Trim / Codes

Cosmetic and trim package updates were implemented for the 2004 model year. Service considerations include checking the timing components and fluid flushes, especially for the transmission and cooling system. Inspecting the brakes and suspension components is recommended due to the vehicle's age and driving profile.

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  2004_Q45

  The 2004 Nissan Q45 is a full-size luxury sedan powered by a 4.5-liter VK45DE V8 producing 340 horsepower, paired with a 5-speed automatic transmission and rear-wheel drive. It was offered in a single, well-equipped trim level with leather upholstery, heated seats, xenon headlights, and an available navigation system. Typical maintenance focus includes the timing chain and tensioner assembly, ignition coils, and the fuel gauge sending unit, which are known wear items on this generation. The 5-speed automatic transmission benefits from regular fluid service, as the RE5R05A unit can be sensitive to degraded fluid.