2010 Mercedes-Benz G55 AMG

The 2010 Mercedes-Benz G55 AMG is a high-performance SUV known for its iconic boxy design, luxurious interior, and powerful engine. The G55 AMG was only offered with one engine option, a 5.4L Supercharged V8 which produced 500 horsepower and 516 lb-ft of torque. This engine was paired with a 5-speed automatic transmission. Owners often praise the G55 AMG for its distinctive styling, off-road capabilities, and powerful acceleration. However, common complaints include poor fuel economy, relatively dated technology, and high maintenance costs.

Engine

5.4L Supercharged V8

• Supercharger failure
  • Description/Symptoms: Whining noise from the engine, loss of power, and potentially the check engine light illuminating.
  • Solution: Replacing the supercharger with a new or rebuilt unit.
  • Estimated Cost to Fix: $4,000 - $8,000+
  • Recalls: None Found
• Valve Cover Gasket Leaks
  • Description/Symptoms: Oil leaks from the valve covers, burning oil smell, and potentially low oil levels.
  • Solution: Replacing the valve cover gaskets.
  • Estimated Cost to Fix: $500 - $1,000
  • Recalls: None Found
• Intercooler Pump Failure
  • Description/Symptoms: Overheating, reduced engine performance, check engine light. The intercooler pump circulates coolant to cool the intake air.
  • Solution: Replacing the intercooler pump.
  • Estimated Cost to Fix: $300 - $600
  • Recalls: None Found

Transmission

5-Speed Automatic Transmission

• Transmission Conductor Plate Failure
  • Description/Symptoms: Erratic shifting, getting stuck in gear, limp mode, or complete transmission failure.
  • Solution: Replacing the conductor plate and potentially the valve body.
  • Estimated Cost to Fix: $1,500 - $3,000+
  • Recalls: None Found
• Torque Converter Failure
  • Description/Symptoms: Shuddering during acceleration, unusual noises, and poor transmission performance.
  • Solution: Replacing the torque converter.
  • Estimated Cost to Fix: $1,000 - $2,500
  • Recalls: None Found

Suspension

• Air Suspension Compressor Failure
  • Description/Symptoms: The vehicle sagging on one or more corners, the air suspension warning light illuminating, and the compressor running constantly.
  • Solution: Replacing the air suspension compressor.
  • Estimated Cost to Fix: $800 - $1,500+
  • Recalls: None Found
• Air Strut Leaks
  • Description/Symptoms: The vehicle sagging, especially overnight, a rough ride, and hissing sounds from the struts.
  • Solution: Replacing the leaking air struts.
  • Estimated Cost to Fix: $1,000 - $2,000+ per strut
  • Recalls: None Found

Electrical

• Battery Drain
  • Description/Symptoms: The battery draining quickly, especially when the vehicle is not driven for a few days. This is often attributed to various modules not shutting down properly.
  • Solution: Diagnosing and addressing the parasitic draw, which may involve replacing a faulty module or repairing wiring.
  • Estimated Cost to Fix: $200 - $1,000+ (depending on the source of the drain)
  • Recalls: None Found
• Heated Seat Malfunction
  • Description/Symptoms: Heated seats not working, overheating, or only working intermittently.
  • Solution: Replacing the faulty heating element or control module.
  • Estimated Cost to Fix: $300 - $800
  • Recalls: None Found

Exterior

• Rust
  • Description/Symptoms: Rust forming around body seams, wheel wells, and undercarriage.
  • Solution: Rust repair, body work, and repainting affected areas.
  • Estimated Cost to Fix: $500 - $5,000+ (depending on severity)
  • Recalls: None Found

Interior

• Headliner Sagging
  • Description/Symptoms: The headliner detaching from the roof and sagging.
  • Solution: Replacing the headliner.
  • Estimated Cost to Fix: $500 - $1,200
  • Recalls: None Found
• Navigation/Infotainment System Issues
  • Description/Symptoms: Freezing, slow response times, navigation errors, and failure to boot up. The system is dated and prone to glitches.
  • Solution: Updating software (if available), repairing or replacing the head unit.
  • Estimated Cost to Fix: $300 - $2,000+ (depending on the issue and solution)
  • Recalls: None Found

Summary

The 2010 Mercedes-Benz G55 AMG is a desirable vehicle, but potential buyers should be aware of the common issues. The most significant concerns revolve around the engine (specifically supercharger problems), transmission (conductor plate), and suspension (air suspension). Electrical gremlins and interior issues are also present. Repair costs can be substantial, making a thorough pre-purchase inspection essential. The air suspension and supercharger can be particularly costly if repair is needed.