The Infiniti M35h, a luxury hybrid sedan, offered a unique blend of performance and fuel efficiency. Understanding the nuances of each model year is crucial for prospective buyers looking to find a reliable and cost-effective vehicle. This guide will delve into the best and worst years of the M35h, providing insights to help you make an informed decision.
Infiniti M35h Model Year Comparison
| Model Year | Key Features and Considerations | Potential Issues and Recommendations |
|---|---|---|
| 2012 | First year of production; innovative hybrid system; luxurious interior; strong performance. | Potential for early adopter issues; check battery health; ensure all recalls have been addressed. |
| 2013 | Minor refinements over the 2012 model; improved infotainment system. | Monitor battery performance; inspect for any signs of hybrid system malfunction; regular maintenance is crucial. |
| 2014 | Last year of production; most refined version; potentially better reliability due to lessons learned. | Generally considered the most reliable year; still requires thorough inspection and maintenance history review; look for well-maintained examples. |
Detailed Explanations
2012: First Year of Production
The 2012 Infiniti M35h marked the debut of Infiniti's hybrid technology in a luxury sedan. It boasted a powerful 3.5-liter V6 engine paired with an electric motor, delivering impressive performance and fuel economy. Its luxurious interior and advanced features were also significant selling points. However, as the first year of production, it's susceptible to early adopter issues. Specifically, potential buyers should pay close attention to the hybrid battery's health and ensure all manufacturer recalls have been addressed.
2013: Minor Refinements
The 2013 Infiniti M35h benefited from minor refinements based on feedback from the initial 2012 model year. The infotainment system saw improvements, offering a slightly more user-friendly experience. While mechanically similar to the 2012, the 2013 model may have addressed some of the initial quirks. However, diligent monitoring of the battery performance and regular maintenance remain vital. Inspecting for any signs of hybrid system malfunction is also highly recommended before purchase.
2014: Last and Most Refined
The 2014 Infiniti M35h represented the culmination of Infiniti's efforts with this hybrid model. Being the final year of production, it potentially benefited from the lessons learned in the previous two years, leading to better reliability. It is generally considered the most reliable year of the M35h. Despite this, a thorough inspection, a review of the maintenance history, and a careful look at well-maintained examples are still crucial steps for potential buyers.
Potential Issues to Watch Out For (All Years)
Regardless of the model year, certain potential issues are common across the Infiniti M35h range:
- Hybrid Battery Health: The hybrid battery is a critical component and its degradation over time can significantly impact performance and fuel economy. Testing the battery's capacity and overall health is essential before purchasing a used M35h. Replacement can be expensive.
- Hybrid System Malfunctions: The complex hybrid system, including the electric motor, inverter, and control systems, can experience malfunctions. Look for warning lights on the dashboard and listen for unusual noises from the engine bay. A pre-purchase inspection by a qualified mechanic specializing in hybrids is highly recommended.
- Transmission Issues: Some owners have reported issues with the transmission, including rough shifting or slipping. A thorough test drive, paying close attention to the transmission's behavior, is crucial.
- Brake System: The regenerative braking system, which is integral to the hybrid system, can sometimes experience problems. Ensure the brakes are functioning properly and that there are no unusual noises during braking.
- Infotainment System Glitches: While the 2013 model saw improvements, the infotainment system in all M35h models can occasionally experience glitches or become unresponsive.
Why Choose an Infiniti M35h?
Despite potential issues, the Infiniti M35h offers several compelling advantages:
- Fuel Efficiency: Its hybrid powertrain delivers significantly better fuel economy than a traditional gasoline-powered luxury sedan of similar size and performance.
- Performance: The combination of the V6 engine and electric motor provides strong acceleration and a responsive driving experience.
- Luxury and Comfort: The M35h offers a luxurious interior with comfortable seating, high-quality materials, and a range of features.
- Unique Driving Experience: The seamless integration of the hybrid system provides a smooth and quiet driving experience, especially in electric-only mode.
- Value Proposition: Used M35h models can represent a significant value compared to newer hybrid luxury sedans.
Tips for Buying a Used Infiniti M35h
Here are some essential tips to consider when shopping for a used Infiniti M35h:
- Thorough Inspection: Have a qualified mechanic specializing in hybrids perform a comprehensive inspection of the vehicle, including the hybrid battery, engine, transmission, and brake system.
- Maintenance History: Review the vehicle's maintenance history to ensure it has been properly maintained and that any necessary repairs have been performed. Look for consistent oil changes, fluid flushes, and other routine maintenance.
- Battery Health Check: Request a battery health check to assess the battery's capacity and overall condition. This can often be done by a dealership or a specialized hybrid repair shop.
- Test Drive: Take the vehicle for an extended test drive in various driving conditions, including city streets and highways. Pay attention to the engine's performance, transmission smoothness, brake responsiveness, and any unusual noises.
- Check for Recalls: Verify that all applicable recalls have been addressed by checking the vehicle's VIN on the National Highway Traffic Safety Administration (NHTSA) website.
- Negotiate the Price: Be prepared to negotiate the price based on the vehicle's condition, mileage, and any potential issues identified during the inspection.
- Consider a Warranty: If possible, consider purchasing an extended warranty that covers the hybrid components, such as the battery and electric motor.
Frequently Asked Questions
Which year of the Infiniti M35h is the most reliable? The 2014 model year is generally considered the most reliable due to being the last year of production and incorporating improvements based on previous years' feedback.
How long does the hybrid battery last in an Infiniti M35h? Hybrid battery lifespan varies but typically lasts between 8-10 years or 100,000-150,000 miles, depending on driving habits and maintenance.
What is the average fuel economy of the Infiniti M35h? The M35h is rated at approximately 27 mpg city and 32 mpg highway, though real-world figures may vary.
Is it expensive to maintain an Infiniti M35h? Maintenance costs can be higher than non-hybrid vehicles due to the specialized hybrid components, but regular maintenance can help prevent costly repairs.
What are the common problems with the Infiniti M35h? Common problems include hybrid battery degradation, hybrid system malfunctions, and occasional transmission issues.
Conclusion
Choosing the right year of the Infiniti M35h can significantly impact your ownership experience. While the 2014 model year generally offers the best reliability, careful inspection and maintenance are crucial for any used vehicle. By considering the potential issues and following the tips outlined in this guide, you can make an informed decision and potentially find a well-maintained M35h that provides years of enjoyable and efficient driving. Prioritize a thorough pre-purchase inspection by a qualified mechanic specializing in hybrids to minimize potential risks.