2014 Mercedes-Benz ML63 AMG

The 2014 Mercedes-Benz ML63 AMG is a high-performance SUV that blends luxury with powerful performance. The ML63 AMG features a hand-built 5.5-liter biturbo V8 engine, producing 518 horsepower and 516 lb-ft of torque (or 550 hp and 561 lb-ft with the optional Performance Package). This engine is paired with an AMG SPEEDSHIFT PLUS 7G-TRONIC seven-speed automatic transmission. Owners often praise the ML63 AMG for its potent engine, luxurious interior, and confident handling. Common complaints revolve around higher running costs associated with its performance nature, including fuel consumption, brake wear, and potential for costly repairs given its complex systems.

Engine

5.5L Biturbo V8

• Turbocharger Failure
  • Description/Symptoms: Whining noise from the engine, loss of power, check engine light.
  • Solution: Replacement of the faulty turbocharger(s).
  • Estimated Cost to Fix: $3,000 - $6,000+
  • Recalls: None Found
• Oil Leaks
  • Description/Symptoms: Oil spots under the car, burning oil smell, low oil level warning light. Common leak locations include valve cover gaskets, oil cooler lines, and rear main seal.
  • Solution: Replacement of the leaking gasket or seal.
  • Estimated Cost to Fix: $200 - $1,500+ depending on location.
  • Recalls: None Found
• Direct Fuel Injector Issues
  • Description/Symptoms: Rough idle, misfires, poor fuel economy, check engine light.
  • Solution: Replacement of faulty fuel injector(s).
  • Estimated Cost to Fix: $200 - $500 per injector
  • Recalls: None Found

Transmission

AMG SPEEDSHIFT PLUS 7G-TRONIC Seven-Speed Automatic

• Torque Converter Failure
  • Description/Symptoms: Shuddering or vibration during gear changes, especially at low speeds, stalling, or complete loss of drive.
  • Solution: Replacement of the torque converter.
  • Estimated Cost to Fix: $2,000 - $4,000+
  • Recalls: None Found
• Valve Body Issues
  • Description/Symptoms: Hard or erratic shifting, slipping between gears, delayed engagement.
  • Solution: Replacement or rebuild of the valve body.
  • Estimated Cost to Fix: $1,500 - $3,000+
  • Recalls: None Found

Suspension

• Airmatic Suspension Failure
  • Description/Symptoms: Vehicle leaning to one side, suspension not leveling, compressor running constantly, “Visit Workshop” message.
  • Solution: Replacement of faulty air struts, compressor, or air lines.
  • Estimated Cost to Fix: $1,000 - $2,500+ per strut
  • Recalls: None Found
• Air Compressor Failure
  • Description/Symptoms: Suspension not raising or lowering, “Visit Workshop” message, excessive noise from the compressor area.
  • Solution: Replacement of the air compressor.
  • Estimated Cost to Fix: $800 - $1,500+
  • Recalls: None Found

Electrical

• Battery Drain Issues
  • Description/Symptoms: Dead battery, difficulty starting the car, frequent jump starts required.
  • Solution: Diagnose and repair parasitic drain, replace faulty module, or replace the battery.
  • Estimated Cost to Fix: $150 - $500+ depending on cause.
  • Recalls: None Found
• SAM (Signal Acquisition Module) Failure
  • Description/Symptoms: Various electrical issues, including lighting problems, wiper malfunctions, and issues with central locking.
  • Solution: Replacement of the faulty SAM unit.
  • Estimated Cost to Fix: $800 - $1,500+
  • Recalls: None Found

Exterior

• Headlight Issues
  • Description/Symptoms: LED daytime running lights failing, adaptive headlight malfunctions.
  • Solution: Replacement of the affected headlight assembly or control unit.
  • Estimated Cost to Fix: $1,000 - $3,000+
  • Recalls: None Found

Interior

• Navigation/Infotainment System Issues
  • Description/Symptoms: System freezing, unresponsive touchscreen, GPS malfunctions.
  • Solution: Software update, replacement of the head unit.
  • Estimated Cost to Fix: $200 - $2,000+
  • Recalls: None Found

Summary

The 2014 Mercedes-Benz ML63 AMG, while offering exceptional performance and luxury, can be prone to several issues, particularly related to its complex engine, transmission, and air suspension. Repairs can be costly due to the specialized parts and labor required. The most severe issues include engine turbocharger failures and air suspension malfunctions. Careful inspection and maintenance are crucial for mitigating potential problems.