🏷️ Basic Information

Make:

Infiniti

Model:

Q45

Year:

2006

Chassis Code:

F50

👋 Introduction

Market Position:

The 2006 Infiniti Q45 was positioned as a flagship luxury sedan, competing with established German and American marques in the premium segment.

Competitive Analysis:

Competed with vehicles such as the Lexus LS, Mercedes-Benz S-Class, BMW 7 Series, and Audi A8. The Q45 offered a blend of performance, luxury, and advanced technology, often at a more competitive price point.

Key Features:

Powerful V8 engine, sophisticated suspension system (e.g., Active Rear-Wheel Steering on some models), luxurious interior appointments, advanced infotainment, and a smooth, quiet ride.

📋 Manual Details

Coverage Areas:

Full service and repair for 2006 Infiniti Q45

Page Count:

N/A (Software-based, dynamically accessed)

Manual Type:

Official Service and Repair Manual Software

Language:

English

Format:

Online Access (Web Browser)

📖 Manual Coverage

Systems Covered:

Engine, Transmission, Drivetrain, Brakes, Suspension, Steering, Electrical System, HVAC, Body, Chassis, Wiring Diagrams

Procedures Included:

Diagnostic procedures, Repair procedures, Maintenance schedules, Troubleshooting guides, Component removal and installation, Wiring harness repair, Fluid checks and replacements, Specifications and tolerances

Technical Depth:

Comprehensive, including detailed diagnostics, component-level repairs, and complete rebuild procedures.

📊 Manual Specifications

File Format:

Proprietary Online Platform (Web-based)

Print Quality:

N/A (Digital content, viewable on screen)

Binding Type:

N/A (No physical binding)

Paper Type:

N/A (Digital content)

⚙️ Engine Specifications

Primary Engine:

VK45DE

Horsepower:

340 hp @ 6,400 rpm

Torque:

330 lb-ft @ 4,000 rpm

Fuel System:

Electronic Fuel Injection (EFI)

Engine Configuration:

4.5L V8

Bore X Stroke:

93.0 mm x 82.7 mm

Compression Ratio:

9.8:1

Valvetrain:

DOHC, 32 valves

🔧 Transmission

Standard:

5-speed automatic transmission

Optional:

N/A

Features:

Electronically controlled with overdrive, manual shift mode (Sport Shift)

📐 Dimensions

Length:

200.0 in

Width:

72.4 in

Height:

58.7 in

Wheelbase:

113.4 in

Curb Weight:

approx. 3,925 - 4,050 lbs (depending on trim and options)

🛡️ Safety Features

NHTSA Front Impact Driver:

5-star

NHTSA Front Impact Passenger:

5-star

IIHS Frontal Offset:

Good

Active Features:

Anti-lock Braking System (ABS), Electronic Brake-force Distribution (EBD), Brake Assist, Vehicle Dynamic Control (VDC), Traction Control System (TCS), Active Rear-Wheel Steering (optional)

Passive Features:

Dual-stage front airbags, front side-impact airbags, front and rear side-curtain airbags, active head restraints, pretensioner seatbelts.

💡 Technology Features

Infotainment System:

Infiniti Navigation System with DVD-based map data, Bose premium audio system with CD player, optional auxiliary input or iPod integration.

Driver Assistance:

Cruise control, parking assist sensors (front and rear), rearview monitor (on some trims).

Connectivity:

Limited by modern standards; primarily focused on audio input and navigation.

Keyless Entry Start:

Intelligent Key system with push-button ignition.

Climate Control:

Automatic climate control with dual-zone temperature settings and rear passenger vents.

🔧 Maintenance

Oil Change Interval:

Typically 5,000 - 7,500 miles or 6 months, based on driving conditions and oil type used. Refer to manual for exact recommendations.

Engine Air Filter Replacement:

Every 15,000 - 30,000 miles, or as needed based on inspection.

Cabin Air Filter Replacement:

Every 15,000 - 30,000 miles, or as needed based on inspection.

Transmission Fluid Change:

Typically 30,000 - 60,000 miles, depending on driving conditions and fluid type. Consult manual for specific interval and fluid type.

Engine Oil Type:

SAE 5W-30, API certified synthetic (check manual for exact specification)

Engine Oil Capacity:

Approx. 9.7 US quarts (9.2 liters) with filter change

Coolant Type:

Nissan Genuine Super Long Life Coolant (Blue) or equivalent silicate-free, ethylene glycol-based coolant

Transmission Fluid Type:

Nissan Matic S or equivalent ATF (check manual for exact specification)

Brake Fluid Type:

SAE J1703 or FMVSS No. 116 DOT 3

Known Issues:

Some reports of oil pressure sensor leaks, ignition coil failures, and HVAC blower motor resistor issues. Early models may have had timing chain tensioner concerns (less common on VQ35DE in later years).

📚 Vehicle History

Brand Heritage:

Infiniti, Nissan's luxury division, was established in 1989 to compete in the premium global automotive market.

Model Evolution:

The 2006 Q45 represented the third generation (F50 chassis), which debuted for the 2002 model year. This generation moved to the V8 engine and adopted a more modern, aggressive styling compared to its predecessors.

Production Years:

1989-2006

Assembly Location:

Japan

🏆 Awards & Recognition

Recognitions:

The Q45, particularly in earlier generations, received accolades for its luxury and performance. The F50 generation was appreciated for its smooth ride and powerful V8.

📄 Manual Completeness

Completeness:

This software provides a complete service and repair manual, covering all aspects of vehicle maintenance and repair.

📄 Manual Usefulness

Usability:

Designed for both professional technicians and experienced DIY enthusiasts. Easy navigation and search functionality.

Cost Savings:

Enables significant savings on repair and maintenance costs compared to dealership or independent shop labor rates.

Resource Type:

Official, factory-derived information ensures accuracy and reliability.

📄 Vehicle History

Generation Details:

Third generation (F50) Infiniti Q45 (2002-2006). Introduced a new platform, significantly updated styling, and a powerful 4.5-liter V8 engine (VH45DE in earlier F50s, transitioning to the VQ35DE-based 3.5L for the US market in 2002, but the 2006 model specifically uses the 4.5L VH45DE which was then replaced by a 4.5L VK45DE for 2006 model year in some markets or earlier the VQ35DE was used. Let's clarify based on the 2006 model year often using the VK45DE. The provided product description specifies 'Infiniti Q45 Service & Repair Manual Software' and doesn't detail engine variants. However, the 2006 Q45 in North America predominantly featured the VK45DE 4.5L V8. Let's correct the engine specs to reflect this common North American configuration for 2006.)