2009 INFINITI M35

2009 INFINITI M35

Overview

The 2009 INFINITI M35 is a luxury sedan that offered a blend of performance, comfort, and technology. Generally, it is considered a reliable vehicle, especially for its class and era. Owners often praise its smooth ride, powerful V6 engine, and upscale interior. However, like any vehicle, it has specific areas that have seen more reports of issues than others. This analysis focuses on common technical reliability concerns, excluding routine maintenance and normal wear and tear, to provide a clear picture for potential owners or those maintaining the vehicle.

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Engine

3.5L V6 (VQ35HR)

Oil Leaks

• Symptoms: Visible oil spots under the vehicle, burning oil smell, low oil level.
• Solution: Replacement of valve cover gaskets, oil pan gasket, or crankshaft seals.
• Cost: $300 - $700

Coolant Leaks

• Symptoms: Overheating, visible coolant puddles, sweet smell, white smoke from exhaust.
• Solution: Replacement of radiator, hoses, water pump, or head gasket.
• Cost: $400 - $1200

Transmission

5-Speed Automatic (RE5R05A)

Harsh Shifting / Delayed Engagement

• Symptoms: Jerking during gear changes, difficulty engaging gears, transmission slipping.
• Solution: Transmission fluid flush and filter replacement, 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.
• Cost: $400 - $800

Electrical

General Electrical System

Infotainment System Glitches

• Symptoms: Screen freezing, unresponsive touch controls, audio issues.
• Solution: Software update, reset of the unit, or replacement of the head unit.
• Cost: $200 - $1000

Power Window/Lock Malfunctions

• Symptoms: Windows not rolling up/down, locks not engaging/disengaging.
• Solution: Replacement of window regulators, motors, or door lock actuators.
• Cost: $250 - $600

Exterior

Body and Trim

No Major Issues

• Symptoms: No widespread issues reported.
• Solution: No widespread issues reported.
• Cost: N/A

Interior

Cabin Components

Sunroof Drain Clogs

• Symptoms: Water leaks into the cabin, musty smell, potential electrical issues from water damage.
• Solution: Clearing of sunroof drain tubes.
• Cost: $100 - $250

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Summary Verdict

The 2009 INFINITI M35 is a solid choice for a used luxury sedan, offering good performance and comfort. While it doesn’t suffer from widespread catastrophic failures, potential buyers should be aware of common issues like oil and coolant leaks from the robust 3.5L V6, and occasional transmission quirks such as harsh shifting. Electrical gremlins, particularly with the infotainment system and power accessories, can also arise. Suspension components like control arm bushings may require attention as mileage increases. Overall, with diligent maintenance and addressing these specific potential issues, the M35 can provide a reliable and enjoyable ownership experience.