2019 Mercedes-Benz GLC63 AMG

The 2019 Mercedes-Benz GLC63 AMG is a performance SUV that blends luxury with the raw power of AMG engineering. The GLC63 AMG is available with a hand-built 4.0L Biturbo V8 engine producing 469 horsepower and 479 lb-ft of torque in the standard GLC63, and a more potent version producing 503 horsepower and 516 lb-ft of torque in the GLC63 S. Both versions are mated to an AMG SPEEDSHIFT MCT 9-speed automatic transmission. Owners often praise the GLC63 AMG for its exhilarating acceleration, sporty handling, and luxurious interior. However, some common complaints include the firm ride quality, particularly on rough roads, and the high running costs associated with a performance vehicle.

Engine

4.0L Biturbo V8 (M177)

• Turbocharger Failure
  • Description/Symptoms: Whining noise from the engine, loss of power, check engine light. Issues could be caused by oil starvation.
  • Solution: Replace the faulty turbocharger(s). Address any underlying oiling issues.
  • Estimated Cost to Fix: $3,000 - $6,000+ (depending on location and if one or both need replacing)
  • Recalls: None Found
• Oil Leaks
  • Description/Symptoms: Oil spots under the vehicle, burning oil smell, low oil level warning. Common leak points include valve cover gaskets and the oil filter housing.
  • Solution: Replace the leaking gasket(s) or component(s).
  • Estimated Cost to Fix: $200 - $1,500+ depending on the location of the leak.
  • Recalls: None Found

Transmission

AMG SPEEDSHIFT MCT 9-speed automatic

• Rough or Delayed Shifting
  • Description/Symptoms: Harsh shifts, delayed engagement, or slipping between gears, particularly at lower speeds.
  • Solution: Software update or transmission fluid change may resolve minor issues. More severe cases may require valve body replacement or transmission rebuild.
  • Estimated Cost to Fix: $300 (fluid change) - $5,000+ (rebuild or replacement)
  • Recalls: None Found

Suspension

• Air Suspension Malfunctions (if equipped)
  • Description/Symptoms: Vehicle leaning to one side, ride height not adjusting properly, error message on the dashboard.
  • Solution: Diagnose the issue (air leak, faulty sensor, compressor failure). Replace the affected component.
  • Estimated Cost to Fix: $500 - $3,000+ depending on the component.
  • Recalls: None Found

Electrical

• Battery Drain
  • Description/Symptoms: Dead battery after short periods of inactivity, difficulty starting the vehicle.
  • Solution: Identify the parasitic draw (faulty module, aftermarket accessory). Repair or replace the offending component.
  • Estimated Cost to Fix: $100 - $1,000+ (depending on the source of the drain)
  • Recalls: None Found
• Infotainment System Glitches
  • Description/Symptoms: Freezing, slow response, display issues, Bluetooth connectivity problems.
  • Solution: Software update, system reset, or replacement of the head unit.
  • Estimated Cost to Fix: $0 (software update) - $2,000+ (head unit replacement)
  • Recalls: None Found

Exterior

• Sensor Failures (Parking Sensors, Blind Spot Monitoring)
  • Description/Symptoms: False alarms, system not functioning properly, error messages on the dashboard.
  • Solution: Replace the faulty sensor(s).
  • Estimated Cost to Fix: $200 - $800+ per sensor, depending on location and labor.
  • Recalls: None Found

Interior

• No Issues Found

Summary

The 2019 Mercedes-Benz GLC63 AMG, while offering thrilling performance and luxury, can present owners with some notable issues. Engine turbocharger and oil leak problems can be expensive to repair. Electrical gremlins and suspension issues can also add to the cost of ownership. Potential buyers should be aware of these common problems and factor them into their purchasing decision.