The Infiniti M35, a mid-size luxury sedan, offered a blend of performance, comfort, and technology that appealed to discerning drivers. Navigating the used car market requires knowing which model years offer the most reliability and value, and which ones are best avoided. This guide provides a detailed overview to help you make an informed decision when considering an Infiniti M35.

Infiniti M35 Model Year Comparison Table

Model Year Key Features & Improvements Potential Issues & Considerations
2006 First year of the fourth-generation M35; Introduced VQ35DE 3.5L V6 engine; Available with RWD or AWD; Standard features include leather seats, sunroof, and Bose audio system. Potential oil consumption issues; Some reports of valve cover gasket leaks; Early models may have outdated navigation systems.
2007 Minor interior refinements; Improved navigation system; Addition of Intelligent Cruise Control as an option. Continued oil consumption issues in some vehicles; Potential for timing chain tensioner problems in higher mileage examples; Check for proper function of Intelligent Cruise Control.
2008 Revised front and rear fascias; Upgraded interior materials; Enhanced sound insulation; Introduction of the M35x Sport model with sport-tuned suspension. Oil consumption remains a concern; Potential for catalytic converter failure; Check for signs of suspension wear, especially on Sport models.
2009 Minor updates to the navigation system; Improved Bluetooth connectivity. Oil consumption still a potential issue; Check for proper function of the HVAC system; Inspect exhaust system for rust or damage.
2010 Final year of the fourth-generation M35; Limited changes from the 2009 model. Similar issues to previous years, including oil consumption and potential for catalytic converter problems; Thorough pre-purchase inspection is crucial.

Detailed Explanations

2006: First Year of the Fourth-Generation M35

The 2006 Infiniti M35 marked the introduction of the fourth generation, boasting a sleek design and a powerful VQ35DE 3.5L V6 engine. Available in both rear-wheel drive (RWD) and all-wheel drive (AWD) configurations, it offered a comfortable ride and a range of standard features like leather seats, a sunroof, and a premium Bose audio system. However, being the first year of a new generation, it's important to be aware of potential teething issues.

Potential Issues & Considerations (2006)

One of the most commonly reported issues with the 2006 M35 is oil consumption. Some owners have experienced higher-than-normal oil consumption rates, which can lead to engine damage if not monitored and addressed. Valve cover gasket leaks are another potential problem, which can result in oil drips and a burning smell. Additionally, the navigation system in the 2006 model may be considered outdated compared to newer systems.

2007: Minor Interior Refinements

The 2007 M35 saw minor improvements to the interior and an updated navigation system. The optional Intelligent Cruise Control was also introduced, enhancing driver convenience on long journeys. While generally similar to the 2006 model, these refinements aimed to improve the overall user experience.

Potential Issues & Considerations (2007)

The oil consumption issue persisted in some 2007 models. Another potential concern is the timing chain tensioner, which can wear out over time, especially in higher-mileage vehicles. If equipped with Intelligent Cruise Control, ensure it functions correctly during a test drive.

2008: Revised Front and Rear Fascias

The 2008 model year brought a facelift to the M35, with revised front and rear fascias, upgraded interior materials, and enhanced sound insulation. The M35x Sport model was also introduced, featuring a sport-tuned suspension for improved handling. These updates gave the M35 a more modern and refined appearance.

Potential Issues & Considerations (2008)

Oil consumption remained a recurring concern. Catalytic converter failure is another potential issue to watch out for, which can be expensive to repair. If considering the Sport model, pay close attention to the suspension condition, as it may be subject to more wear and tear due to its sport-tuned nature.

2009: Minor Updates to the Navigation System

The 2009 M35 received minor updates to the navigation system and improved Bluetooth connectivity. These enhancements focused on improving the car's technology features, making it more user-friendly.

Potential Issues & Considerations (2009)

The oil consumption issue was still present in some 2009 models. HVAC system malfunction and exhaust system rust are other potential problems. Inspect the HVAC system for proper cooling and heating, and check the exhaust system for any signs of rust or damage.

2010: Final Year of the Fourth-Generation M35

The 2010 M35 marked the final year of the fourth-generation model. There were limited changes from the 2009 model, making it essentially the same car.

Potential Issues & Considerations (2010)

Similar to previous years, the oil consumption issue and potential for catalytic converter problems remained concerns. A thorough pre-purchase inspection is crucial to identify any potential issues before buying a 2010 M35.

Frequently Asked Questions

Which Infiniti M35 year is the most reliable?

While all years have potential issues, the 2008 and 2009 models are generally considered slightly more reliable due to minor refinements and updates over the earlier years. However, a thorough inspection is always recommended.

Is oil consumption a common problem in the Infiniti M35?

Yes, oil consumption is a known issue in many Infiniti M35 models, particularly those from 2006-2010. Regularly checking and maintaining oil levels is essential.

What should I look for when buying a used Infiniti M35?

Check for oil leaks, catalytic converter health, HVAC functionality, suspension wear (especially on Sport models), and exhaust system rust. A pre-purchase inspection by a qualified mechanic is highly recommended.

Are Infiniti M35 parts expensive to repair?

Infiniti parts can be moderately expensive, but aftermarket options are available to help reduce costs. Regular maintenance can prevent costly repairs.

Is the Infiniti M35 a good car for long trips?

Yes, the Infiniti M35 offers a comfortable ride and a range of features that make it suitable for long trips, especially models equipped with Intelligent Cruise Control.

Conclusion

Choosing the best year for an Infiniti M35 depends on your individual needs and priorities. The 2008 and 2009 models offer a good balance of features and reliability, but all model years require a thorough inspection before purchase. Addressing the common issues, like oil consumption, can ensure a positive ownership experience with this luxurious and capable sedan.