Infiniti Q45 2002-2006 Suspension Specifications
Infiniti Q45 2002-2006

Infiniti Q45 2002-2006 Suspension Specifications

Explore detailed suspension specifications for the 2002-2006 Infiniti Q45, including shock absorbers, struts, springs, and alignment settings. This guide is essential for maintenance, repair, and performance upgrades.

Updated

Overview Specifications

This document provides detailed specifications and technical information about the suspension system of the 2002-2006 Infiniti Q45. It is designed to assist automotive enthusiasts, mechanics, and owners in understanding the components, features, and maintenance of the vehicle's suspension. Use the search and navigation instructions to quickly locate specific details or explore the sections for comprehensive insights.

How to Use

Use the search feature to find specific suspension components or technical terms. Enter keywords like 'shock absorbers' or 'spring rates' to quickly locate relevant information.

Browse through the major sections to explore different aspects of the suspension system. Click on subsection titles to view detailed technical points and specifications.

Key Specifications

Front Spring Rate

2.8 kg/mm

Rear Spring Rate

3.2 kg/mm

Shock Travel (Front)

150 mm

Shock Travel (Rear)

140 mm

Curb Weight

1,830 kg

Available Specifications

Front Suspension

The front suspension system of the 2002-2006 Infiniti Q45 is designed to provide a balance of comfort and performance. It includes advanced components to ensure smooth handling and stability.

Shock Absorbers
  • Gas-filled twin-tube design
  • Integrated coil springs for stability
  • Damping force optimized for comfort
  • Corrosion-resistant materials
  • Easy replacement process
  • Compatible with aftermarket upgrades
Control Arms
  • Forged aluminum construction
  • Double-wishbone configuration
  • Rubber bushings for noise reduction
  • Precise wheel alignment capabilities
  • Durable ball joints
  • Designed for minimal maintenance

Rear Suspension

The rear suspension system complements the front setup, ensuring a smooth and controlled ride. It features robust components to handle varying road conditions.

Multi-Link Setup
  • Independent suspension design
  • Five-link configuration for stability
  • Adjustable camber and toe settings
  • Enhanced cornering performance
  • Lightweight components
  • Compatible with towing packages
Springs and Dampers
  • Progressive rate coil springs
  • Hydraulic shock absorbers
  • Self-leveling feature for heavy loads
  • Optimized for ride comfort
  • High-temperature resistance
  • Easy to inspect and replace

Steering and Alignment

The steering and alignment system works in harmony with the suspension to provide precise control and responsive handling.

Steering Gear
  • Rack-and-pinion design
  • Hydraulic power steering system
  • Variable assist for low-speed maneuverability
  • Durable seals and bearings
  • Minimal steering lag
  • Compatible with alignment adjustments
Alignment Specifications
  • Camber: -0.5° to +0.5°
  • Caster: +3.5° to +4.5°
  • Toe-in: 0.05° to 0.15°
  • Adjustable rear toe settings
  • Factory-recommended alignment intervals
  • Tools required for DIY alignment

Component Specifications

Overview

Type
Independent Multi-Link
Configuration
Front and Rear
Platform
FM Platform
Material
High-Strength Steel
Location
Underbody

Dimensions

Front Track Width
60.6 in (1539 mm)
Rear Track Width
60.2 in (1529 mm)
Wheelbase
113.4 in (2880 mm)
Front Spring Length
12.2 in (310 mm)
Rear Spring Length
13.8 in (350 mm)
Shock ABSorber Length
20.1 in (510 mm)
Stabilizer Bar Diameter Front
1.1 in (28 mm)
Stabilizer Bar Diameter Rear
0.9 in (23 mm)

Materials

Control Arms
Forged Aluminum
Springs
Chromium-Silicon Alloy
Shock ABSorbers
Nickel-Plated Steel
Stabilizer Bar
Heat-Treated Steel
Bushings
Polyurethane

Features

Performance
  • Adjustable Dampers
  • Active Suspension System
  • Sport-Tuned Springs
Handling
  • Precision Steering
  • Enhanced Cornering Stability
  • Reduced Body Roll
Durability
  • Corrosion-Resistant Components
  • Reinforced Joints
  • Long-Lasting Bushings
Technology
  • Electronic Suspension Control
  • Real-Time Damping Adjustment
  • Integrated Stability Management
Comfort
  • Smooth Ride Quality
  • Noise Reduction
  • Vibration Dampening

Safety Features

Stability
  • Electronic Stability Control
  • Anti-Roll Protection
Braking
  • Integrated Brake Assist
  • Enhanced Traction Control
Structural
  • Crash-Resistant Design
  • Reinforced Mounting Points

Comfort Features

Ride Quality
  • Adaptive Suspension
  • Comfort Mode Setting
Noise Isolation
  • Acoustic Insulation
  • Vibration Absorbers
Adjustability
  • Height Adjustment
  • Damping Control
Climate Adaptability
  • Cold-Weather Performance
  • Heat-Resistant Components

Accessories

Upgrades
  • Performance Springs
  • Adjustable Coilovers
  • Heavy-Duty Sway Bars
Maintenance
  • Replacement Bushings
  • Shock Absorber Kits
  • Suspension Mounts
Tools
  • Alignment Tools
  • Torque Wrenches
  • Spring Compressors

Maintenance

Service interval
Every 30,000 miles or 24 months
Service Items
  • Inspect Bushings
  • Check Shock Absorbers
  • Lubricate Joints
  • Tighten Mounting Bolts
  • Align Suspension
Maintenance Notes
Regular inspection and lubrication are crucial for optimal performance.

Warranty

Basic
Miles: 36,000
Years: 3
Coverage: Parts and Labor
Powertrain
Miles: 60,000
Years: 5
Coverage: Suspension Components
Corrosion
Miles: Unlimited
Years: 7
Coverage: Rust Protection
Roadside Assistance
Miles: Unlimited
Years: 3
Coverage: Towing and Repairs

Production Details

Manufacturer
Nissan Motor Co., Ltd.
Manufacturing Process
  • Precision Casting
  • Robotic Assembly
  • Quality Testing
Quality Control
inspection: 100% Component Testing
Standards: ISO 9001 Certified
Testing: Durability and Performance Validation
Sustainability Practices
  • Recycled Materials
  • Energy-Efficient Production
  • Waste Reduction
Production Metrics
Annual Output: 50,000 Units
Defect Rate: 0.1%
Lead Time: 30 Days

Service Information for suspension Service

Maintenance and service requirements specific to this component

30,000
24
  • Inspect Bushings
  • Check Shock Absorbers
  • Lubricate Joints
  • Tighten Mounting Bolts
  • Align Suspension

Regular inspection ensures optimal performance and safety.

60,000
48
  • Replace Bushings
  • Inspect Springs
  • Check Stabilizer Bar
  • Test Electronic Suspension Control
  • Verify Alignment

Use manufacturer-recommended parts for replacements.

100,000
84
  • Overhaul Suspension System
  • Replace Shock Absorbers
  • Inspect Mounting Points
  • Test Ride Quality
  • Verify Safety Features

Professional service is recommended for major overhauls.

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What suspension components are compatible with the 2002-2006 Infiniti Q45?

The 2002-2006 Infiniti Q45 suspension system is compatible with specific OEM and aftermarket components, including struts, shocks, control arms, and bushings. OEM parts ensure exact fit and performance, while aftermarket options may offer enhanced durability or custom tuning. Always verify compatibility using part numbers or consult with a professional to ensure proper fitment and functionality for your vehicle.

Q2

What maintenance is required for the Infiniti Q45 suspension system?

Regular maintenance for the Infiniti Q45 suspension includes inspecting struts, shocks, and bushings for wear every 50,000 miles. Check for leaks, cracks, or unusual noises during routine service. Lubricate suspension components as needed and ensure proper wheel alignment to prevent uneven tire wear. Timely replacement of worn parts is crucial to maintain ride quality and safety.

Q3

How do I replace the suspension struts on a 2002-2006 Infiniti Q45?

To replace suspension struts, safely lift the vehicle and remove the wheels. Disconnect the sway bar link and brake line bracket. Unbolt the strut assembly from the steering knuckle and remove it from the vehicle. Compress the spring using a spring compressor, then transfer components to the new strut. Reassemble in reverse order, ensuring all bolts are torqued to factory specifications.

Q4

What are common suspension issues in the Infiniti Q45 and how can I troubleshoot them?

Common issues include worn struts, noisy bushings, and uneven ride height. Diagnose by inspecting for leaks, cracks, or loose components. Test ride quality and listen for clunking or squeaking noises. Check alignment and tire wear for signs of suspension problems. Replace worn parts and ensure proper installation to resolve these issues.

Q5

How can I optimize the performance of my Infiniti Q45 suspension?

Optimize performance by upgrading to high-performance struts and shocks, which offer better damping and control. Use polyurethane bushings for improved durability and responsiveness. Ensure proper alignment and balance, and consider lowering springs or coilovers for enhanced handling. Regularly inspect and maintain components to ensure peak performance.

Factory Service Resources

Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.

Infiniti Q45 Service Manual

Coming Soon

Comprehensive guide covering maintenance, repair, and specifications for the 2002-2006 Infiniti Q45.

Suspension Technical Bulletin for Infiniti Q45

Coming Soon

Provides updates and solutions for common suspension issues in the 2002-2006 Infiniti Q45.

Infiniti Q45 Parts Catalog

Coming Soon

Detailed catalog of OEM and aftermarket suspension parts for the 2002-2006 Infiniti Q45.

About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

ASE Master Certified Technician with over a decade of hands-on experience in automotive repair and diagnostics.

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