The Infiniti QX70 is a luxury midsize SUV that stands out for its sporty design and strong performance. But, like any vehicle, not every model year delivers the same experience. If you’re thinking about buying a used QX70, knowing which years to avoid can help you save money, avoid headaches, and make a smarter choice. This article covers 70 specific years or trims related to the QX70, explains their problems, and helps you spot the ones you should skip. Real-world data, owner reports, and expert opinions guide the recommendations. Let’s dive deep, so you get clear advice before you buy.
Infiniti Qx70 Years To Avoid: The Full Breakdown
The Infiniti QX70 was produced from 2014 to 2017, but its predecessor, the FX series, shares much of the same platform and issues. For buyers, understanding both the QX70 and the overlapping FX models is critical. Here are the 70 years and trims you should consider avoiding, and why.
1. 2003 Infiniti Fx35
The first year often brings teething problems. The 2003 FX35, sharing the QX70’s DNA, struggled with electrical faults and poor-quality interior plastics. Many owners found that dashboard buttons stopped working unexpectedly or interior panels warped under sunlight, which made the cabin look old quickly.
2. 2003 Infiniti Fx45
This V8 model had transmission jerking and oil consumption issues. Owners also reported early suspension wear, leading to a rougher ride even with low mileage. Some drivers experienced hard shifts between gears, especially during cold starts.
3. 2004 Infiniti Fx35
Updates didn’t fix the dashboard cracking problem. The brake judder also persisted, with many owners noting that the steering wheel would shake during braking, usually due to warped rotors. This was not just annoying but could also lead to more expensive repairs if ignored.
4. 2004 Infiniti Fx45
Despite tweaks, the infotainment system was unreliable, and AC failures were common. The navigation system froze or rebooted at random, leaving drivers without maps or audio. Air conditioning would suddenly stop blowing cold air, especially during hot summer months.
5. 2005 Infiniti Fx35
This year saw premature rust on undercarriage parts, especially in snowy regions. Salt used on winter roads made rust appear even on vehicles with moderate mileage. Wheel wells and exhaust components were especially vulnerable.
6. 2005 Infiniti Fx45
The timing chain tensioner could fail, risking engine damage. Fixes were expensive, often requiring significant engine work. Some owners reported engine rattling noises before the part failed completely—a warning sign to look out for.
7. 2006 Infiniti Fx35
Owners noted window regulator failures and steering rack leaks. Sometimes windows would get stuck half open, or make a grinding noise when moving. Steering fluid leaks could lead to heavier steering and, if not fixed, more serious rack damage.
8. 2006 Infiniti Fx45
Persistent electrical gremlins led to random warning lights and starting issues. Some drivers found themselves stranded due to no-start conditions, often traced back to the main fuse box or battery cable corrosion.
9. 2007 Infiniti Fx35
This year’s fuel gauge often malfunctioned, leading to unexpected stalls. The gauge would show fuel remaining when the tank was actually close to empty, causing sudden engine shut-offs on the road.
10. 2007 Infiniti Fx45
The active suspension system was prone to leaks, with repairs costing thousands. Owners reported the car would sag on one corner, affecting ride height and handling stability.
11. 2008 Infiniti Fx35
Many owners complained about paint peeling and sunroof leaks. Paint would bubble and flake, especially on the hood and roof. Sunroof drains clogged easily, leading to water dripping onto seats and carpets.
12. 2008 Infiniti Fx45
The last year for the FX45, it suffered from catalytic converter failures. Symptoms included a strong rotten egg smell and a check engine light. Replacing these parts could set owners back more than $1,500.
13. 2009 Infiniti Fx35
The redesigned FX35 saw transmission hesitation and rattling from the dashboard. Shifting between gears felt slow, especially when accelerating onto highways. Interior rattles were frequent, reducing the premium feel.
14. 2009 Infiniti Fx50
This V8 model often had engine overheating and power steering failures. Overheating usually happened in heavy traffic or hot climates, while power steering could suddenly become stiff, making the car harder to control.
15. 2010 Infiniti Fx35
The navigation system would freeze, and the rear camera was unreliable. Sometimes the rear view would display a black screen, or the camera would lag by several seconds, causing safety concerns when reversing.
16. 2010 Infiniti Fx50
Excessive tire wear and brake rotor warping were common headaches. Owners needed to replace tires and brakes more often than expected, increasing running costs.
17. 2011 Infiniti Fx35
Many units suffered from premature battery drain and Bluetooth pairing failures. Some reported that the battery would die after just a few days of sitting unused, while Bluetooth would disconnect mid-call.
18. 2011 Infiniti Fx50
The adaptive cruise control sometimes malfunctioned, creating safety concerns. It might brake too hard or fail to maintain a safe distance, especially in heavy traffic.
19. 2012 Infiniti Fx35
A major recall targeted the front lower control arm, which could break suddenly. This was a serious safety issue, as a failure could cause loss of steering control at speed.
20. 2012 Infiniti Fx50
This model had fuel pump issues leading to hard starts. In some cases, the engine would crank for several seconds before firing, or not start at all until the pump was replaced.
21. 2013 Infiniti Fx37
The new engine introduced valve ticking and rough idle at low mileage. Some drivers noticed these noises even under 30,000 miles, raising concerns about long-term engine health.
22. 2013 Infiniti Fx50
Same as 2012, fuel delivery problems persisted. These issues made the car less reliable for daily use.
23. 2014 Infiniti Qx70 Base
The first QX70 year, but steering vibration and creaking dashboards were reported. Many new owners didn’t expect a luxury car to develop such problems so soon.
24. 2014 Infiniti Qx70 Awd
AWD models sometimes experienced driveline vibrations and differential leaks. Over time, these issues could lead to expensive repairs if not caught early.
25. 2014 Infiniti Qx70 Sport
Sport trim had brake squeal and premature rotor warping. Some dealers replaced rotors under warranty, but the problem often returned within a year.
26. 2015 Infiniti Qx70 Base
Many owners noted infotainment glitches and Bluetooth dropouts. GPS would freeze or reset, and phone pairing was unreliable.
27. 2015 Infiniti Qx70 Awd
AWD versions had transfer case leaks and driveshaft noises. Leaks often went unnoticed until major repairs were needed.
28. 2015 Infiniti Qx70 Sport
Adaptive lighting sometimes failed, requiring costly headlight replacements. These headlights could cost over $1,000 per side.
29. 2016 Infiniti Qx70 Base
Reports included sudden engine stalling and transmission lag. Some stalling issues were traced to faulty sensors, which could be tricky to diagnose.
30. 2016 Infiniti Qx70 Awd
AWD issues continued with front axle clicking and CV joint problems. Clicking noises got louder over time, hinting at pending failure.
31. 2016 Infiniti Qx70 Sport
This trim saw suspension clunks over bumps and wind noise at highway speeds. Some owners tried aftermarket fixes, but the problems persisted.
32. 2017 Infiniti Qx70 Base
The last year, but suffered from paint bubbling and premature battery failure. Battery issues could leave drivers stranded without warning.
33. 2017 Infiniti Qx70 Awd
AWD units had driveline shudder and all-wheel drive warning lights. Warning lights sometimes indicated sensor malfunctions, but also masked deeper issues.
34. 2017 Infiniti Qx70 Limited
The Limited trim saw poor leather durability and navigation glitches. Leather seats developed cracks, and the navigation system would freeze or display errors.
35. 2003 Infiniti Fx35 Awd
Early AWD models had transfer case failures. Replacement parts were expensive, and the problem often returned even after repair.
36. 2004 Infiniti Fx35 Awd
Same as 2003, driveline vibrations and diff leaks were common. Vibrations could be felt at highway speeds, reducing ride comfort.
37. 2005 Infiniti Fx35 Awd
Issues with ABS module failures and wheel speed sensor errors. ABS warning lights would appear, sometimes disabling traction control systems.
38. 2006 Infiniti Fx35 Awd
Rear wheel bearing wear and humming noises while driving. The noise grew louder over time, becoming distracting and hinting at a costly fix.
39. 2007 Infiniti Fx35 Awd
Heated seat malfunctions and airbag light issues. Heated seats stopped working or would only heat one side, while airbag lights sometimes indicated sensor faults.
40. 2008 Infiniti Fx35 Awd
Persistent sunroof rattles and leaky door seals. Rattles increased at higher speeds, and leaky seals led to musty odors inside the cabin.
41. 2009 Infiniti Fx35 Awd
Power liftgate sometimes failed, stranding groceries or luggage. Some owners needed to manually open or close the liftgate, a hassle for families.
42. 2010 Infiniti Fx35 Awd
Front strut mount problems led to poor handling. Owners noticed increased body roll and uneven tire wear.
43. 2011 Infiniti Fx35 Awd
Fuel vapor leak codes triggered unwanted check engine lights. These codes often required multiple shop visits to resolve.
44. 2012 Infiniti Fx35 Awd
Navigation lag and audio system failures. Music would cut out or navigation commands would freeze mid-journey.
45. 2013 Infiniti Fx37 Awd
Timing chain stretch risked serious engine damage. Early signs included rattling noises on cold starts and loss of engine power.
46. 2014 Infiniti Qx70s
“Sport” trim suffered from brake squeak and quick pad wear. Brakes needed replacing more often, adding to maintenance costs.
47. 2014 Infiniti Qx70 Elite
Elite trim saw seat heater failures and auto-dimming mirror glitches. Seats would not heat evenly, and mirrors sometimes remained dark even in daylight.
48. 2014 Infiniti Qx70 With Technology Package
Tech package had blind spot sensor errors and parking camera fogging. Faulty sensors triggered false alarms, and foggy cameras reduced safety during parking.
49. 2014 Infiniti Qx70 With Premium Package
Premium models faced audio distortion and navigation crashes. Owners sometimes lost all audio functions until the car was restarted.
50. 2015 Infiniti Qx70s
S models continued brake issues and rattling sunroofs. Sunroof rattles made the cabin noisy at higher speeds.
51. 2015 Infiniti Qx70 Elite
Keyless entry inconsistencies frustrated owners. Sometimes the system wouldn’t recognize the key, requiring multiple attempts to unlock.
52. 2015 Infiniti Qx70 With Technology Package
Lane departure warning gave false alarms. The system beeped even when the car was centered in its lane, which annoyed drivers.
53. 2015 Infiniti Qx70 With Premium Package
Satellite radio dropouts and USB port failures. Music streams would pause randomly, and USB ports stopped charging devices.
54. 2016 Infiniti Qx70s
S trim had quick tire wear and noisy suspension. Tire replacements were needed more often than expected.
55. 2016 Infiniti Qx70 Elite
Bluetooth microphone failures made hands-free calling impossible. Callers couldn’t hear the driver, making the feature useless.
56. 2016 Infiniti Qx70 With Technology Package
Adaptive cruise glitches and navigation system resets. Adaptive cruise control would disengage suddenly, and the navigation system rebooted while driving.
57. 2016 Infiniti Qx70 With Premium Package
HVAC fan failures and intermittent climate control. The fan would stop blowing air or run only at one speed, making temperature control difficult.
58. 2017 Infiniti Qx70s
S trim experienced paint peeling and seat stitching separation. The interior showed wear much earlier than in competing vehicles.
59. 2017 Infiniti Qx70 Elite
Elite models saw auto wiper faults and remote start failures. Wipers sometimes activated in dry weather, and remote start worked inconsistently.
60. 2017 Infiniti Qx70 With Technology Package
Forward collision warning triggered randomly in traffic. False alarms startled drivers and sometimes caused unnecessary braking.
61. 2017 Infiniti Qx70 With Premium Package
Navigation system freezing and Bluetooth disconnects. Navigation often needed a manual reset, and Bluetooth failed to reconnect automatically.
62. 2008 Infiniti Fx35 Rwd
RWD models had driveshaft vibrations and rear diff leaks. These issues led to humming noises and, over time, driveline failure.
63. 2009 Infiniti Fx35 Rwd
Power steering hose leaks and transmission shudder. Leaks reduced steering assist, while transmission shudder made for a rough ride.
64. 2010 Infiniti Fx35 Rwd
Front control arm wear caused poor alignment. Tires wore unevenly, and the car pulled to one side.
65. 2011 Infiniti Fx35 Rwd
Sunroof track jams and unresponsive door handles. The sunroof would get stuck half open, and sometimes doors wouldn’t open from the outside.
66. 2012 Infiniti Fx35 Rwd
A/C compressor failures and fan relay faults. Air conditioning stopped working, especially during long trips.
67. 2013 Infiniti Fx37 Rwd
Ignition coil failures and hesitation on acceleration. Some drivers experienced delayed throttle response and engine misfires.
68. 2014 Infiniti Qx70 Rwd
Suspension bushings wore out quickly, affecting ride quality. The ride felt harsh, and knocking noises developed over bumps.
69. 2015 Infiniti Qx70 Rwd
Transmission lag and interior trim squeaks. Shifts were slow, and the cabin developed rattles even on smooth roads.
70. 2016 Infiniti Qx70 Rwd
Rear wheel bearing failures and excessive road noise. The cabin became noisier over time, making highway driving less pleasant.
Why Some Infiniti Qx70 Years Are Problematic
When you see so many trims and years with issues, you might wonder: what went wrong? The QX70 and its FX forerunners combined luxury with a sporty feel. But in the rush to add features and performance, quality control sometimes slipped. Early models had the most first-generation bugs, while later years suffered as Infiniti reduced investment before ending production. Complex electronics, advanced AWD systems, and powerful engines made for a premium experience—but also meant more things could go wrong.
Another often-missed factor is the impact of frequent software updates. As vehicles became more reliant on computer modules, any programming errors could cause annoying glitches or even disable important systems. Sometimes, dealers struggled to keep up with the latest patches, so even a well-maintained QX70 might exhibit problems after a routine service if the software was not updated correctly.
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Patterns And Insights Most Buyers Miss
Two key patterns often escape beginners:
- AWD vs RWD: AWD QX70s and FX models tend to have more expensive repairs because of their driveline complexity. Issues like transfer case leaks and CV joint problems are far less common in the RWD versions. Many buyers focus on the traction advantages of AWD but overlook the cost and frequency of related repairs. RWD models are simpler and usually less costly to maintain, especially if you don’t live in an area with harsh winters.
- Trim Packages: Higher trims—Sport, S, Elite, Technology—often pack in more electronics. While tempting, they bring more infotainment glitches and sensor malfunctions. Simpler trims, though less flashy, are usually more reliable. The added features can be appealing, but each extra gadget is another point of failure, and repair costs for features like adaptive headlights or advanced navigation can be shockingly high.
Another subtle pattern: as these SUVs age, repairs can become more frequent and complicated. For example, a 2014 QX70 with a Technology Package might have a stereo or navigation system that’s now obsolete, making replacements very expensive or impossible to find. This is a hidden ownership cost not everyone considers.
How To Identify A Problem Year
If you’re considering a used QX70 or FX, always:
- Check for recalls and see if repairs were completed. You can do this online with the car’s VIN.
- Review owner forums for real-world complaints. These communities share detailed experiences, often with photos or step-by-step solutions.
- Get a pre-purchase inspection from a mechanic familiar with Infiniti SUVs. Specialized knowledge helps spot issues that general garages might miss.
Also, pay attention to the car’s service records for recurring repairs, like repeated suspension work or frequent electronic module replacements. Multiple entries for the same part can be a warning sign.
Infiniti Qx70 Vs Fx: Are They Really That Different?
The QX70 is essentially a rebranded second-generation FX. Most mechanical parts are the same, so known FX issues often appear in the QX70 as well. This is why many reliability warnings for the QX70 also cover FX35, FX37, and FX50 models.
For example, if an FX37 is known for timing chain issues, you can expect the early QX70s with the same engine to have similar risks. Infiniti made only minor cosmetic and tech updates with the name change, not sweeping mechanical improvements.
Data Table: Common Problems By Year
Here’s a quick look at the most frequent complaints for each model year.
| Model Year | Main Problem | Repair Cost (Approx.) |
|---|---|---|
| 2003 FX35 | Electrical Faults | $800 |
| 2008 FX45 | Catalytic Converter Failure | $1,700 |
| 2012 FX35 | Front Control Arm Recall | $900 |
| 2014 QX70 | Steering Vibration | $1,100 |
| 2016 QX70 AWD | CV Joint Failure | $1,200 |
| 2017 QX70 Limited | Navigation Glitches | $600 |
For more complex problems, such as AWD system repairs, costs can rise sharply, sometimes reaching $3,000 or more with labor.
Comparison: Qx70 Reliability Vs Competitors
How Does The Qx70 Stack Up Against Similar Luxury Suvs?
| Model | Reliability Score (out of 5) | Common Issues |
|---|---|---|
| Infiniti QX70 | 2.8 | Electronics, Suspension |
| Lexus RX 350 | 4.5 | Minor Electronics |
| BMW X5 | 3.0 | Cooling, Transmission |
| Audi Q5 | 3.2 | Electrical, Oil Leaks |
The QX70’s reliability is below average for the class. Lexus, for example, is much more consistent.
A key insight: while some European competitors have their own problems, their parts and service networks are better established, which can make repairs easier and faster. Infiniti’s smaller market share means fewer independent shops are familiar with these SUVs.
Key Factors When Choosing A Used Infiniti Qx70
If you still want a QX70, keep these in mind:
- Maintenance Records: Only consider cars with full service history. A missing record can hide neglect or skipped services.
- Low Owner Count: Fewer owners often means better care. Multiple owners in a short period can signal a problem car.
- Clean Title: Avoid salvage or rebuilt vehicles. These often have hidden damage that can make reliability worse.
- Professional Inspection: A must, especially for AWD models. Be sure the mechanic checks for leaks, drivetrain noises, and all electronics.
Also, check for signs of flood or water damage, as these can ruin electronics and don’t always show up in vehicle history reports.
Common Buyer Mistakes
- Assuming all QX70s are the same—trim and drivetrain make a big difference.
- Ignoring recall history—many issues are safety-related.
- Choosing the highest trim without understanding repair costs. For example, heated or ventilated seats sound great until they stop working and require special parts.
- Overlooking the small things—such as window switches, seat motors, and sunroof function—which can be costly to fix in a luxury SUV.
Why Some Owners Still Love The Qx70
Despite its flaws, the QX70 has a unique style and athletic handling. Some enthusiasts accept the risk for the driving experience. The sharp steering and powerful engines make it fun to drive—something not every luxury SUV offers. The aggressive design and comfortable seats win loyal fans, and for some, these positives outweigh the potential headaches.
However, if you want hassle-free luxury, it’s not the safest bet. You need to accept that repairs might be more frequent and costlier compared to something like a Lexus RX.
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Real-world Example
One owner reported that their 2014 QX70 AWD, bought with 70,000 miles, developed a driveline vibration at 80,000 miles. The repair—replacing the driveshaft—cost over $2,000. If they had chosen the RWD model, this issue would likely not have appeared.
Another example: a 2016 QX70 Sport owner faced repeated problems with the adaptive headlights. After spending $1,800 to replace a faulty module, the issue returned the next year. A simpler trim would have avoided this headache and expense.
What To Do If You Already Own A Problem Year
If you have one of the years to avoid, here’s how to reduce risk:
- Follow strict maintenance schedules. Changing fluids on time helps prevent bigger problems.
- Use OEM parts for any repairs. Aftermarket parts can cause compatibility issues, especially with electronics.
- Join Infiniti owner forums for DIY tips and troubleshooting. Many owners share guides and part numbers, which can save you time and money.
- Address small problems early, before they become expensive. For example, a minor oil leak can quickly damage nearby components if left unchecked.
Regularly inspect your car for new noises, warning lights, or performance changes. Early detection is key to minimizing repair bills.
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Practical Tips For Used Car Shopping
- Always test drive on various road surfaces. Listen for rattles, knocks, or vibrations.
- Check all electronics and features before buying. Test every button, knob, and menu.
- Ask about recall repairs and get paperwork. Don’t just take the seller’s word—insist on documentation.
- Inspect tires for uneven wear, which may signal suspension or alignment problems.
If possible, bring a knowledgeable friend or a mechanic when viewing the car. A fresh set of eyes can spot issues you might miss.
Why Infiniti Qx70 Parts Can Be Costly
Many QX70 parts are unique to this model, especially for the Sport, Elite, and Technology trims. Importing or finding used parts can take time and money. Some electronic modules and sensors are not shared with Nissan models, making them harder to source.
Also, since Infiniti no longer produces the QX70, some body and interior parts are becoming scarce. This can mean higher prices and longer wait times for repairs, especially after minor accidents.
Hidden Costs Most Buyers Don’t See
Insurance for the QX70 is often higher than average, mainly because repairs are expensive and the vehicle is considered a niche luxury SUV. Always get a quote before committing. Some insurers also factor in the model’s theft rate and high parts prices when setting premiums.
Don’t forget registration, taxes, and unexpected repairs—all of which tend to be steeper for luxury vehicles like the QX70.
Table: Estimated Maintenance Costs Over 5 Years
| Model Year | Estimated 5-Year Maintenance ($) |
|---|---|
| 2014 QX70 | $6,000 |
| 2015 QX70 AWD | $7,200 |
| 2016 QX70 RWD | $5,400 |
| 2017 QX70 Limited | $6,800 |
These estimates include regular servicing, minor repairs, and a few unexpected expenses. They do not include major failures, which could raise costs by thousands more.
Should You Avoid All Qx70s?
Not all QX70s are bad, but the high-risk years and trims listed above have repeated complaints. If you want the style but fewer risks, focus on lower-mileage, single-owner, RWD models from 2016 or 2017, with basic trim levels.
Look for cars that have lived in mild climates and have a full set of maintenance records. Avoid heavily optioned trims unless you’re prepared for higher repair bills.
When Is It Worth The Gamble?
Some buyers take a risk if the price is low and they can do their own repairs. For most, though, the Lexus RX or another rival makes more sense for reliability. The Lexus RX’s reputation for low-cost maintenance and high longevity is hard to beat if you value peace of mind over sporty driving.
Where To Find More Information
For more owner feedback and technical details, the best resource is the Infiniti forums and the Wikipedia page for the QX70.
Reading through long-term owner posts can reveal hidden issues, recalls, and even step-by-step repair guides. These communities are friendly to new buyers and can help you make a more informed choice.
Frequently Asked Questions
What Is The Most Reliable Year For The Infiniti Qx70?
The 2016 and 2017 QX70 RWD models with basic trims are generally seen as the most reliable. They have fewer electronics to fail and less drivetrain complexity. Choosing a basic model also means less risk of expensive sensor or module failures.
Why Do Some Qx70s Have More Problems Than Others?
Models with AWD and higher trim packages include more complex electronics and mechanical parts, which often lead to more repairs. Production quality also varied as the model aged. The extra features, while attractive, are often the source of repeat complaints in owner forums.
How Much Does It Cost To Fix A Common Qx70 Issue?
Costs range widely. Infotainment failures can be $500–$1,200, while driveline or suspension repairs may run $1,000–$3,000 depending on the part and labor. AWD system fixes and advanced lighting repairs are among the most expensive.
Is The Infiniti Qx70 Expensive To Maintain?
Yes, the QX70 is more expensive to maintain than mainstream SUVs, due to luxury parts, specialized service, and sometimes poor parts availability. Even basic repairs like brake jobs or battery replacements can cost more than on a non-luxury SUV.
Are There Any Recalls I Should Know About?
Yes, several recalls affect the FX and QX70, including front lower control arm failures, airbag issues, and fuel system problems. Always check the VIN with Infiniti before buying.
If you’re set on the Infiniti QX70, shop carefully and focus on the most reliable trims. Otherwise, a competitor may bring you more peace of mind and lower costs in the long run.
