The 2008 Infiniti QX56 is a full-size luxury SUV, part of its first generation (2004-2010), sharing its robust body-on-frame platform with the Nissan Armada. It features a powerful V8 engine and a single, highly equipped trim level. Its popularity stems from offering formidable towing capacity, luxurious amenities, and generous interior space at a competitive price point, making it stand out as a value-oriented luxury hauler.
The Good
The 2008 QX56 boasts a powerful V8 for strong performance and an impressive 9,000 lbs towing capacity, appealing to practical buyers. Emotionally, its luxurious, spacious interior with a smooth ride ensures comfort for long trips. As a used vehicle, it offers significant luxury and utility at a compelling value.
The Bad
Key weaknesses include its notably poor fuel economy and large, sometimes unwieldy size. Owners frequently report issues with the notorious timing chain guides, rapid brake wear, and potential failures in suspension components. Interior plastics can also feel less premium compared to some rivals, and the tech is dated.
2008 Infiniti QX56: Quick Overview
- Engine: 5.6-liter VK56DE V8, naturally aspirated. This was the sole engine option available for the 2008 QX56.
- Horsepower: 320 hp @ 5,200 rpm
- Torque: 393 lb-ft @ 3,400 rpm
- Transmission: 5-speed automatic transmission
- Drivetrain: Available in Rear-Wheel Drive (RWD) or All-Mode 4WD (part-time and full-time selectable modes).
- Fuel Economy (EPA Estimates):
RWD: Approximately 13 MPG city / 18 MPG highway / 15 MPG combined
4WD: Approximately 12 MPG city / 17 MPG highway / 14 MPG combined - 0-60 mph Acceleration: Typically ranges from 7.0 to 7.3 seconds, competitive for a large SUV of its era.
- Towing Capacity:
RWD: Up to 9,000 lbs (with proper equipment)
4WD: Up to 8,900 lbs (with proper equipment) - Trim-Level Features (Standard for the single, well-equipped trim):
Luxury interior with leather-appointed seating
Heated, 10-way power-adjustable driver's seat; 8-way power-adjustable passenger seat
Power-folding 60/40 split third-row seat
Bose premium audio system with 10 speakers and 6-CD in-dash changer
Infiniti Navigation System with a 7-inch LCD screen and rearview monitor
Dual-zone automatic climate control for front, separate rear climate control
Power liftgate
18-inch alloy wheels
HID (High-Intensity Discharge) headlights with auto on/off
Integrated running boards
Bluetooth hands-free phone system
Power-adjustable pedals and tilt/telescoping steering column
Optional: Rear DVD entertainment system, Chrome Package.
2008 Infiniti QX56 Specifications
Vehicle Information
| Year | 2008 |
| Make | Infiniti |
| Model | QX56 |
| Trim | - |
| Style | All-Wheel Drive |
| Type | Sport Utility Vehicle |
| Category | Standard Sport Utility Vehicle |
Manufacturing Details
| Made In | United States |
| Manufacturing City | CANTON |
Dimensions
| Doors | 4-Door |
| Curb Weight | 5903 pounds |
| Gross Vehicle Weight Rating | 7300 pounds |
| Overall Height | 78.70 inches |
| Overall Length | 206.90 inches |
| Overall Width | 79.50 inches |
| Wheelbase Length | 123.20 inches |
| Standard Seating | 7 |
Engine & Performance
| Engine | 5.6-L V-8 DOHC 32V |
| Engine Size | 5.6L |
| Engine Cylinders | 8 |
| Transmission | 5-Speed Automatic |
| Transmission Type | Automatic |
| Transmission Speeds | 5-Speed |
| Drivetrain | All-Wheel Drive |
Additional Features
| Anti-Brake System | 4-Wheel ABS |
| Steering Type | Rack & Pinion |
Pricing
| Manufacturer Suggested Retail Price (MSRP) | $55,550 |
| Invoice Price | $51,021 |
| Delivery Charges | $815 |
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What Problems Does the 2008 Infiniti QX56 Have?
The 2008 Infiniti QX56, while offering robust performance, is known for several recurring issues that prospective owners should be aware of. The most significant and frequently reported problem is related to the engine's timing chain guides. These plastic guides, particularly on the VK56DE engine used in this generation, are prone to premature wear. When they fail, it can lead to a rattling noise from the engine, especially at idle, and if left unaddressed, can cause severe engine damage. This is a costly repair, often running into several thousands of dollars.
Another common complaint involves the braking system. Due to the vehicle's considerable weight, brake pads and rotors tend to wear out quickly, leading to frequent replacements. Owners often report brake pulsation or shuddering, indicating warped rotors.
Suspension components are also a weak point. Issues such as worn control arm bushings, tie rods, and sway bar links can lead to clunking noises, loose steering, or uneven tire wear. If the vehicle is equipped with the optional air suspension, leaks or compressor failures can occur, resulting in a sagging rear end and an expensive fix.
Some owners report issues with the rear differential, including leaks or audible whine/noise, particularly at higher mileages. The power liftgate motor or sensors can fail, preventing the liftgate from operating correctly. Additionally, minor electrical gremlins, such as issues with the HVAC blower motor or resistor, and glitches with the aging navigation/infotainment system, are not uncommon.
Regarding recalls, it's always advisable to check the NHTSA (National Highway Traffic Safety Administration) website using the VIN, as recalls can be issued years after production for various components, including airbags (e.g., Takata recalls for some Infiniti models), specific electrical systems, or fuel line concerns. For the 2008 model year, specific widespread recalls beyond general Nissan/Infiniti issues were less common than the aforementioned mechanical wear items.
Another common complaint involves the braking system. Due to the vehicle's considerable weight, brake pads and rotors tend to wear out quickly, leading to frequent replacements. Owners often report brake pulsation or shuddering, indicating warped rotors.
Suspension components are also a weak point. Issues such as worn control arm bushings, tie rods, and sway bar links can lead to clunking noises, loose steering, or uneven tire wear. If the vehicle is equipped with the optional air suspension, leaks or compressor failures can occur, resulting in a sagging rear end and an expensive fix.
Some owners report issues with the rear differential, including leaks or audible whine/noise, particularly at higher mileages. The power liftgate motor or sensors can fail, preventing the liftgate from operating correctly. Additionally, minor electrical gremlins, such as issues with the HVAC blower motor or resistor, and glitches with the aging navigation/infotainment system, are not uncommon.
Regarding recalls, it's always advisable to check the NHTSA (National Highway Traffic Safety Administration) website using the VIN, as recalls can be issued years after production for various components, including airbags (e.g., Takata recalls for some Infiniti models), specific electrical systems, or fuel line concerns. For the 2008 model year, specific widespread recalls beyond general Nissan/Infiniti issues were less common than the aforementioned mechanical wear items.
How long will the 2008 Infiniti QX56 last?
With diligent maintenance, a 2008 Infiniti QX56 can reliably serve for 150,000 to 200,000 miles, with some well-cared-for examples exceeding 250,000 miles. The core engine and transmission are generally durable units, but their longevity heavily hinges on proactive maintenance. The most critical long-term weakness is the timing chain guide issue; addressing this proactively is paramount for engine survival. Other weaknesses that manifest over time include accelerated wear on suspension components (bushings, control arms), consistent brake wear, and potential power liftgate or electrical glitches. Neglecting fluid changes, belt replacements, and addressing the known timing chain problem will significantly shorten its lifespan and escalate repair costs. Regular and timely service is the key to maximizing its years of service.
What Technology & Safety Features are Included?
The 2008 Infiniti QX56 came well-equipped for its time, focusing on luxury, convenience, and a solid array of safety features, though advanced driver-assistance systems were less prevalent.
Infotainment & Entertainment:
The centerpiece was a standard 7-inch color LCD display integrated with the Infiniti Navigation System. This system also displayed the feed from the standard rearview monitor, a crucial aid for parking such a large vehicle. For audio, a premium 10-speaker Bose sound system was standard, complete with an in-dash 6-CD changer and XM Satellite Radio capabilities. Bluetooth hands-free phone system was also included, allowing for safer communication while driving. An optional rear DVD entertainment system was available, typically comprising a ceiling-mounted screen, wireless headphones, and remote control, making long journeys more palatable for rear passengers.
Comfort & Convenience Tech:
This model offered tri-zone automatic climate control, allowing separate temperature settings for the driver, front passenger, and rear cabin. Other notable features included power-adjustable pedals, a power tilt/telescoping steering column for optimal driving position, heated front seats, and a convenient power liftgate. The third-row seats were also power-folding, simplifying cargo expansion.
Driver-Assistance Features:
Compared to modern vehicles, the 2008 QX56 had limited advanced driver-assistance systems. The standard rearview monitor was a significant safety and convenience feature. More sophisticated systems like Intelligent Cruise Control or Lane Departure Warning, while beginning to appear on some luxury vehicles, were generally not standard or widely available on the QX56 for this model year.
Safety Features:
The QX56 included a comprehensive suite of passive and active safety features:
Specific crash-test ratings from organizations like NHTSA or IIHS for the 2008 Infiniti QX56 itself are often difficult to find, as these large luxury SUVs were not always put through the same rigorous, model-specific testing as more common vehicles. However, being built on a robust, body-on-frame platform shared with the Nissan Armada, it generally offered substantial occupant protection due to its size and construction. Relying on its Nissan platform sibling's ratings might provide a general idea, but direct data for the QX56 is scarce for this vintage.
Infotainment & Entertainment:
The centerpiece was a standard 7-inch color LCD display integrated with the Infiniti Navigation System. This system also displayed the feed from the standard rearview monitor, a crucial aid for parking such a large vehicle. For audio, a premium 10-speaker Bose sound system was standard, complete with an in-dash 6-CD changer and XM Satellite Radio capabilities. Bluetooth hands-free phone system was also included, allowing for safer communication while driving. An optional rear DVD entertainment system was available, typically comprising a ceiling-mounted screen, wireless headphones, and remote control, making long journeys more palatable for rear passengers.
Comfort & Convenience Tech:
This model offered tri-zone automatic climate control, allowing separate temperature settings for the driver, front passenger, and rear cabin. Other notable features included power-adjustable pedals, a power tilt/telescoping steering column for optimal driving position, heated front seats, and a convenient power liftgate. The third-row seats were also power-folding, simplifying cargo expansion.
Driver-Assistance Features:
Compared to modern vehicles, the 2008 QX56 had limited advanced driver-assistance systems. The standard rearview monitor was a significant safety and convenience feature. More sophisticated systems like Intelligent Cruise Control or Lane Departure Warning, while beginning to appear on some luxury vehicles, were generally not standard or widely available on the QX56 for this model year.
Safety Features:
The QX56 included a comprehensive suite of passive and active safety features:
- Airbags: Dual-stage supplemental front airbags with seatbelt sensors, front seat-mounted side-impact supplemental airbags, and roof-mounted side-impact curtain airbags with rollover sensor for all three rows of outboard occupants.
- Braking & Stability: 4-wheel Anti-lock Braking System (ABS), Electronic Brake force Distribution (EBD), and Brake Assist (BA) for optimized stopping power.
- Traction & Stability Control: Vehicle Dynamic Control (VDC) with Traction Control System (TCS) to maintain stability in challenging conditions.
- Tire Pressure Monitoring System (TPMS): Standard to alert drivers to low tire pressure.
Specific crash-test ratings from organizations like NHTSA or IIHS for the 2008 Infiniti QX56 itself are often difficult to find, as these large luxury SUVs were not always put through the same rigorous, model-specific testing as more common vehicles. However, being built on a robust, body-on-frame platform shared with the Nissan Armada, it generally offered substantial occupant protection due to its size and construction. Relying on its Nissan platform sibling's ratings might provide a general idea, but direct data for the QX56 is scarce for this vintage.
What Colors Options are Available?
2008 Infiniti QX56 Prices and Market Value
When new in 2008, the Infiniti QX56 typically retailed in the range of $53,000 to $56,000, depending on whether it was RWD or 4WD and any optional packages. Today, in 2024, current used market prices vary significantly, generally ranging from $5,000 to $12,000 or more for exceptionally well-maintained, lower-mileage examples. This represents a substantial depreciation.
Luxury SUVs, especially large, thirsty ones, experience steep depreciation. Factors severely impacting the QX56's resale value include its notorious fuel economy, high mileage, and the looming threat of the costly timing chain guide repair. A documented service history, particularly if the timing chain issue has been preemptively addressed, and excellent cosmetic condition can help mitigate some of this depreciation, but its inherent high running costs continue to depress its value.
Luxury SUVs, especially large, thirsty ones, experience steep depreciation. Factors severely impacting the QX56's resale value include its notorious fuel economy, high mileage, and the looming threat of the costly timing chain guide repair. A documented service history, particularly if the timing chain issue has been preemptively addressed, and excellent cosmetic condition can help mitigate some of this depreciation, but its inherent high running costs continue to depress its value.
2008 Infiniti QX56 Cost of Ownership
The 2008 Infiniti QX56 is a costly vehicle to own long-term.
Insurance: Expect higher-than-average premiums due to its luxury branding, repair complexity, and replacement part costs.
Fuel: This is a major expense. The 5.6L V8 delivers notoriously poor fuel economy, typically 12-13 MPG combined, demanding frequent fill-ups with premium fuel.
Maintenance & Repair: Can be substantial. Infiniti parts are pricier than Nissan counterparts. Expect significant costs for routine items like tires and brakes due to its weight. The potential for a multi-thousand-dollar timing chain guide repair, along with common suspension and electrical issues, means owners must budget considerably for repairs. This vehicle is not an economical choice for budget-conscious buyers.
Insurance: Expect higher-than-average premiums due to its luxury branding, repair complexity, and replacement part costs.
Fuel: This is a major expense. The 5.6L V8 delivers notoriously poor fuel economy, typically 12-13 MPG combined, demanding frequent fill-ups with premium fuel.
Maintenance & Repair: Can be substantial. Infiniti parts are pricier than Nissan counterparts. Expect significant costs for routine items like tires and brakes due to its weight. The potential for a multi-thousand-dollar timing chain guide repair, along with common suspension and electrical issues, means owners must budget considerably for repairs. This vehicle is not an economical choice for budget-conscious buyers.
2008 Infiniti QX56 Fuel Efficiency
Fuel Type
Gasoline
Fuel Capacity
28.00 gallons
City Mileage
12 miles/gallon
Highway Mileage
17 miles/gallon
2008 Infiniti QX56 Safety Rating
NHTSA
IIHS
2008 Infiniti QX56 Warranty
Basic
Original warranty
48 months / 60,000 miles
Estimated remaining
Expired
Powertrain
Original warranty
72 months / 70,000 miles
Estimated remaining
Expired
Rust
Original warranty
84 months / unlimited miles
Estimated remaining
Expired
2008 Infiniti QX56 Insurance
Insurance for a 2008 Infiniti QX56 is moderately priced, reflecting its status as a Sport Utility Vehicle with strong safety ratings and
reasonable repair costs.
reasonable repair costs.
How Does the 2008 Infiniti QX56 Compare to Other Sport Utility Vehicle?
The 2008 Infiniti QX56 competes in the full-size luxury SUV segment against rivals like the Cadillac Escalade, Lincoln Navigator, Lexus LX 470/570, and Mercedes-Benz GL-Class.
Performance: The QX56's 320-hp V8 offers competitive acceleration and impressive towing capacity (up to 9,000 lbs), often matching or slightly exceeding the Cadillac Escalade and Lincoln Navigator in brute force, and certainly more potent than the older Lexus LX 470. Its ride quality is generally smooth and comfortable, though not as dynamically refined as some European competitors.
Features: When new, the QX56 offered an excellent package of standard luxury features (leather, navigation, Bose audio, power third-row) that might have been optional on rivals, providing strong value. However, its interior design and material quality, while good, felt a step below the more opulent Cadillac Escalade or the timeless elegance of the Lexus LX. Its tech, particularly the navigation system, aged more rapidly than some.
Reliability: This is a mixed bag for the QX56. While the fundamental drivetrain is robust, the well-documented timing chain guide issue is a significant concern that can lead to very costly repairs, a weakness not shared by the legendary reliability of the Lexus LX (which is often considered bulletproof). The Escalade and Navigator also have their own common issues (e.g., electrical, suspension), but perhaps fewer core engine concerns. The Mercedes-Benz GL-Class of this era, while offering superior refinement, is known for complex systems that can be incredibly expensive to repair long-term.
Price (Used): The QX56, like the Escalade and Navigator, has experienced significant depreciation, making it a very affordable used luxury SUV. The Lexus LX, owing to its unparalleled reliability, commands a much higher used price.
Recommended Alternatives:
Performance: The QX56's 320-hp V8 offers competitive acceleration and impressive towing capacity (up to 9,000 lbs), often matching or slightly exceeding the Cadillac Escalade and Lincoln Navigator in brute force, and certainly more potent than the older Lexus LX 470. Its ride quality is generally smooth and comfortable, though not as dynamically refined as some European competitors.
Features: When new, the QX56 offered an excellent package of standard luxury features (leather, navigation, Bose audio, power third-row) that might have been optional on rivals, providing strong value. However, its interior design and material quality, while good, felt a step below the more opulent Cadillac Escalade or the timeless elegance of the Lexus LX. Its tech, particularly the navigation system, aged more rapidly than some.
Reliability: This is a mixed bag for the QX56. While the fundamental drivetrain is robust, the well-documented timing chain guide issue is a significant concern that can lead to very costly repairs, a weakness not shared by the legendary reliability of the Lexus LX (which is often considered bulletproof). The Escalade and Navigator also have their own common issues (e.g., electrical, suspension), but perhaps fewer core engine concerns. The Mercedes-Benz GL-Class of this era, while offering superior refinement, is known for complex systems that can be incredibly expensive to repair long-term.
Price (Used): The QX56, like the Escalade and Navigator, has experienced significant depreciation, making it a very affordable used luxury SUV. The Lexus LX, owing to its unparalleled reliability, commands a much higher used price.
Recommended Alternatives:
- For Unrivaled Reliability: A Lexus LX 470 (or LX 570 if the budget stretches) is the benchmark for long-term durability, though it will likely cost more upfront.
- For Similar Value and Utility: The Nissan Armada from the same generation offers nearly identical mechanicals and capability without the Infiniti premium or some luxury-specific parts costs. It's a more pragmatic choice.
- For More Interior Flair: The Cadillac Escalade or Lincoln Navigator offer a different take on American luxury, with comparable performance and ownership costs, but potentially different common issues.
Final Verdict: Is the 2008 Infiniti QX56 a Good Sport Utility Vehicle?
The 2008 Infiniti QX56 is ideal for buyers seeking a large, powerful, and comfortable full-size luxury SUV for strong towing or hauling a big family, all at a significantly depreciated price. It's perfect for someone who prioritizes spaciousness, a commanding presence, and a long list of luxury features over cutting-edge technology or ultimate fuel efficiency. It is worth buying used, but only under very specific conditions.
A purchase is advisable only for well-maintained examples with complete service records, ideally where the critical timing chain guide issue has already been addressed. A thorough pre-purchase inspection by a mechanic specializing in Nissan/Infiniti is absolutely non-negotiable. Buyers must be prepared for its high fuel consumption and the potential for expensive repairs, especially concerning the engine and suspension. It's not for the budget-strapped or mechanically faint-hearted. If you're willing to invest in its upkeep, it offers tremendous luxury and utility for the money; otherwise, consider more reliable or economical alternatives.
A purchase is advisable only for well-maintained examples with complete service records, ideally where the critical timing chain guide issue has already been addressed. A thorough pre-purchase inspection by a mechanic specializing in Nissan/Infiniti is absolutely non-negotiable. Buyers must be prepared for its high fuel consumption and the potential for expensive repairs, especially concerning the engine and suspension. It's not for the budget-strapped or mechanically faint-hearted. If you're willing to invest in its upkeep, it offers tremendous luxury and utility for the money; otherwise, consider more reliable or economical alternatives.