Model Description
The first Infiniti QX56, introduced in 2004, became the flagship model for the Japanese premium brand and its bold response to the growing popularity of full-size luxury SUVs in the US, such as the Lincoln Navigator and Cadillac Escalade. This model laid the foundation for the DNA of all subsequent large Infiniti SUVs.
Production Years and Model Code:
- Generation: First (I)
- Production Years: 2004 – 2010
- Model Code: JA60. This is a key fact: the first-generation QX56 was built on the same platform as the Nissan Patrol (Y62), Nissan Armada, and Titan. Until 2008, it was manufactured in Japan, and after that, in a plant in the USA.
Technical Specifications (for the North American market):
- Engine: Gasoline, V8, 5.6-liter (code VK56DE).
- Power: 315–320 hp (depending on the model year).
- Torque: 529 N·m.
- Transmission: 5-speed automatic (5R50).
- Drivetrain: Standard rear-wheel drive (RWD) or optional four-wheel drive (4WD) with a two-speed transfer case and mode selection (AUTO, 4H, 4LO).
- Suspension: Independent front suspension on double wishbones, dependent spring rear suspension (same as the Nissan Patrol).
- Dimensions (L/W/H, approx.): 5250 mm / 2000 mm / 1960 mm.
- Wheelbase: 3120 mm.
- Curb Weight: ~2600 kg.
How to Remove the Front Bumper
- Open the hood.
- Under the hood, remove six plastic push-pins (inserted from top to bottom) and three push-pins (inserted from bottom to top) that secure the bumper to the metal bar.
- From underneath the vehicle, remove two push-pins (inserted from bottom to top) that secure the lower part to the engine compartment shield.
- Turn the wheels to the side, depending on which side you are working on.
- In the wheel arches, unscrew two screws on each side that secure the fender liners (front part) to the sides of the bumper.
- Behind the fender liners, unscrew one screw on each side (threaded from bottom to top) that secure the corners to the fenders.
- Release the clips under the headlights (pull towards yourself).
- With an assistant, carefully pull the bumper forward (be careful not to tear any wires).
- Disconnect the connectors for the fog lights and other electrical equipment.


How to Remove the Rear Bumper
- Open the trunk lid.
- In the trunk opening, unscrew two screws on each side, release from the retainers, and remove the rear tail lights.
- Under the tail lights, unscrew one screw on each side (threaded from top to bottom).
- From underneath the vehicle, unscrew four screws.
- In the trunk, remove the side trim panels.
- Inside the wheel arches, release three fasteners on each side (turn ¼ of a turn).
- With an assistant, release from the clips and pull the rear bumper backward (be careful not to tear any wires).
- Disconnect the electrical equipment connectors.



Interesting Facts About the Model
- "Patrol" in a Tuxedo. The QX56 I was almost identical in chassis and mechanics to the Nissan Armada, which in turn is the North American version of the legendary Nissan Patrol Y62. This endowed the Infiniti with outstanding off-road capabilities that often surpassed those of its pickup-based competitors.
- Change of Residence. In 2008, the model underwent a facelift and production was moved from Japan to the USA, to a plant in Canton, Mississippi, where its "brothers," the Armada and Titan, were assembled.
- Luxury Trim. The QX56 came standard with an incredible level of equipment for its time: leather upholstery, xenon headlights, a four-wheel-drive system, three-zone climate control, and a premium Bose audio system.
- Safety Technologies. It already came standard with a stability control system (VDC), a traction control system (TCS), and side curtain airbags. The Blind Spot Warning (BSW) system was an innovation in its class.
Advantages:
- Powerful and Reliable Engine: The VK56DE engine proved to be very durable and provided excellent dynamics for such a heavy vehicle.
- Excellent Off-Road Capability: Thanks to a robust frame, a genuine low-range gear, and electronic systems, the QX56 was one of the most capable off-roaders in its "luxury" class.
- Spacious and Comfortable Interior: A seven-seat cabin with seats adjustable over a wide range and a huge trunk.
- High Durability Reserve: The design, inherited from the Patrol, was built for a long service life under harsh conditions.
Disadvantages:
- High Fuel Consumption: In mixed driving conditions, it was around 16-18 L/100 km, and in the city, it could easily exceed 20-22 L/100 km. This was the price for its size and power.
- Bulkiness: It was difficult to maneuver in dense urban environments, requiring getting used to.
- Outdated 5-Speed Automatic Transmission: Compared to competitors who were already switching to 6- and 8-speed automatic transmissions, the 5-speed gearbox seemed archaic and somewhat restrained the engine's potential.
- Quality Nuances: After production was moved to the USA, some owners reported minor interior creaks and less-than-ideal noise insulation compared to Japanese-made examples.
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