of thorough inspections and proactive maintenance.