2004-2008 Infiniti QX56: Reliability
Updated: 11/23/08
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Our reliability study for this generation Infiniti QX includes details on average repair costs, manufacturer recalls, and everything you need to know to gauge the long-term reliability of this generation Infiniti QX .
Trouble Spots
Consumer Guide's® Auto Editors have scoured repair bulletins and questioned mechanics to search
for commonly occurring problems for a particular vehicle. In some cases we also give possible manufacturer-suggested
solutions. In many instances these trouble spots are Technical Service Bulletins posted by the manufacturer,
however, we have our own expert looking at additional vehicle problems.
Air conditioner:
Air conditioner may quit working at idle on some early production vehicles. (2005)
Cruise control:
Cruise control may not set or may cancel itself due to maladjustment of the switch on the brake pedal. (2004)
Electrical problem:
The electrical system could be damaged or even start a fire due to a short if trailer wiring is connected wrong. The company was updating earlier models with revised body control module and wiring harness, but only on vehicles that entered the shop so it is important to check that this service was performed. (2004-05)
Electrical problem:
Low power at wide-open throttle may be caused by low fuel pressure. (2004-06)
Engine noise:
What sounds like engine knock may be a problem with service port fitting in the evaporative emissions control system and a revised part is available. (2004)
Engine stalling:
The engine may not restart after a short trip (less than 10 minutes) in very cold weather (less than 10 degrees F), requiring replacement of the power distribution module. (2004)
None:
The automatic power-up feature may quit working due to a failed switch. (2004)
Tire wear:
Tires may lose air due to broken O-ring for tire pressure monitoring system transmitter. (2004)
Transmission leak:
Transmission fluid may leak from the connections for the transmission cooler and revised fluid lines and clamps have been released. (2004-05)
Water leak:
The engine may not crank or may crank but not start, or the transmission may misbehave due to water getting into and corroding the connector between the engine control wiring harness and transmission wiring harness. (2004-05)
Consumer Guide® Estimated Repair Costs
This table lists costs of likely repairs for comparison with other vehicles. The
dollar amount includes the cost of the part(s) and labor (based on $50 per hour) for the
typical repair without extras or add-ons. Like the pricing information, replacement
costs can vary widely depending on region. Expect charges at a new-car dealership
to be slightly higher.
| Item Name | Repair Cost |
| A/C Compressor | $870 |
| Alternator | $980 |
| Automatic Transmission or Transaxle | $4,555 |
| Brakes | $670 |
| Clutch, Pressure Plate, Bearing | |
| Constant Velocity Joints | $1,530 |
| Exhaust System | $850 |
| Radiator | $650 |
| Shocks and/or Struts | $3,405 |
| Timing Chain or Belt | $1,450 |
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