2004 Mercedes-Benz G55 AMG

Introduction:

The 2004 Mercedes-Benz G55 AMG is a high-performance luxury SUV known for its rugged off-road capabilities and powerful V8 engine. It came with a 5.4-liter supercharged V8 engine producing 469 horsepower and 516 lb-ft of torque paired to a 5-speed automatic transmission.

Owners praise the G55 AMG’s impressive power, spacious cabin, and iconic exterior design. However, it has been known for having some potential issues.

Engine

5.4L Supercharged V8

• Intake Manifold Failure:
  • Description/Symptoms: Intake manifold cracks causing rough idling, reduced power, and increased fuel consumption.
  • Solution: Replacement of the intake manifold.
  • Estimated Cost to Fix: $1,500 - $2,500+
  • Recalls: None Found
• Supercharger Bearing Failure:
  • Description/Symptoms: Noisy supercharger, reduced power output, and potential engine damage.
  • Solution: Replacement of the supercharger bearings or the entire supercharger unit.
  • Estimated Cost to Fix: $2,000 - $4,000+
  • Recalls: None Found

Transmission

5-speed Automatic

• Transmission Slippage:
  • Description/Symptoms: Transmission slipping gears, especially under load or when shifting from 2nd to 3rd gear.
  • Solution: Rebuild or replacement of the transmission.
  • Estimated Cost to Fix: $3,000 - $5,000+
  • Recalls: None Found
• Torque Converter Failure:
  • Description/Symptoms: Transmission shuddering, lack of power, or overheating.
  • Solution: Replacement of the torque converter.
  • Estimated Cost to Fix: $1,000 - $1,500+
  • Recalls: None Found

Suspension

• Air Suspension Compressor Failure:
  • Description/Symptoms: Suspension system malfunction, uneven ride height, or suspension sagging.
  • Solution: Replacement of the air suspension compressor.
  • Estimated Cost to Fix: $1,200 - $1,800+
  • Recalls: None Found
• Strut Mount Failure:
  • Description/Symptoms: Knocking noise from the suspension, especially over bumps.
  • Solution: Replacement of the strut mounts.
  • Estimated Cost to Fix: $500 - $800+
  • Recalls: None Found

Electrical

• Battery Drain:
  • Description/Symptoms: Battery discharges quickly after a period of inactivity.
  • Solution: Inspection and repair of any faulty electrical components or replacement of the battery.
  • Estimated Cost to Fix: $200 - $500+
  • Recalls: None Found
• Alternator Failure:
  • Description/Symptoms: Battery warning light on, dim or flickering lights, and difficulty starting.
  • Solution: Replacement of the alternator.
  • Estimated Cost to Fix: $700 - $1,200+
  • Recalls: None Found

Exterior

• Rust on Body Panels:
  • Description/Symptoms: Rust spots appearing on metal body panels, such as fenders, doors, or tailgate.
  • Solution: Rust removal and repainting.
  • Estimated Cost to Fix: $500 - $1,500+
  • Recalls: None Found
• Trim Piece Detachment:
  • Description/Symptoms: Plastic trim pieces, such as side skirts or bumper covers, detaching from the body.
  • Solution: Re-attaching or replacing the trim pieces.
  • Estimated Cost to Fix: $100 - $500+
  • Recalls: None Found

Interior

• Heater Core Failure:
  • Description/Symptoms: Lack of heat coming from the heater vents, or sweet smell in the cabin.
  • Solution: Replacement of the heater core.
  • Estimated Cost to Fix: $1,000 - $1,500+
  • Recalls: None Found
• Power Window Failure:
  • Description/Symptoms: Power window switches not functioning or windows slow to operate.
  • Solution: Repair or replacement of the power window motor or switches.
  • Estimated Cost to Fix: $200 - $600+
  • Recalls: None Found

Summary:

The 2004 Mercedes-Benz G55 AMG is generally a reliable SUV, but it does have some potential issues. The most common concerns are related to its engine, transmission, and suspension components. These issues can be expensive to fix, with some costing over $2,000. It’s important to consider these possible issues when purchasing or maintaining a G55 AMG.