Buying a used luxury car can be tempting, especially when the price is much lower than a new model. Infiniti, the luxury arm of Nissan, has attracted many drivers with its stylish designs, comfortable rides, and advanced features. However, not every Infiniti model year gives you the best value or reliability.
Some years are known for expensive repairs, frequent breakdowns, or poor resale value. If you’re thinking about buying a used Infiniti, it’s smart to know which years to avoid—and why.
This guide will help you understand the Infiniti years to avoid, the main problems with these models, and what to look for instead. Whether you’re searching for a reliable SUV or a sporty sedan, this article will give you clear, practical advice to make a smart choice.
Plus, you’ll find helpful tables, real examples, and answers to common questions buyers have when shopping for a used Infiniti.
Understanding Infiniti’s History And Reliability
Infiniti began selling cars in the US in 1989, aiming to compete with brands like Lexus and Acura. Over the years, Infiniti has produced many popular cars and SUVs, such as the Infiniti Q50, QX60, and the older G35. While many models are well built, some years stand out for having more problems than others.
Infiniti’s reliability ratings have changed over time. For example, some early 2000s models had strong engines but weak transmissions. Later, issues with technology, fuel systems, and build quality appeared in certain models. Understanding these patterns can help you avoid costly mistakes.
Why Some Infiniti Years Should Be Avoided
Not all used Infinitis have the same risk. Some years are known for major engine failures, transmission problems, or electrical issues. These can lead to expensive repairs—sometimes costing thousands of dollars. Other years may have more recalls or poor safety ratings. Here are a few main reasons why certain Infiniti years are best avoided:
- Frequent mechanical failures (engine, transmission, suspension)
- High repair costs due to luxury parts and labor
- Unreliable electronics and infotainment systems
- Safety recalls affecting airbags, brakes, or steering
- Rapid depreciation and low resale value
Infiniti Models And Years To Avoid
Let’s break down the Infiniti models with the most problematic years, focusing on the main issues and what makes these years stand out.
Infiniti Qx56 (2004–2006, 2011–2013)
The Infiniti QX56 is a full-size luxury SUV. While it offers a powerful V8 and a spacious interior, some years are plagued with serious problems.
2004–2006 Qx56: These early models have frequent brake system failures and transmission issues. Many owners report a “brake judder” problem, which can lead to unsafe driving. Electrical problems, such as power windows and navigation, are also common.
2011–2013 Qx56: These years marked a new generation but came with timing chain failures and engine problems. Repairs can cost over $3,000. Air suspension failures and faulty fuel gauges are also widely reported.
Infiniti Qx60 (2014, 2017–2018)
The QX60 is a popular midsize luxury SUV, but not all years are equal.
2014 Qx60: Owners often complain about the CVT (continuously variable transmission) failing at low mileage. This can cost between $4,000 and $6,000 to replace. Electrical glitches, especially with the infotainment system, are another headache.
2017–2018 Qx60: Transmission shudder and jerky gear changes are widespread. Some drivers also report issues with the ADAS (advanced driver-assistance systems), such as blind spot monitoring and automatic emergency braking not working properly.
Infiniti Q50 (2014–2015, 2017)
The Q50 is a sporty sedan with advanced technology, but some years have more trouble than others.
2014–2015 Q50: Infotainment system freezes and steering system glitches are major concerns. The early “steer-by-wire” system sometimes fails, causing loss of steering feel or response.
2017 Q50: Problems with the turbocharged engine and fuel system have been reported. Some cars experience rough idling or stalling, which can be dangerous in traffic.
Infiniti Qx70 (2014–2015)
The QX70 has a stylish design, but these years have weak points.
Frequent electrical failures, including dashboard warning lights and sensor malfunctions, cause frustration. Some owners also complain about transmission hesitation and noisy suspension.
Infiniti G35/g37 (2003, 2007–2008, 2011–2012)
The G-series is loved for its sporty handling, but certain years are less reliable.
2003 G35: Timing chain tensioner failures are common, leading to engine damage if not fixed quickly.
2007–2008 G35/g37: These years face issues with airbag sensors and electronics, leading to multiple recalls.
2011–2012 G37: Problems with the automatic transmission and rattling noises from the engine can appear early, even before 60,000 miles.
Infiniti M35/m45/q70 (2006, 2011)
The M-series (later called Q70) targets the midsize luxury sedan market.
2006 M35/m45: Known for timing chain issues and electrical problems, especially with the navigation and stereo.
2011 M37/q70: The engine may develop oil consumption problems and noisy valve trains, leading to expensive repairs.
Infiniti Model Years To Avoid: Quick Reference Table
To help you compare problem years at a glance, here’s a summary:
| Model | Years to Avoid | Main Problems |
|---|---|---|
| QX56 | 2004–2006, 2011–2013 | Brakes, engine, suspension, electrical |
| QX60 | 2014, 2017–2018 | Transmission, electronics, ADAS |
| Q50 | 2014–2015, 2017 | Infotainment, steering, engine |
| QX70 | 2014–2015 | Electrical, transmission, suspension |
| G35/G37 | 2003, 2007–2008, 2011–2012 | Timing chain, airbags, electronics, transmission |
| M35/M45/Q70 | 2006, 2011 | Timing chain, oil consumption, electronics |
Common Issues In Infiniti Years To Avoid
Let’s look deeper at the main types of problems that make these Infiniti years risky for buyers.
Transmission Failures
The CVT transmissions in many Infiniti SUVs, especially the QX60, are a weak point. Owners report sudden loss of power, slipping gears, and rough shifting. Repairs or replacements are costly and sometimes need to be done more than once.
Engine Problems
Some Infiniti engines have timing chain problems. If the chain slips or breaks, the engine can be destroyed. Other models have issues with excessive oil consumption or valve noise, which can shorten engine life.
Electrical And Infotainment Glitches
Luxury cars have more electronics, but in some Infiniti years, the infotainment system freezes, navigation fails, or dashboard lights come on for no reason. These issues are hard to diagnose and expensive to fix.
Suspension And Brakes
Full-size SUVs like the QX56 are known for air suspension failures and brake system issues. Both can make the car unsafe and uncomfortable to drive.
Safety Recalls
Some years have more safety recalls, especially for airbags, sensors, and braking. A car with many recalls can be frustrating to own and may have lower resale value.
How To Spot A Problem Infiniti
Buying a used Infiniti can still be a good idea if you avoid the risky years and check the car’s history. Here’s how to reduce your risk:
- Check the VIN: Use services like Carfax or AutoCheck to see if the car has had major repairs or accidents.
- Review maintenance records: A well-maintained car is less likely to have serious problems.
- Look for recalls: See if all recalls have been fixed. You can check by entering the VIN on the NHTSA website.
- Get a pre-purchase inspection: Have a trusted mechanic check the car, especially the transmission, engine, and electronics.
- Drive the car: Listen for unusual noises, check that all electronics work, and make sure the transmission shifts smoothly.
Infiniti Years With Fewer Problems
While this article focuses on the years to avoid, it’s helpful to know which years are considered more reliable. Here’s a quick comparison:
| Model | Better Years | Why Better? |
|---|---|---|
| QX56/QX80 | 2014–2017 | Upgraded engine, improved suspension, fewer recalls |
| QX60 | 2015–2016, 2019+ | CVT updates, better electronics |
| Q50 | 2018–2020 | Improved infotainment, more reliable turbo engines |
| G37 | 2009–2010 | Strong V6, fewer electronic issues |
These years still need careful inspection, but they are less likely to have the expensive problems found in the years to avoid.
Real Owner Experiences
Many Infiniti owners have shared their stories online. For example, a 2014 QX60 owner reported their CVT failed at just 60,000 miles, and the repair cost was over $5,000. Another Q50 driver from 2015 described constant infotainment issues, with the screen freezing and Bluetooth not connecting, leading to many dealer visits but no permanent fix.
It’s not just about the money. Some owners say the stress of unexpected breakdowns and time spent at the mechanic makes them wish they had chosen a different model year. These stories highlight the importance of doing your research before buying.
Infiniti Vs. Other Luxury Brands: Reliability Comparison
How does Infiniti compare with other luxury carmakers like Lexus, Acura, or BMW? Let’s look at some recent reliability rankings:
| Brand | 2023 Reliability Rank* | Common Problems |
|---|---|---|
| Lexus | 1 | Few, mostly minor electronics |
| Acura | 3 | Minor transmission, infotainment |
| Infiniti | 12 | Transmission, engine, electronics |
| BMW | 15 | Electrical, turbo engine, oil leaks |
*Based on Consumer Reports and other industry surveys.
This shows that Infiniti is not at the top for reliability, but it’s also not the worst. Knowing which years to avoid can help you find a good used Infiniti without as much risk.
Two Non-obvious Insights For Infiniti Buyers
1. Software Updates Can Matter As Much As Hardware
Many Infiniti electronics and transmission issues are improved with dealer software updates. Before buying, check with the dealer if the car has the latest updates. This can solve or prevent problems that earlier owners faced.
2. Premium Fuel And Maintenance Impact Longevity
Infiniti engines are designed for premium gasoline. Using regular fuel, or skipping maintenance (like transmission fluid changes), can cause problems sooner. Ask the seller about their fuel and service habits—this is often overlooked but makes a big difference.
What To Do If You Already Own A Risky Infiniti Year
If you own one of the Infiniti years to avoid, don’t panic. Here are steps to protect your investment:
- Stay on top of maintenance: Follow the service schedule, especially for oil and transmission fluid.
- Get recalls fixed: These are usually free at a dealer.
- Consider an extended warranty: If expensive parts like the transmission are not covered, a warranty can be worth it.
- Fix small problems early: Don’t ignore warning lights or strange noises—early repairs are often cheaper.
When To Walk Away
Sometimes, the best decision is to skip a used Infiniti that’s from a risky year, even if the price is low. Walk away if:
- The car has a salvage title or accident history.
- There are lots of open recalls.
- The seller can’t show maintenance records.
- The test drive reveals major issues.
There are always better options if you’re patient.
Frequently Asked Questions
What Are The Worst Years For The Infiniti Qx60?
The 2014, 2017, and 2018 Infiniti QX60 are often listed as the worst years due to CVT transmission failures and electronics problems. These issues can lead to expensive repairs.
Is The Infiniti Q50 A Reliable Car?
The Q50 is reliable in newer years (2018 and later), but 2014–2015 and 2017 models have many complaints about the infotainment system, steering, and engine. Always check the car’s history and get a pre-purchase inspection.
How Expensive Is It To Fix Infiniti Transmission Problems?
Transmission repairs, especially for CVT models like the QX60, can cost between $4,000 and $6,000. Even regular automatic transmission repairs are often over $2,500 due to the cost of luxury parts and labor.
Does Infiniti Have More Recalls Than Other Brands?
Infiniti has an average number of recalls compared to other luxury brands. However, some models and years, like the 2007–2008 G35/G37, have more recalls for airbags and electronics. You can check recalls for your car on the NHTSA website.
What Infiniti Models Are The Most Reliable?
The Infiniti QX80 (2014–2017), QX60 (2019 and newer), and G37 (2009–2010) are generally considered reliable, with fewer major problems and better owner satisfaction.
Choosing a used Infiniti can bring you luxury and comfort, but only if you pick the right model year. By knowing which Infiniti years to avoid, understanding the main problems, and following smart buying tips, you can enjoy your car without unexpected headaches.
Always do your research, get a professional inspection, and never rush your decision. An informed buyer is a happy driver.