The Best Years For Infiniti G35x And Some To Avoid

The Infiniti G35X, the all-wheel-drive variant of the popular G35 sedan, offers a compelling blend of performance, luxury, and practicality. However, like any vehicle, certain model years are more reliable and desirable than others. This guide will delve into the best and worst years for the G35X, providing essential information for prospective buyers and current owners.

Infiniti G35X: Model Year Reliability Overview

Detailed Explanations:

2003-2004: Early Models

These early G35X models are the oldest and, consequently, are more likely to have accumulated higher mileage and wear and tear. Potential issues include increased oil consumption, a common problem with the VQ35DE engine in its early iterations. Other areas to inspect carefully include suspension components, as they are prone to wear after years of use. While they can be budget-friendly options, a thorough pre-purchase inspection is crucial.

2005-2006: Improved Refinements

These model years saw some engine refinements aimed at reducing oil consumption, although it wasn't entirely eliminated. Valve cover gasket leaks are a relatively common issue, leading to oil seepage onto the exhaust manifold. Electrical quirks, such as issues with the window motors or climate control, have also been reported. While improvements over the 2003-2004 models, these years still require careful inspection.

2007: First Year of the 2nd Generation

The 2007 G35X marked the beginning of the second generation, featuring a refreshed design and interior. Generally, these models are more reliable than the first generation. However, it's important to check for potential transmission issues, particularly slipping or rough shifting. The redesigned interior also introduced new electrical systems, so ensure all features function correctly.

2008: A Sweet Spot for Reliability

The 2008 G35X is widely considered one of the most reliable years. It benefits from the improvements made in 2007 while having fewer reported issues. This year offers a good balance of performance, features, and reliability, making it a highly desirable option for buyers looking for a used G35X.

2009-2013: Minor Issues and AWD Maintenance

These later models generally maintain a good level of reliability. However, the infamous gallery gasket failure becomes a concern, especially in the later years. This gasket, located in the engine, can leak oil, leading to significant engine damage if left unattended. Regular maintenance of the all-wheel-drive system is crucial to ensure optimal performance and prevent costly repairs. Check for fluid leaks and ensure the system engages and disengages smoothly.

Common Issues and Considerations Across All Years:

• Oil Consumption: As mentioned earlier, oil consumption can be an issue, especially in earlier models. Regularly check the oil level and use the recommended oil type.
• Suspension Components: Bushings, ball joints, and shocks can wear out over time, leading to a rough ride and poor handling. Inspect these components for wear and tear.
• Rust: Depending on the region the vehicle was driven in, rust can be a concern. Check the undercarriage, wheel wells, and body panels for signs of corrosion.
• Electrical System: Electrical gremlins can occur in any car, so ensure all lights, windows, and accessories function correctly.
• AWD System Maintenance: Regular fluid changes are essential for the AWD system to function properly. Neglecting this maintenance can lead to expensive repairs.

Detailed Breakdown of Specific Components:

Engine (VQ35DE & VQ35HR):

• The VQ35DE (2003-2006) is a robust engine but prone to oil consumption. Regular oil changes with high-quality synthetic oil are crucial.
• The VQ35HR (2007-2008) and VQ37VHR (2009-2013) are more refined and powerful. However, the VQ37VHR is known for its gallery gasket issues.
• Listen for any unusual engine noises, such as knocking or ticking, which could indicate underlying problems.

Transmission (Automatic):

• The automatic transmission in the G35X is generally reliable, but regular fluid changes are essential.
• Slipping or rough shifting can indicate transmission problems.
• Check for any leaks around the transmission housing.

All-Wheel-Drive System (ATTESA E-TS):

• The ATTESA E-TS AWD system is generally reliable, but it requires regular maintenance.
• Fluid changes are crucial to prevent premature wear and tear.
• Listen for any unusual noises or vibrations from the system.

Suspension:

• The suspension components are prone to wear and tear over time.
• Inspect the bushings, ball joints, and shocks for wear and tear.
• Listen for any clunking or rattling noises from the suspension.

Brakes:

• Check the brake pads and rotors for wear and tear.
• Ensure the brake lines are in good condition and free from leaks.
• Listen for any squealing or grinding noises from the brakes.

Interior:

• Check the condition of the seats, carpets, and dashboard.
• Ensure all electrical components, such as the windows, locks, and climate control, function correctly.
• Look for any signs of water leaks or mold.

Exterior:

• Check the body panels for dents, scratches, and rust.
• Ensure all lights are functioning correctly.
• Inspect the tires for wear and tear.

Essential Buying Advice:

• Pre-Purchase Inspection: Before purchasing any used G35X, have it inspected by a qualified mechanic. This will help identify any potential problems before you buy.
• Maintenance Records: Review the vehicle's maintenance records to ensure it has been properly maintained.
• Test Drive: Take the vehicle for a test drive to assess its performance and handling.
• Negotiate: Don't be afraid to negotiate the price. Research comparable vehicles to determine a fair price.
• Consider a Warranty: If possible, consider purchasing a warranty to protect yourself from unexpected repairs.

Frequently Asked Questions:

What is the most common problem with the Infiniti G35X? Oil consumption is a common issue, particularly in earlier models. Regular oil checks are essential.

Is the Infiniti G35X reliable? Generally, yes, especially the 2008 model year. Regular maintenance is key to long-term reliability.

How often should I change the oil in my G35X? Follow the manufacturer's recommended oil change intervals, typically every 5,000-7,500 miles with synthetic oil.

What is the gallery gasket issue? It's a known problem in the later VQ37VHR engines (2009-2013) where the gasket leaks oil, potentially causing engine damage.

How much does it cost to replace the gallery gaskets? Expect to pay several thousand dollars for this repair, as it requires significant engine disassembly.

Is the AWD system reliable? Yes, but regular fluid changes are crucial to prevent premature wear and tear.

What should I look for when buying a used G35X? Check for oil leaks, suspension wear, rust, and ensure all electrical components are functioning correctly. A pre-purchase inspection is highly recommended.

Are parts expensive for the G35X? Parts are generally reasonably priced, but some specialized components can be more expensive.

Is the G35X a good car for winter driving? Yes, the all-wheel-drive system provides excellent traction in snowy and icy conditions.

How long will a G35X last? With proper maintenance, a G35X can last for 200,000 miles or more.

Conclusion:

The Infiniti G35X offers a compelling blend of performance and luxury, but choosing the right model year is crucial for long-term reliability. While the 2008 model year stands out as a particularly reliable option, careful inspection and maintenance are essential for any used G35X to ensure years of enjoyable driving.