2005 INFINITI G35

The 2005 Infiniti G35 is a popular sports sedan known for its performance, handling, and stylish design. It came with two engine options: a 3.5L V6 producing either 260 horsepower and 260 lb-ft of torque (sedan) or 280 horsepower and 270 lb-ft of torque (coupe), and a higher-output 3.5L V6 rated at 298 horsepower and 260 lb-ft of torque (Coupe Rev-Up Package). Transmission choices include a 5-speed automatic or a 6-speed manual. Owners appreciate the G35’s sporty driving experience and value, but common complaints include premature brake wear, oil consumption, and electrical issues.

Engine

3.5L V6 (VQ35DE) - 260/280 HP

• Excessive Oil Consumption
  • Description/Symptoms: Higher-than-normal oil consumption, sometimes requiring a quart of oil to be added every 1,000 miles or less. Blueish smoke from the exhaust pipe during cold start.
  • Solution: Replacing valve stem seals or piston rings may be necessary.
  • Estimated Cost to Fix: $1,500 - $4,000+
  • Recalls: None Found
• Timing Chain Rattle
  • Description/Symptoms: Rattling noise upon start-up, especially when cold, indicating wear or failure of the timing chain tensioners.
  • Solution: Replacing the timing chain, tensioners, and guides.
  • Estimated Cost to Fix: $1,200 - $2,500
  • Recalls: None Found

3.5L V6 (VQ35DE Rev-Up) - 298 HP

• Excessive Oil Consumption
  • Description/Symptoms: Significantly higher oil consumption than the standard VQ35DE, often exceeding a quart every 1,000 miles. Blueish smoke from the exhaust pipe, and risk of engine damage if oil levels are not monitored and maintained.
  • Solution: Replacement of piston rings is typically required. Some owners have reported success with engine rebuilds.
  • Estimated Cost to Fix: $2,500 - $5,000+
  • Recalls: None Found
• Valve Train Noise
  • Description/Symptoms: Ticking or tapping noise, especially at idle, due to worn valve lifters or rocker arms.
  • Solution: Replacing the worn valve lifters and/or rocker arms.
  • Estimated Cost to Fix: $800 - $2,000
  • Recalls: None Found

Transmission

5-Speed Automatic

• Harsh Shifting
  • Description/Symptoms: Rough or jerky shifts, particularly between 1st and 2nd gear. May also experience slipping between gears.
  • Solution: Fluid flush and filter replacement might help in early stages. Valve body replacement or transmission rebuild may be required.
  • Estimated Cost to Fix: $200 (fluid flush) - $3,500+ (rebuild/replacement)
  • Recalls: None Found

6-Speed Manual

• Clutch Issues
  • Description/Symptoms: Clutch slippage, difficulty engaging gears, or a soft/spongy clutch pedal feel. Worn clutch disc, pressure plate, or throw-out bearing.
  • Solution: Replacement of the clutch kit (disc, pressure plate, and throw-out bearing).
  • Estimated Cost to Fix: $800 - $1,800
  • Recalls: None Found

Suspension

• Worn Suspension Bushings
  • Description/Symptoms: Clunking or squeaking noises from the suspension, especially when going over bumps. Reduced handling precision and stability.
  • Solution: Replacing the worn bushings (control arms, sway bar links, etc.).
  • Estimated Cost to Fix: $300 - $1,000+ (depending on the number and location of bushings)
  • Recalls: None Found
• Strut and Shock Absorber Failure
  • Description/Symptoms: Bouncy ride, excessive body roll during cornering, and poor handling.
  • Solution: Replacement of struts and/or shock absorbers.
  • Estimated Cost to Fix: $400 - $1,200
  • Recalls: None Found

Electrical

• Window Motor Failure
  • Description/Symptoms: Windows failing to roll up or down, or moving very slowly.
  • Solution: Replacement of the window motor.
  • Estimated Cost to Fix: $200 - $400
  • Recalls: None Found
• Battery Drain
  • Description/Symptoms: Car battery drains overnight or within a few days, even with a new battery. Parasitic draw from faulty electronics.
  • Solution: Identify and repair the source of the parasitic draw (e.g., faulty relay, aftermarket electronics).
  • Estimated Cost to Fix: $100 - $500+ (depending on the complexity of the issue)
  • Recalls: None Found

Exterior

• Headlight Condensation
  • Description/Symptoms: Moisture buildup inside the headlight housings.
  • Solution: Removing and resealing the headlight housings. Replacement may be necessary if the damage is severe.
  • Estimated Cost to Fix: $100 - $300 (resealing) or $200 - $600+ (replacement)
  • Recalls: None Found

Interior

• Sunroof Motor Failure
  • Description/Symptoms: Sunroof not opening or closing, or moving very slowly.
  • Solution: Replacement of the sunroof motor.
  • Estimated Cost to Fix: $300 - $600
  • Recalls: None Found

Summary:

The 2005 Infiniti G35, while a sporty and enjoyable vehicle, has several common issues that potential buyers should be aware of. The most significant problems revolve around oil consumption, particularly in the Rev-Up engine, and transmission issues, especially with the automatic. Suspension components are also prone to wear. While some repairs are relatively inexpensive (e.g., window motor replacement), others like engine rebuilds or transmission replacements, can be very costly. Buyers should carefully inspect potential purchases for these issues, especially oil consumption, and factor potential repair costs into their budget.