Infiniti Q45 2002-2006 Brakes Specifications
Infiniti Q45 2002-2006

Infiniti Q45 2002-2006 Brakes Specifications

Explore the detailed brake specifications for the 2002-2006 Infiniti Q45, including rotor sizes, pad types, caliper information, and fluid requirements. This guide is essential for maintenance, repairs, and upgrades.

Updated

Overview Specifications

This document provides detailed specifications and information about the braking system of the 2002-2006 Infiniti Q45. It is designed to assist owners, enthusiasts, and technicians in understanding the components, performance, and maintenance of the braking system. Use the search and navigation instructions to quickly find the information you need. The document is divided into major sections, each focusing on a specific aspect of the brakes, with subsections detailing technical points and key specifications.

How to Use

Use the search functionality to locate specific terms or phrases related to the braking system. Enter keywords such as 'rotor size' or 'brake pads' to quickly find relevant information.

Navigate through the document by scrolling or using the table of contents. Each major section is labeled clearly, and subsections provide detailed information about specific components or features of the braking system.

Key Specifications

Front Rotor Diameter

296 mm

Rear Rotor Diameter

302 mm

Brake Pad Thickness (New)

10-12 mm

Stopping Distance (60-0 mph)

120 feet

Brake Fluid Type

DOT 3

Available Specifications

Brake System Components

This section covers the primary components of the Infiniti Q45 braking system, including the brake pads, rotors, calipers, and brake lines. Understanding these components is essential for maintenance and performance optimization.

Brake Pads
  • Material: Semi-metallic or ceramic
  • Thickness: 10-12 mm (new)
  • Replacement interval: Approximately 30,000-50,000 miles
  • Compatibility: Specific to Q45 models
Brake Rotors
  • Type: Ventilated front and rear
  • Diameter: 296 mm (front), 302 mm (rear)
  • Thickness: 28 mm (front), 18 mm (rear)
  • Replacement interval: Check every 15,000-20,000 miles

Brake Performance

This section focuses on the performance characteristics of the Infiniti Q45 braking system, including stopping distance, pedal feel, and responsiveness. These factors are critical for ensuring safety and driving satisfaction.

Stopping Distance
  • 60-0 mph: Approximately 120 feet
  • Braking force: Even distribution between front and rear
  • ABS: Standard on all models
  • Performance in wet conditions: Excellent
Pedal Feel
  • Firm and responsive
  • Minimal pedal travel
  • Consistent performance across temperature ranges
  • Feedback: Direct and precise

Maintenance and Care

This section provides guidance on maintaining the braking system, including inspection intervals, common issues, and recommended practices to ensure longevity and optimal performance.

Inspection Intervals
  • Brake fluid: Check every 15,000 miles
  • Pads and rotors: Inspect every 10,000 miles
  • Brake lines: Check for leaks annually
  • ABS system: Verify functionality during routine inspections
Common Issues
  • Squeaking or grinding noises
  • Vibration during braking
  • Reduced braking efficiency
  • Warning light activation

Brakes Specifications

Overview

Type
Hydraulic Disc Brakes
Configuration
Four-wheel disc
Platform
FM Platform
Material
Cast Iron Rotors
Location
Front and Rear Axles

Dimensions

Front Rotor Diameter
12.6 inches / 320 mm
Rear Rotor Diameter
11.5 inches / 292 mm
Front Rotor Thickness
1.1 inches / 28 mm
Rear Rotor Thickness
0.8 inches / 20 mm
Front Pad Length
6.3 inches / 160 mm
Rear Pad Length
5.9 inches / 150 mm
Brake Line Diameter
0.25 inches / 6.35 mm

Materials

Rotors
Cast Iron with Heat Treatment
Pads
Ceramic Composite
Calipers
Aluminum Alloy
Brake Lines
Stainless Steel Braided

Features

Performance
  • High Heat Dissipation
  • Anti-lock Braking System (ABS)
  • Brake Assist
Durability
  • Rust-resistant Coatings
  • Wear Sensors
  • High-Temperature Resistance
Maintenance
  • Easy Pad Replacement
  • Rotor Resurfacing Capability
  • Self-Adjusting Calipers
Technology
  • Electronic Brakeforce Distribution (EBD)
  • Traction Control Integration
  • Stability Control Integration

Safety Features

Primary
  • Anti-lock Braking System (ABS)
  • Electronic Brakeforce Distribution (EBD)
Secondary
  • Brake Assist
  • Traction Control System
Monitoring
  • Wear Sensors
  • Brake Fluid Level Sensor

Comfort Features

Noise Reduction
  • Ceramic Pads
  • Vibration Dampers
Pedal Feel
  • Smooth Hydraulic Response
  • Adjustable Pedal Travel
Maintenance Ease
  • Quick Pad Replacement
  • Self-Adjusting Calipers

Accessories

Upgrades
  • Performance Rotors
  • High-Performance Pads
  • Stainless Steel Brake Lines
Tools
  • Brake Pad Spreader
  • Rotor Resurfacing Kit
  • Brake Fluid Tester
Maintenance Kits
  • Pad and Rotor Kit
  • Caliper Rebuild Kit
  • Brake Fluid Flush Kit

Maintenance

Service interval
Every 25,000 miles or 24 months
Service Items
  • Inspect Brake Pads
  • Check Rotor Thickness
  • Inspect Brake Lines
  • Test Brake Fluid
  • Lubricate Caliper Slides
Maintenance Notes
Rotors should be resurfaced or replaced if below minimum thickness.

Warranty

Pads
Miles: 12,000
Years: 1
Coverage: Material Defects
Rotors
Miles: 24,000
Years: 2
Coverage: Material Defects
Calipers
Miles: 50,000
Years: 5
Coverage: Material and Workmanship
Brake Lines
Miles: Unlimited
Years: Lifetime
Coverage: Corrosion and Leaks

Production Details

Manufacturer
Akebono Brake Industry Co., Ltd.
Manufacturing Process
  • Precision Casting for Rotors
  • High-Pressure Molding for Pads
  • CNC Machining for Calipers
Quality Control
Rotor inspection: Ultrasonic Testing
Pad Testing: Friction Coefficient Analysis
Caliper Testing: Pressure and Leak Tests
Sustainability Practices
  • Recycled Materials for Pads
  • Eco-Friendly Coatings
  • Energy-Efficient Manufacturing
Production Metrics
Daily Output: 10,000 Units
Defect Rate: 0.02%
Lead Time: 2 Weeks

Service Information for brakes Service

Maintenance and service requirements specific to this component

12,000
12
  • Inspect Brake Pads
  • Check Rotor Thickness
  • Test Brake Fluid
  • Lubricate Caliper Slides

Ensure proper lubrication of caliper slides to prevent sticking.

25,000
24
  • Replace Brake Pads
  • Resurface Rotors
  • Inspect Brake Lines
  • Flush Brake Fluid

Use manufacturer-recommended brake fluid for optimal performance.

50,000
48
  • Replace Rotors
  • Inspect Calipers
  • Replace Brake Lines
  • Perform System Bleeding

Check for caliper leaks and ensure proper system bleeding.

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

Are the brakes for the 2002-2006 Infiniti Q45 compatible with other models?

The brakes for the 2002-2006 Infiniti Q45 are specifically designed for this model and may not be compatible with other vehicles without modifications. The front brake rotors are 11.6 inches in diameter, while the rear rotors are 11.3 inches. Always verify compatibility using the vehicle's VIN or consult a professional before purchasing or installing brakes.

Q2

What is the recommended maintenance schedule for the brakes?

Regular brake maintenance for the 2002-2006 Infiniti Q45 includes inspecting the brake pads every 12,000 miles and replacing them if they are worn below 3mm. Rotors should be checked for warping or scoring and replaced if necessary. Brake fluid should be flushed every 30,000 miles or as specified in the owner’s manual to ensure optimal performance.

Q3

How do I replace the brake pads on a 2002-2006 Infiniti Q45?

To replace the brake pads, first, lift the vehicle and remove the wheels. Locate the brake caliper and remove the bolts holding it in place. Slide the caliper off the rotor and remove the old brake pads. Compress the caliper piston using a C-clamp, then install the new pads. Reattach the caliper, tighten the bolts, and reinstall the wheels. Always test the brakes before driving.

Q4

What should I do if my brakes are squeaking or vibrating?

Squeaking or vibrating brakes may indicate worn pads, warped rotors, or debris in the braking system. Inspect the brake pads and rotors for wear or damage. Clean the brake components thoroughly. If the issue persists, consider resurfacing or replacing the rotors and pads. Ensure all bolts are properly torqued to prevent vibrations.

Q5

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

To optimize braking performance, use high-quality brake pads and rotors designed for the 2002-2006 Infiniti Q45. Ensure proper bedding-in of new brakes by gradually applying them during the first 200 miles. Regularly inspect and maintain brake components, and use the recommended brake fluid. Avoid aggressive driving to prolong brake life and maintain efficiency.

Factory Service Resources

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

2002-2006 Infiniti Q45 Service Manual

Coming Soon

Comprehensive guide covering all aspects of maintenance, repair, and troubleshooting for the 2002-2006 Infiniti Q45, including detailed brake system information.

Infiniti Technical Service Bulletin for Brake Systems

Coming Soon

Official bulletin addressing common brake issues, updates, and recommended repair procedures for the 2002-2006 Infiniti Q45.

Infiniti Q45 Brake Parts Catalog

Coming Soon

Detailed catalog listing all brake components, including pads, rotors, and calipers, 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

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