2008 Infiniti Fx35 problems

The Infiniti QX70, formerly called the Infiniti FX until 2013, is a compact luxury crossover SUV produced by the Nissan-owned Infiniti luxury vehicle brand between 2002 and 2017. The FX replaced the QX4 as Infiniti's mid-size SUV. It shares the same FM platform as the rear-wheel drive Nissan 370Z, and it "made no claims of climbing mountains." Rather, its aggressive shape promised style and quick handling. The similarly sized Nissan Murano is based on the same D platform as the front-wheel drive Nissan Altima. The FX does not have a Nissan-branded equivalent and is not sold in Japan.
The FX introduced its second generation for the 2009 model year as the FX35 and FX50.
First generation (S50; 2003)
The nameplates FX35 and FX45 refer to the two available engines. The FX35 is available in two drivetrains, the RWD and the AWD, which are both fitted to a dual overhead cam 3.5-liter 24-valve V6 VQ35DE gasoline engine, with aluminum-alloy block and heads, electronically controlled throttle system, and low-friction molybdenum-coated pistons that makes use of the continuous variable valve timing which in part optimizes the opening of intake valves. This is also coupled with an electronically controlled super-wide ratio five-speed automatic with a manumatic shift mode that includes the option of sequentially selected manual gearshifts and downshift rev-matching.
The AWD FX45 incorporates a 4.5 L (4,494 cc) 32-valve V8 DOHC VK45DE gasoline engine with four valves per cylinder, microfinished camshafts with aluminum-alloy block and heads, low-friction molybdenum-coated pistons, titanium intake and exhaust valves, modular cylinder heads, microfinished crankshaft, lightweight pistons, super-silent single stage cam drive chain, and a Continuously Variable Valve Timing Control System that optimizes opening of intake valves. Development began in 1999 under newly appointed CEO Carlos Ghosn's NRP. Design work was completed in rapid succession in 2000, for late 2002 production. Designed prior to that, earlier on in 2000 under the "Bionic Cheetah" theme, the 2001 Infiniti FX45 Concept was introduced at the NAIAS in January 2001. From mid-2001, a new concept based on the production design was developed and completed in late 2001. Sketches were first released in late November 2001. The second-generation 2002 FX45 Concept was introduced in January 2002 at the NAIAS '02 as a thinly-veiled production FX (S50) and planned production was announced for early 2003. In January 2003, the 2003 FX45 made its debut at the 2003 NAIAS and went on sale January 24, 2003.
In 2003 for the 2004 model, changes were the addition of a standard eight-way power front passenger seat that replaced the previous four-way design, the availability of aluminum roof rails and chrome-plated 20-inch wheels. Also new were a dark silver metallic finish for the 20-inch wheels (non-chrome-plated), the addition of a standard HVAC filter for all models and the addition of a new Snow-Mode function.
In September 2004 for the 2005 model year, the FX range received enhancements such as a lane departure warning (LDW) system that helps alert drivers to an unintended movement of the vehicle out of a designated traffic lane. Infiniti's system monitored the lane markings to alert passengers via an audible buzzer that the driver is drifting unintentionally. The LDW system, which utilizes a small camera, speed sensor, an indicator, and an audible warning buzzer, was offered on models. The 2005 Infiniti FX was the first passenger vehicle to offer a lane departure warning system in the United States market. In addition to LDW, the 2005 Infiniti FX range was now equipped with standard roof-mounted curtain supplemental curtain airbags with rollover protection for front and rear outboard seat occupants.
Other changes included the addition of a dark chrome grille, headlight, and clear taillight accents to the FX45 (also available as part of the V6 Sport Package on FX35 models), a new key fob design for the Infiniti Intelligent Key system, and two new exterior colors, Sapphire and Sheer Platinum. Interior changes included a new standard etched aluminum trim.
Total 2007 sales of the FX45 were 1,598 units, about a tenth of the FX35s.
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Common 2008 Infiniti Fx35 problems
The Infiniti FX35, produced between 2003 and 2008, is a popular luxury midsize SUV known for its competent engine and smooth performance. However, like any vehicle, it can develop certain problems over time. Here are some of the most common issues reported by owners:
- Timing chain problems: One of the most prevalent issues with the Infiniti FX35 is abnormal rattling or tapping noises due to timing chain problems. These noises usually occur when the vehicle reaches higher mileage, and they can be a sign of premature wear or failure of the timing chain. It is recommended to clean the throttle body every 12,000 miles without tampering with the flap to help prevent these issues.
- Wheel bearings: Prematurely worn-out wheel bearings are another common problem in the Infiniti FX35. These components may need to be replaced to resolve the issue, and it is essential to use high-quality auto parts from trusted manufacturers to ensure the best performance and longevity.
- Fuel leaks: Fuel leaks are another concern for FX35 owners. These leaks can be caused by various factors, including worn-out fuel lines, faulty fuel injectors, or damaged fuel tanks. It is crucial to address these leaks promptly to prevent potential fire hazards and ensure the vehicle's safe operation.
- Airbag defects: Defective airbags have also been reported in the Infiniti FX35. These issues can lead to malfunctions during deployment, potentially compromising the safety of the vehicle's occupants. It is essential to have any airbag-related problems addressed promptly by a qualified professional.
- Suspension issues: The rigid suspension of the Infiniti FX35 can be inexpensive to maintain, but certain components, such as struts and stabilizer bushings, may need to be replaced periodically. These parts can wear out faster on Russian cars due to the softer suspension setting, and it is crucial to monitor their condition to ensure safe and comfortable driving .
- Electrical problems: The Infiniti FX35 can suffer from various electrical issues, including malfunctioning fuel gauges, tire pressure sensors, and rearview cameras. These problems can be caused by worn-out sensors, damaged wiring, or other electrical faults. It is essential to address these issues promptly to maintain the vehicle's safety and functionality .
- Interior quality: While the Infiniti FX35 offers a luxurious interior, some owners have reported issues with the quality of the materials used. Over time, the interior may show signs of wear, including creaking seats, tapping in the steering wheel mechanism, and electrical problems with the music system .
In summary, the Infiniti FX35 is a reliable luxury midsize SUV, but like any vehicle, it can develop certain problems over time. Regular maintenance and prompt attention to any issues can help ensure the vehicle's longevity and safe operation.
What problems did the 2008 Infiniti FX35 have?
Abnormal Rattling Noise Due to Bad Timing Chain
2003-2008 Infiniti FX35 vehicles are known to develop abnormal rattling or tapping noises due to timing chain problems. These noises usually happen during cold starts.
How many miles can a 2008 Infiniti FX35 last?
Both engines, FX45 and FX35, should last over 250k miles if taken care of: Good oil and regular changes.
Is a INFINITI FX35 a good car?
To drive an FX35 is to be convinced that a sport-utility vehicle can deliver on the "sport" part of the equation. The Infiniti FX35 also does reasonably well on the luxury front. A well-designed interior features pleasant ergonomics and leather-lined seats that we've found to be especially comfortable.
What is the starting problem for INFINITI FX35?
The most common reasons an INFINITI FX35 won't start are a dead battery, an alternator problem, or failed starter.
2008 Infiniti Fx35 complaints
The NHTSA has received 0 complaints about various vehicle components related to the 2008 Infiniti Fx35.
You can leave your car complaint via the special form below.
2008 Infiniti Fx35 recalls
The National Highway Traffic Safety Administration (NHTSA) has issued 4 recalls for different components of the 2008 Infiniti Fx35.
- Manufacturer: Nissan North America, Inc.
- Components: AIR BAGS:FRONTAL
- Summary: Nissan North America, Inc. (INFINITI) is recalling certain 2003 INFINITI FX35, 2006-2008 FX35 and FX45 vehicles that previously received a replacement front passenger air bag assembly under recall number 20V-008. The air bag cushion was folded incorrectly, which could increase internal pressure and tear the air bag cushion during deployment.
- Consequence: A tear in the air bag may decrease air bag performance, and increase the risk of injury.
- Remedy: INFINITI will notify owners, and dealers will replace the front passenger air bag module, free of charge. The recall began on April 19, 2021. Owners may contact INFINITI customer service at 1-800-662-6200. INFINITI's number for this recall is R20C2.
- Manufacturer: Nissan North America, Inc.
- Components: AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE
- Summary: Nissan North America, Inc. (Nissan) is recalling certain 2001-2003 Maxima, 2002-2006 Sentra, 2002-2004 Pathfinder, 2007-2011 Versa Sedan and Versa Hatchback, 2001-2004 Infiniti I30 and I35, 2002-2003 Inifiniti QX4, 2003-2008 Infiniti FX35 and FX45 and 2006-2010 M35 and M45 vehicles. The vehicles are equipped with non-desiccated, frontal passenger air bag inflators containing phase stabilized ammonium nitrate (PSAN) propellant that were used as interim remedy parts for previous Takata recalls. These inflators may explode due to propellant degradation occurring after long-term exposure to high absolute humidity, high temperatures, and high temperature cycling.
- Consequence: An inflator explosion may result in sharp metal fragments striking the driver or other occupants resulting in serious injury or death.
- Remedy: Nissan will notify owners, and dealers will replace the front passenger air bag inflators with alternate desiccated inflators, free of charge. The recall began February 12, 2020. Owners may contact Nissan customer service at 888-737-9511 or Infiniti customer service at 888-810-3715.
- Manufacturer: Nissan North America, Inc.
- Components: AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE
- Summary: Nissan North America, Inc. (Nissan) is recalling certain 2012 Nissan Versa hatchbacks originally sold, or ever registered, in Alabama, California, Florida, Georgia, Hawaii, Louisiana, Mississippi, South Carolina, Texas, Puerto Rico, American Samoa, Guam, the Northern Mariana Islands (Saipan) and the U.S. Virgin Islands, or "Zone A". Additionally, if not included in "Zone A" above, Nissan is recalling certain 2009-2010 Infiniti M35 and M45 and 2009 Nissan Versa sedans and hatchbacks originally sold, or ever registered, in Arizona, Arkansas, Delaware, the District of Columbia, Illinois, Indiana, Kansas, Kentucky, Maryland, Missouri, Nebraska, Nevada, New Jersey, New Mexico, North Carolina, Ohio, Oklahoma, Pennsylvania, Tennessee, Virginia, and West Virginia, or "Zone B". Additionally, if not included in "Zone A" or "Zone B" above, Nissan is recalling certain 2005-2008 Infiniti FX35 and FX45, 2006-2010 Infiniti M35 and M45, and 2007-2008 Nissan Versa vehicles originally sold, or ever registered, in Alaska, Colorado, Connecticut, Idaho, Iowa, Maine, Massachusetts, Michigan, Minnesota, Montana, New Hampshire, New York, North Dakota, Oregon, Rhode Island, South Dakota, Utah, Vermont, Washington, Wisconsin, and Wyoming. These vehicles are equipped with certain air bag inflators assembled as part of the passenger frontal air bag modules used as original equipment or replacement equipment. In the event of a crash necessitating deployment of the front air bags, these inflators may rupture due to propellant degradation occurring after long-term exposure to absolute humidity and temperature cycling.
- Consequence: An inflator rupture may result in metal fragments striking the vehicle occupants resulting in serious injury or death.
- Remedy: Nissan will notify owners, and dealers will replace the front passenger air bag inflators, free of charge. The recall began on June 8, 2017. Owners will receive a second notice when remedy parts become available. Owners may contact Nissan customer service at 1-800-647-7261.
- Manufacturer: Nissan North America, Inc.
- Components: AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE
- Summary: Nissan North America, Inc. (Nissan) is recalling certain model year 2003-2008 Infiniti FX35 and FX45, 2003-2004 Infiniti I35, 2006-2010 Infiniti M35 and M45, and 2007-2011 Nissan Versa vehicles, originally sold, or ever registered, in Alabama, California, Florida, Georgia, Hawaii, Louisiana, Mississippi, South Carolina, Texas, Puerto Rico, American Samoa, Guam, the Northern Mariana Islands (Saipan), and the U.S. Virgin Islands, or "Zone A." Additionally, unless included in "Zone A" above, Nissan is recalling certain model year 2005-2008 Infiniti FX35 and FX45, 2003-2004 Infiniti I35, 2006-2008 Infiniti M35 and M45, and 2007-2008 Nissan Versa vehicles, originally sold, or ever registered, in Arizona, Arkansas, Delaware, District of Columbia, Illinois, Indiana, Kansas, Kentucky, Maryland, Missouri, Nebraska, Nevada, New Jersey, New Mexico, North Carolina, Ohio, Oklahoma, Pennsylvania, Tennessee, Virginia, and West Virginia, or "Zone B." Lastly, unless included in "Zone A" or "Zone B" above, Nissan is recalling certain model year 2003-2004 Infiniti I35 vehicles originally sold, or registered, in Alaska, Colorado, Connecticut, Idaho, Iowa, Maine, Massachusetts, Michigan, Minnesota, Montana, New Hampshire, New York, North Dakota, Oregon, Rhode Island, South Dakota, Utah, Vermont, Washington, Wisconsin, and Wyoming. These vehicles are equipped with certain air bag inflators assembled as part of the passenger frontal air bag modules, and used as original equipment or replacement equipment. These inflators may rupture due to propellant degradation occurring after long-term exposure to absolute humidity and temperature cycling.
- Consequence: An inflator rupture may result in metal fragments striking the vehicle occupants resulting in serious injury or death.
- Remedy: Nissan will notify owners, and dealers will replace the passenger frontal air bag inflator, free of charge. The recall began December 21, 2017. All owners should receive a second notice by May 15, 2017. Owners may contact Nissan customer service at 1-800-647-7261.
Positive 2008 Infiniti Fx35 car reviews
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Johan Satterfield 2025-06-10
I bought this car yesterday afternoon in Houston and drove it 350 miles home immediately afterwards. I already own a BMW 325I, which is my wife's car, but I wanted an X5. After this drive, I can confidently say that I have no regrets! The X5 is a supreme and finely balanced machine, even though it's not the top of the line. The sound system is second to none and kept me entertained throughout the whole route. I test drove an MDX, Acadia, X5, X3, but this car is in a league of its own. The local dealer test drive doesn't do it justice. Wow!
Saige Bernhard 2025-06-06
Hi there! I hope you're doing well. I just wanted to share my experience with the FX35. When I was looking for a new car, I needed more room and had to give up the convertible. But when I test-drove this car, I was really surprised and fell in love with it! The FX35 has a great sporty look and handles as well as my 2005 BMW 330 CiC (with sport pkg). I really enjoy driving it, especially since I have almost all the options - sport pkg, touring, handsfree, (except DVD player). It's very luxurious on the inside, and I haven't given up anything. I can't imagine driving anything else. Thanks for listening!
Torrey Walsh 2025-06-04
My husband needed a new car, so I did my homework and found the FX35. I absolutely loved the shape and appearance of the car, it's such a strong and sharp looking vehicle. We test drove the Nissan Murano, but the feel was different than the FX. I really appreciated the fact that the FX is a rear wheel drive. Now, I get to drive the car every day and my husband drives the second car.
Pietro Little 2025-05-05
I recently traded in my 328XI Sportwagon because my wife wanted something bigger. Although I never had any issues with my wagon, I found BMWs to be quite non-user friendly. I mean, no dip stick? Come on! On the other hand, the FX looks better than an X5 or X3 and is much cheaper. I had a 1991 Q45 which was a blast, so I thought the FX might work for me. And I was not disappointed. It's a great car, once I worked out the APPLE-bluetooth issues and the IPOD connection that was never mentioned in the manual. Currently, I am working on a slight shimmy that seems to be indicative of the 2008 FX, but it's not enough to keep me from enjoying the car. I'm just a little OCD about my vehicles.
Emile Witting 2025-05-04
I leased the FX35 on 12/28 and have already driven 1700 miles. Overall, I am pleased with the vehicle. The handling is superb, although it could benefit from a bit more horsepower. The 270HP is adequate, but a little extra power would be nice. Recently, on a snowy and slippery day, I engaged the full-time AWD button and was pleasantly surprised. The car did not spin out or slide even once. The cabin is also very comfortable. All in all, I am very happy with the FX35.