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2009 INFINITI FX35

2009 INFINITI FX35

Overview

The 2009 INFINITI FX35, powered by its robust 3.5L V6 engine, generally offers a good balance of performance and luxury. As a premium crossover, it was designed with a focus on driving dynamics and upscale features. While many owners report satisfaction, like any vehicle, it has specific areas that have seen more attention from repair shops over time. This analysis focuses on common mechanical and electrical concerns reported by owners and technicians, excluding routine maintenance and standard wear and tear, to provide a clear picture of its long-term reliability.


Engine

3.5L VQ35HR V6

Oil Leaks (Valve Covers/Gaskets)

  • Symptoms: Visible oil on engine components, burning oil smell, low oil level.
  • Solution: Replacement of valve cover gaskets or other related seals.
  • Cost: $300 - $600

Coolant Leaks (Hoses/Radiator)

  • Symptoms: Overheating, visible coolant leaks under the vehicle, sweet smell.
  • Solution: Replacement of leaking hoses, radiator, or water pump.
  • Cost: $400 - $800

Transmission

5-Speed Automatic (RE5R05A)

Harsh Shifting / Delayed Engagement

  • Symptoms: Jerky gear changes, hesitation when shifting into drive or reverse, transmission warning light.
  • Solution: Transmission fluid and filter change, solenoid replacement, or transmission rebuild.
  • Cost: $500 - $2500+

Suspension

Standard Chassis

Worn Control Arm Bushings

  • Symptoms: Clunking noises over bumps, vague steering feel, uneven tire wear.
  • Solution: Replacement of front or rear control arms and bushings.
  • Cost: $400 - $700

Leaking Struts/Shocks

  • Symptoms: Bouncy ride, reduced handling, visible fluid leaks on shock bodies.
  • Solution: Replacement of worn struts or shocks.
  • Cost: $500 - $900

Electrical

General Electrical System

Infotainment System Glitches

  • Symptoms: Screen freezing, unresponsive touch controls, audio issues.
  • Solution: Software update, or replacement of the head unit.
  • Cost: $200 - $1200

Power Window/Lock Actuator Failure

  • Symptoms: Windows not rolling up/down, doors not locking/unlocking.
  • Solution: Replacement of faulty window motor or door lock actuator.
  • Cost: $200 - $400 per component

Exterior

Body Panels & Trim

No Major Issues

  • Symptoms: No widespread issues reported.
  • Solution: No widespread issues reported.
  • Cost: No widespread issues reported.

Interior

Cabin Features

No Major Issues

  • Symptoms: No widespread issues reported.
  • Solution: No widespread issues reported.
  • Cost: No widespread issues reported.

Summary Verdict

The 2009 INFINITI FX35 is a capable luxury crossover with a generally solid mechanical foundation, particularly its 3.5L V6 engine. The most commonly reported issues tend to revolve around the automatic transmission, specifically concerning shifting quality and potential solenoid failures, which can be costly to repair. Suspension components like control arm bushings and struts can also wear over time, leading to noise and handling degradation. Electrical gremlins, such as infotainment system glitches and power accessory failures, are not uncommon. While the exterior and interior generally hold up well, proactive maintenance, especially on the transmission and suspension, is recommended for long-term ownership.

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