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The Infiniti FX is a mid-size luxury crossover SUV (E-segment in Europe) produced by the Japanese automaker Nissan under its premium brand Infiniti. It was launched in 2002 as the successor to the Infiniti QX4.

The first generation of the Infiniti FX was built on the Nissan FM platform, mainly used for vehicles such as the Nissan 370Z or the Nissan Murano. Interestingly, this platform is well suited for both rear-wheel drive and front-wheel drive cars. The Infiniti FX had no equivalent within the Nissan brand and was never sold in Japan.

As is often the case with Infiniti, its vehicles have different surnames depending on engine placement. In this case, the Infiniti FX35 and FX45 referred to its two available engines: a 3.5-liter V6 and a 4.5-liter V8, and were sold with rear-wheel drive (RWD) and all-wheel drive (AWD). In 2006, this model got a facelift with a new grille, new fenders and a revised interior.

Infiniti FX Vettel Edition (2013)

The second generation of the Infiniti FX arrived in 2008, and lasted until 2013, when it was renamed the Infiniti QX70 to bring the model in line with the brand’s new nomenclature. The FX37 and FX30 models were sold in Europe, while in other countries the FX50 variant with a 5-liter V8 engine was the one marketed. In 2011 and 2012, this model had a variant called Infiniti FX S Limited Edition, with a refreshed exterior. Also in 2012, the Infiniti FX Sebastian Vettel Edition was launched in honor of the Formula 1 champion. Only 150 units were sold in total.

The Infiniti FX had a total of 2 generations until it was replaced by the Infiniti QX70. Among its alternatives are the Range Rover Sport, the BMW X5, the Mercedes-Benz GLE-Class, the Volvo XC90, the Lexus GX and the Porsche Cayenne.

Infiniti FX. Timing Belt or Timing Chain?

Down below you will see a list with all the Infiniti FX models which have been produced so far. They are classified by model identifier, year and type of bodywork. Above each list, we show you a series of pictures so that you can have a visual reference for each model. In some cases, both the original and its updated design are displayed to help you identify them with ease.

In this guide you will find all the Infiniti FX models.

■ Timing Belt / Cam Belt (Correa / Faja de Distribución)
■ Timing Chain (Cadena de Distribución / Cadena de Tiempo)
■ Gear Driven (Distribución por Engranajes)
100% Electric, No Timing (Sin Distribución)
Unknown / Not Updated (Información desconocida)

If a car model is specified in blue, it means its motor engine has a timing chain; that is, it has no timing belt. The rest of the vehicles marked in grey have a timing belt/cam belt.

Infiniti FX I – First Generation (S50) (2002)


Diesel Engines

There are no diesel-engined versions of the Infiniti FX Gen 1.

Petrol Engines

  • VQ35DE 3.5 280 CV (2003 – 2008)
  • VQ35DE 3.5 AWD 280 CV (2003 – 2008)
  • VK45DE 4.5 316 CV (2003 – 2008)
  • VK45DE 4.5 AWD 316 CV (2003 – 2008)

Infiniti FX II – Second Generation (S51) (2008)


Diesel Engines

  • V9X 3.0 D AWD 238 CV (2010)

Petrol Engines

  • VQ35HR 3.5 307 CV (2008 – 2011)
  • VQ35HR 3.5 AWD 303 CV (2012)
  • VQ35HR 3.5 AWD 307 CV (2009 – 2010)
  • VQ37VHR 3.7 AWD 320 CV (2008)
  • VQ37VHR 3.7 AWD 329 CV (2012)
  • VQ35HR 3.5 279 CV (2008 – 2009)
  • VQ35HR 3.5 AWD 332 CV (2010 – 2012)
  • VQ35HR 3.5 AWD 279 CV (2008 – 2009)
  • VQ37VHR 3.7 AWD 351 CV (2012 – 2013)
  • VQ37VHR 3.7 AWD 333 CV (2008 – 2013)
  • VK50VE 5.0 AWD 390 CV (2008)
  • VK50VE 5.0 AWD 395 CV (2008)
  • VK50VE 5.0 AWD 420 CV (2013)

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