2006 INFINITI FX35

2006 INFINITI FX35

Overview

The 2006 INFINITI FX35, powered by its robust 3.5L V6 engine, generally offers a good balance of performance and luxury. While it’s a capable vehicle, like any model from this era, it has certain areas that have seen more attention from owners regarding reliability. This analysis focuses on common reported issues beyond routine maintenance, providing insights into potential problem areas for the engine, transmission, suspension, electrical systems, exterior, and interior components. Understanding these potential issues can help owners anticipate and address them proactively, ensuring the continued enjoyment and longevity of their FX35.

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Engine

3.5L VQ35DE V6

Oil Leaks (Valve Covers/Gaskets)

• Symptoms: Visible oil on the engine or under the vehicle, burning oil smell.
• Solution: Replacement of valve cover gaskets or other seals.
• Cost: $300 - $600

Variable Valve Timing (VVT) Actuator Issues

• Symptoms: Rattling noise from the engine, especially on startup; check engine light.
• Solution: Replacement of VVT actuators and potentially timing chain components.
• Cost: $800 - $1500

Transmission

5-Speed Automatic (RE5R05A)

Harsh Shifting / Delayed Engagement

• Symptoms: Jerky gear changes, difficulty engaging gears, slipping.
• Solution: Transmission fluid and filter change, solenoid replacement, or full transmission rebuild.
• Cost: $400 - $2500+

Suspension

Standard Chassis

Worn Control Arm Bushings

• Symptoms: Clunking noises over bumps, vague steering feel, uneven tire wear.
• Solution: Replacement of control arm bushings or entire control arms.
• Cost: $300 - $700

Leaking Struts/Shocks

• Symptoms: Bouncy ride, visible fluid leaks on shock/strut bodies.
• Solution: Replacement of struts or shocks.
• Cost: $400 - $800

Electrical

Body Control Module (BCM)

Intermittent Electrical Gremlins

• Symptoms: Malfunctioning power windows, door locks, interior lights, or dashboard warning lights.
• Solution: Diagnosis and potential reprogramming or replacement of the BCM.
• Cost: $500 - $1200

Alternator

Premature Failure

• Symptoms: Dimming headlights, battery warning light, dead battery.
• Solution: Replacement of the alternator.
• Cost: $400 - $700

Exterior

Body Panels & Trim

Paint Fading/Peeling (especially on roof and hood)

• Symptoms: Visible degradation of paint finish.
• Solution: Repainting affected areas.
• Cost: $500 - $2000+

Headlight Lens Hazing/Yellowing

• Symptoms: Reduced light output, poor visibility at night.
• Solution: Headlight restoration kit or replacement of headlight assemblies.
• Cost: $100 - $500

Interior

Infotainment System

Navigation System Malfunctions

• Symptoms: Screen freezing, unresponsiveness, incorrect map data.
• Solution: Software update or replacement of the head unit.
• Cost: $300 - $1500

Climate Control System

Blend Door Actuator Failure

• Symptoms: Inability to control temperature or airflow direction.
• Solution: Replacement of the blend door actuator.
• Cost: $200 - $500

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Summary Verdict

The 2006 INFINITI FX35 is a stylish and capable SUV, but potential buyers and current owners should be aware of common issues. The 3.5L V6 engine, while generally strong, can develop oil leaks and VVT actuator problems. The automatic transmission may exhibit harsh shifting. Suspension components like control arm bushings and struts are also noted for wear. Electrical gremlins, often linked to the BCM or alternator, can be frustrating. Exterior paint and headlight clarity can degrade over time. Interior issues tend to focus on the infotainment and climate control systems. Proactive maintenance and addressing these known issues can help maintain the FX35’s reliability.