NICOclub.com purchases, downloads, and maintains a comprehensive directory of Infiniti FX Factory Service Manuals for use by our registered members.*
The Infiniti FX series was the successor to the QX4 midsized luxury SUV, but it went in a vastly different direction. It was more of stylish, luxury crossover with a sporty edge. Sharing its platform with the Nissan 350Z instead of a Pathfinder, the aggressively styled FX was more of a fun-to-drive street machine than offroad-capable SUV. The FX was offered with both RWD and AWD versions. The FX35 had the 300hp 3.5L V6 motor from the 350Z with a five-speed automatic tranny that featured a manumatic shift mode. The pricier FX45 used a more powerful 4.5 liter V8, but both were equipped with same Infiniti luxury touches.
The next generation FX came out in the 2009 model year. The better selling V6 version remained the FX35, but the V8 model was renamed FX50, due to an engine change to a new 5.0L V8, which put out close to 400 hp, and a smoother shifting 7 speed automatic transmission. The exterior looks were softened a bit, the interior was upgraded in design and material, and the suspension was upgraded improving what was already a pretty good ride with decent handling. A minor facelift followed in 2012. But in 2014, Infiniti renamed its entire product line using the letter Q plus 2 digit multiples of 10. So the FX37 and FX50 became the QX70.
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