2010 Mercedes-Benz G550

The 2010 Mercedes-Benz G550 is a luxury SUV known for its iconic, boxy design, off-road capabilities, and powerful engine. For the 2010 model year, the G550 came standard with a 5.5-liter V8 engine producing 382 horsepower and 391 lb-ft of torque. While appreciated for its ruggedness, luxury features, and distinctive styling, owners have reported concerns about fuel economy, high maintenance costs, and occasional reliability issues.

Engine

5.5L V8

• Camshaft Adjuster Solenoid Failure
  • Description/Symptoms: Check engine light illuminated. Rough idling, reduced engine performance, and potential stalling. Diagnostic codes related to camshaft position.
  • Solution: Replacement of the faulty camshaft adjuster solenoid(s).
  • Estimated Cost to Fix: $400 - $800+ (depending on the number of solenoids replaced and labor costs).
  • Recalls: None Found
• Valve Cover Gasket Leaks
  • Description/Symptoms: Oil leaks visible around the valve covers, burning oil smell, and low oil level.
  • Solution: Replacement of the valve cover gaskets.
  • Estimated Cost to Fix: $300 - $600+
  • Recalls: None Found

Transmission

7G-TRONIC (722.9) 7-Speed Automatic Transmission

• Valve Body Issues
  • Description/Symptoms: Harsh or delayed shifting, slipping between gears, or failure to shift. Diagnostic codes related to transmission valve body function.
  • Solution: Replacement or rebuild of the transmission valve body.
  • Estimated Cost to Fix: $1,500 - $3,000+
  • Recalls: None Found
• Torque Converter Failure
  • Description/Symptoms: Shuddering or vibration at low speeds, stalling, or complete loss of transmission function.
  • Solution: Replacement of the torque converter.
  • Estimated Cost to Fix: $1,200 - $2,500+
  • Recalls: None Found

Suspension

• Air Suspension Compressor Failure
  • Description/Symptoms: Vehicle sagging or uneven ride height, failure of the suspension to adjust, error messages on the dashboard.
  • Solution: Replacement of the air suspension compressor.
  • Estimated Cost to Fix: $800 - $1,800+
  • Recalls: None Found
• Air Strut Leaks
  • Description/Symptoms: Vehicle sagging, especially overnight, hissing sound from the struts, and rough ride quality.
  • Solution: Replacement of the leaking air strut(s).
  • Estimated Cost to Fix: $1,000 - $2,000+ per strut
  • Recalls: None Found

Electrical

• Instrument Cluster Failure
  • Description/Symptoms: Intermittent or complete failure of the instrument cluster, blank screen, inaccurate readings, or flickering lights.
  • Solution: Replacement or repair of the instrument cluster.
  • Estimated Cost to Fix: $800 - $2,000+
  • Recalls: None Found
• Window Regulator Failure
  • Description/Symptoms: Window not moving up or down, slow or erratic window movement, or unusual noises when operating the window.
  • Solution: Replacement of the window regulator.
  • Estimated Cost to Fix: $300 - $700+
  • Recalls: None Found

Exterior

• Door Lock Actuator Failure
  • Description/Symptoms: Door not locking or unlocking with the remote or interior switch, unusual noises from the door lock mechanism.
  • Solution: Replacement of the faulty door lock actuator.
  • Estimated Cost to Fix: $250 - $600+
  • Recalls: None Found

Interior

• Sunroof Issues
  • Description/Symptoms: Sunroof not opening or closing properly, getting stuck, making unusual noises, or leaking.
  • Solution: Repair or replacement of the sunroof mechanism.
  • Estimated Cost to Fix: $500 - $1,500+
  • Recalls: None Found

Summary:

The 2010 Mercedes-Benz G550 can be prone to some relatively costly issues. The air suspension and transmission, in particular, can present significant repair expenses. The engine, while generally reliable, may experience leaks that add to the overall maintenance burden. While there are not any recalls on the vehicle, the issues with the camshaft adjuster solenoid failure can cause significant damage to the engine if not repaired. Potential buyers should carefully inspect these areas and factor in potential repair costs when considering a purchase.