2005 Mercedes-Benz G55 AMG

2005 Mercedes-Benz G55 AMG

The 2005 Mercedes-Benz G55 AMG is a high-performance SUV known for its rugged construction, powerful engine, and luxurious interior. It is powered by a hand-built 5.5-liter V8 engine producing 469 horsepower and 516 lb-ft of torque. The engine is paired with a 5-speed automatic transmission and a full-time 4WD system.

Despite its reputation for durability, the 2005 Mercedes-Benz G55 AMG is not immune to certain issues. Here’s a detailed list of the common problems reported by owners:

Engine

• 5.5-Liter V8 Supercharged
  • Supercharger Failure: The supercharger may fail due to excessive wear or oil starvation, resulting in loss of power and excessive noise.
    • Solution: Replace the supercharger.
    • Estimated Cost to Fix: $5,000 - $7,000+
  • Fuel Injector Failure: Faulty fuel injectors can cause engine misfires, rough idle, and poor performance.
    • Solution: Replace the fuel injectors.
    • Estimated Cost to Fix: $2,000 - $3,000+
  • Crankshaft Sensor Failure: A faulty crankshaft sensor can prevent the engine from starting or cause intermittent stalling.
    • Solution: Replace the crankshaft sensor.
    • Estimated Cost to Fix: $200 - $400+
  • Intake Manifold Leaks: Leaks in the intake manifold can cause vacuum issues, rough idle, and loss of power.
    • Solution: Replace intake manifold gaskets.
    • Estimated Cost to Fix: $500 - $1,000+

Transmission

• 5-Speed Automatic
  • Torque Converter Shudder: The torque converter may develop a shudder or vibration during acceleration.
    • Solution: Replace the torque converter.
    • Estimated Cost to Fix: $3,000 - $5,000+
  • Transmission Slippage: The transmission may slip or hesitate during gear changes due to worn clutches or faulty solenoids.
    • Solution: Rebuild or replace the transmission.
    • Estimated Cost to Fix: $4,000 - $7,000+
  • Valve Body Failure: A faulty valve body can cause erratic gear shifting or prevent the transmission from engaging gears properly.
    • Solution: Replace the valve body.
    • Estimated Cost to Fix: $1,000 - $2,000+

Suspension

• Front Upper Control Arm Bushings: Worn upper control arm bushings can cause excessive front end noise and poor handling.
  • Solution: Replace the upper control arm bushings.
  • Estimated Cost to Fix: $200 - $400+
• Rear Differential Mount Failure: A failed rear differential mount can result in a clunking or groaning noise during acceleration or braking.
  • Solution: Replace the differential mount.
  • Estimated Cost to Fix: $300 - $500+

Electrical

• Alternator Failure: The alternator may fail due to overheating or worn brushes, leading to electrical system issues and battery discharge.
  • Solution: Replace the alternator.
  • Estimated Cost to Fix: $500 - $1,000+
• Starter Failure: A worn or faulty starter can prevent the engine from starting.
  • Solution: Replace the starter.
  • Estimated Cost to Fix: $300 - $500+
• Central Locking Module Failure: A malfunctioning central locking module can cause issues with locking and unlocking the doors, as well as other electrical functions.
  • Solution: Replace the central locking module.
  • Estimated Cost to Fix: $400 - $600+

Exterior

• Sunroof Panel Rattle: The sunroof panel may rattle or vibrate due to loose or worn components.
  • Solution: Adjust or replace the sunroof panel seals.
  • Estimated Cost to Fix: $200 - $400+

Interior

• Climate Control Malfunction: The climate control system may malfunction due to a faulty blend door actuator or temperature sensor.
  • Solution: Replace the blend door actuator or temperature sensor.
  • Estimated Cost to Fix: $500 - $700+
• Switchgear Failures: Various interior switches, such as window switches or seat controls, may fail due to wear or electrical issues.
  • Solution: Replace the faulty switch.
  • Estimated Cost to Fix: $100 - $300+

Recalls:

• NHTSA Campaign Number: 05V165000: Loss of Brake Assist Function
• NHTSA Campaign Number: 08V385000: Fuel Leakage

Summary

The 2005 Mercedes-Benz G55 AMG is a capable and luxurious SUV, but it is not without its potential issues. Engine problems, particularly with the supercharger and fuel injectors, are among the most common and costly. The transmission can also suffer from faults, leading to torque converter shudder, slippage, or valve body failure. Suspension and electrical issues, while less severe, can still affect the vehicle’s ride quality and functionality. Overall, the cost of ownership for the G55 AMG can be substantial due to the potential for expensive repairs and maintenance.