2016 Mercedes-Benz GL63 AMG

The 2016 Mercedes-Benz GL63 AMG is a high-performance SUV, boasting a handcrafted 5.5-liter biturbo V8 engine producing 550 horsepower and 561 lb-ft of torque, paired with a 7-speed AMG Speedshift Plus transmission. While loved for its powerful engine, luxurious interior, and sporty handling for its size, some owners have reported issues that potential buyers should be aware of. The GL63 AMG provides an exhilarating driving experience, but potential buyers should be prepared for the maintenance costs associated with a high-performance vehicle.

Engine

5.5L Biturbo V8

• Oil Leaks
  • Description/Symptoms: Oil leaks can occur from various points, including the valve cover gaskets, oil filter housing, and rear main seal. Symptoms include visible oil drips under the vehicle, a burning oil smell, and low oil level warnings.
  • Solution: Replacing the faulty gaskets or seals. Properly torquing bolts during reassembly is crucial.
  • Estimated Cost to Fix: $200 - $1500+ depending on the location and severity.
  • Recalls: None Found
• Turbocharger Failure
  • Description/Symptoms: The turbochargers can fail due to oil starvation, wear and tear, or other mechanical issues. Symptoms include loss of power, unusual noises from the engine, and excessive smoke.
  • Solution: Replacement of the turbocharger(s). Addressing any underlying issues causing the failure.
  • Estimated Cost to Fix: $3,000 - $6,000+ per turbo.
  • Recalls: None Found
• Check Engine Light Due to Various Sensors
  • Description/Symptoms: Sensors such as oxygen sensors, mass airflow (MAF) sensors, and camshaft position sensors can fail, triggering the check engine light.
  • Solution: Diagnosis to identify the faulty sensor and subsequent replacement.
  • Estimated Cost to Fix: $200 - $600+ depending on the sensor and labor.
  • Recalls: None Found

Transmission

7-Speed AMG Speedshift Plus

• Rough Shifting/Hesitation
  • Description/Symptoms: Some owners report rough or delayed shifts, particularly when cold. Hesitation during acceleration can also occur.
  • Solution: A transmission fluid flush and filter change might help in some cases. If the problem persists, valve body issues or internal component wear might require more extensive repairs or replacement.
  • Estimated Cost to Fix: $300 - $5,000+ depending on the cause.
  • Recalls: None Found

Suspension

• Air Suspension Failure
  • Description/Symptoms: The air suspension system can experience leaks, compressor failure, or sensor malfunctions. Symptoms include uneven ride height, sagging, or the vehicle failing to raise or lower properly.
  • Solution: Replacing the faulty air struts, air compressor, or related sensors. Addressing air leaks in the system.
  • Estimated Cost to Fix: $800 - $3,000+ per strut or compressor, depending on the component and labor.
  • Recalls: None Found

Electrical

• Battery Drain
  • Description/Symptoms: Some owners have reported issues with excessive battery drain, leading to starting problems or a dead battery.
  • Solution: Identifying the source of the drain, which could be a faulty module, parasitic draw, or a failing alternator.
  • Estimated Cost to Fix: $100 - $1,000+ depending on the cause.
  • Recalls: None Found
• Malfunctioning Sensors
  • Description/Symptoms: Issues with various sensors such as park distance control (PDC) sensors, tire pressure monitoring system (TPMS) sensors, and rain sensors.
  • Solution: Diagnosis to identify the faulty sensor and subsequent replacement.
  • Estimated Cost to Fix: $150 - $500+ per sensor, depending on the type and labor.
  • Recalls: None Found

Exterior

• Headlight Issues
  • Description/Symptoms: Some owners have reported issues with the adaptive headlights, including flickering, failure to adjust properly, or complete failure.
  • Solution: Replacing the headlight assembly or addressing wiring/control module issues.
  • Estimated Cost to Fix: $1,000 - $3,000+ per headlight.
  • Recalls: None Found

Interior

• Navigation/Infotainment System Issues
  • Description/Symptoms: Freezing, lagging, or complete failure of the COMAND infotainment system. Bluetooth connectivity problems.
  • Solution: Software updates, replacement of the COMAND unit, or addressing wiring issues.
  • Estimated Cost to Fix: $200 - $2,000+ depending on the issue.
  • Recalls: None Found

Summary

The 2016 Mercedes-Benz GL63 AMG, while a powerful and luxurious SUV, can present owners with a range of issues. The most significant concerns revolve around the engine (oil leaks, turbocharger issues), transmission (rough shifting), and suspension (air suspension failure). Electrical issues and infotainment system problems also surface. Repair costs can vary widely depending on the specific issue, but due to the high-performance nature of the vehicle, owners should be prepared for potentially expensive repairs. While not all owners experience these problems, a thorough inspection before purchase and diligent maintenance are crucial for long-term reliability.