Subaru Subaru Legacy 2004-2008 Brakes Specifications
Explore the detailed brake specifications for the 2004-2008 Subaru Legacy, including pad sizes, rotor dimensions, and caliper types. Perfect for maintenance, upgrades, and repairs.
Overview Specifications
This document provides detailed specifications and technical information about the braking system of the 2004-2008 Subaru Legacy. It is designed to assist owners, mechanics, and enthusiasts in understanding the brake components, maintenance requirements, and performance characteristics. Use the search and navigation instructions to quickly find relevant information or explore sections for in-depth details.
How to Use
Use the search bar to enter keywords like 'brake pads,' 'rotors,' or 'calipers' to locate specific information. The search results will highlight relevant sections and subsections.
Scroll through the document or use the table of contents to jump to major sections. Each section is divided into subsections with detailed technical points for easy reference.
Key Specifications
Front Rotor Diameter
294 mm
Rear Rotor Diameter
290 mm
Brake Fluid Type
DOT 3/DOT 4
Brake Pad Thickness (New)
10-12 mm
Brake Fluid Capacity
0.5-0.6 liters
Available Specifications
Front Brakes
This section covers the front braking system of the 2004-2008 Subaru Legacy, including brake pads, rotors, and calipers. It provides details on dimensions, materials, and maintenance intervals.
Front Brakes
This section covers the front braking system of the 2004-2008 Subaru Legacy, including brake pads, rotors, and calipers. It provides details on dimensions, materials, and maintenance intervals.
Brake Pads
- Material: Semi-metallic or ceramic
- Thickness (new): 10-12 mm
- Minimum thickness: 2 mm
- Replacement interval: 30,000-50,000 miles
Brake Rotors
- Type: Ventilated discs
- Diameter: 294 mm
- Thickness (new): 24 mm
- Minimum thickness: 22 mm
Brake Calipers
- Type: Single-piston floating
- Material: Aluminum
- Bolt torque: 25-30 Nm
- Inspection interval: Every 15,000 miles
Rear Brakes
This section details the rear braking system, including drum or disc brake configurations, depending on the model. It provides specifications for brake shoes, rotors, and calipers.
Rear Brakes
This section details the rear braking system, including drum or disc brake configurations, depending on the model. It provides specifications for brake shoes, rotors, and calipers.
Brake Shoes (Drum Models)
- Material: Organic or semi-metallic
- Thickness (new): 4-5 mm
- Minimum thickness: 1 mm
- Replacement interval: 40,000-60,000 miles
Brake Rotors (Disc Models)
- Type: Solid discs
- Diameter: 290 mm
- Thickness (new): 10 mm
- Minimum thickness: 8 mm
Brake Calipers (Disc Models)
- Type: Single-piston floating
- Material: Aluminum
- Bolt torque: 25-30 Nm
- Inspection interval: Every 15,000 miles
Brake Fluid
This section provides information on the brake fluid used in the 2004-2008 Subaru Legacy, including type, capacity, and replacement intervals.
Brake Fluid
This section provides information on the brake fluid used in the 2004-2008 Subaru Legacy, including type, capacity, and replacement intervals.
Fluid Type
- DOT 3 or DOT 4
- Boiling point (dry): 205°C (DOT 3), 230°C (DOT 4)
- Boiling point (wet): 140°C (DOT 3), 155°C (DOT 4)
Fluid Capacity
- Total system capacity: 0.5-0.6 liters
- Reservoir capacity: 0.2 liters
Replacement Interval
- Every 2 years or 30,000 miles
- Inspect for contamination annually
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Brakes Specifications
Overview
- Type
- Hydraulic disc brakes
- Configuration
- Front and rear disc brakes
- Platform
- Subaru Legacy 2004-2008
- Material
- Cast iron rotors with semi-metallic pads
- Location
- Wheel hubs
Dimensions
- Front Rotor Diameter
- 11.6 inches / 294.6 mm
- Rear Rotor Diameter
- 11.3 inches / 287 mm
- Front Rotor Thickness
- 0.98 inches / 25 mm
- Rear Rotor Thickness
- 0.39 inches / 10 mm
- Pad Thickness New
- 0.47 inches / 12 mm
- Pad Thickness Min
- 0.12 inches / 3 mm
- Caliper Piston Diameter
- 2.36 inches / 60 mm
- Brake Line Diameter
- 0.31 inches / 8 mm
Materials
- Rotors
- Cast iron with anti-corrosion coating
- Brake Pads
- Semi-metallic friction material
- Calipers
- Aluminum alloy
- Brake Lines
- Reinforced rubber with steel braiding
Features
- Performance
-
- ABS (Anti-lock Braking System)
- EBD (Electronic Brakeforce Distribution)
- High thermal capacity rotors
- Low-noise brake pads
- Durability
-
- Corrosion-resistant rotors
- Heat-treated calipers
- Long-lasting pad material
- Safety
-
- Automatic brake force adjustment
- Emergency brake assist
- Pedal feel optimization
- Maintenance
-
- Wear indicators on brake pads
- Easy-access caliper design
- Replaceable brake lines
- Environmental
-
- Low-dust brake pads
- Recyclable rotor materials
- Eco-friendly manufacturing
Safety Features
- Active Safety
-
- ABS prevents wheel lock-up
- EBD optimizes braking force
- Passive Safety
-
- Heat-resistant materials
- Corrosion protection
- Emergency Features
-
- Emergency brake assist
- Automatic brake force distribution
Comfort Features
- Noise Reduction
-
- Low-noise pad material
- Vibration dampening
- Pedal Feel
-
- Optimized pedal travel
- Consistent braking response
- Maintenance Ease
-
- Wear indicators
- Easy-access components
- Environmental
-
- Low dust emission
- Recyclable materials
Accessories
- Upgrades
-
- Performance brake pads
- Slotted rotors
- Stainless steel brake lines
- Maintenance Kits
-
- Brake pad replacement kit
- Caliper service kit
- Brake fluid flush kit
- Tools
-
- Brake piston tool
- Rotor micrometer
- Brake bleeder kit
Maintenance
- Service interval
- Every 30,000 miles or 24 months
- Service Items
-
- Inspect brake pad thickness
- Check rotor condition
- Test brake fluid quality
- Inspect brake lines for leaks
- Verify ABS functionality
- Maintenance Notes
- Replace brake fluid every 2 years or 30,000 miles
Warranty
- Parts Warranty
- Miles: 36,000Years: 3Coverage: Brake pads and rotors
- Labor Warranty
- Miles: 12,000Years: 1Coverage: Brake system labor
- Corrosion Warranty
- Miles: UnlimitedYears: 5Coverage: Rotor corrosion
- Accessories Warranty
- Miles: 12,000Years: 1Coverage: Aftermarket brake components
Production Details
- Manufacturer
- Subaru Corporation
- Manufacturing Process
-
- Precision casting for rotors
- CNC machining for calipers
- Automated assembly
- Quality Control
- Rotor inspection: 100% dimensional checkPad Testing: Friction coefficient verificationCaliper Testing: Pressure and leak testing
- Sustainability Practices
-
- Recycled materials in brake pads
- Energy-efficient manufacturing
- Waste reduction programs
- Production Metrics
- Annual Output: 500,000 unitsDefect Rate: 0.01%Energy Usage: 15 kWh per unit
Service Information for brakes Service
Maintenance and service requirements specific to this component
- Inspect brake pad thickness
- Check rotor surface condition
- Test brake fluid moisture content
- Inspect brake lines for wear
- Verify ABS sensor functionality
Replace brake fluid if moisture content exceeds 3%
- Replace brake pads if necessary
- Resurface or replace rotors
- Flush and replace brake fluid
- Inspect caliper slide pins
- Check brake system for leaks
Use only DOT 4 brake fluid
- Complete brake system inspection
- Replace all brake components if necessary
- Test ABS system functionality
- Inspect master cylinder operation
- Verify parking brake adjustment
Consider complete brake system overhaul at this interval
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 Are these brakes compatible with all 2004-2008 Subaru Legacy models?
Are these brakes compatible with all 2004-2008 Subaru Legacy models?
The brakes are compatible with all 2004-2008 Subaru Legacy models, including sedan, wagon, and GT trims. However, ensure you verify the specific trim and engine type, as GT models may require high-performance brake pads and rotors. Always cross-check part numbers with your vehicle's VIN or consult a Subaru dealer for confirmation.
Q2 What is the recommended maintenance schedule for Subaru Legacy brakes?
What is the recommended maintenance schedule for Subaru Legacy brakes?
Subaru recommends inspecting brake pads and rotors every 12,000 miles or annually. Replace brake pads when thickness is below 3mm and rotors if they are warped or below minimum thickness specifications. Brake fluid should be flushed every 30,000 miles or 2 years to maintain optimal performance and safety.
Q3 How do I replace the brake pads on a 2004-2008 Subaru Legacy?
How do I replace the brake pads on a 2004-2008 Subaru Legacy?
To replace brake pads, lift the vehicle and remove the wheels. Unbolt the caliper and hang it securely. Remove old pads, compress the caliper piston, and install new pads. Reassemble the caliper and wheels, then test the brakes before driving. Always torque bolts to manufacturer specifications and bed in new pads as recommended.
Q4 What should I do if my brakes are squeaking or vibrating?
What should I do if my brakes are squeaking or vibrating?
Squeaking may indicate worn pads or debris on the rotor. Inspect and clean the braking system. Vibrations often suggest warped rotors, which require resurfacing or replacement. Check for uneven wear or damage to pads and rotors. If issues persist, consult a professional mechanic for further diagnosis.
Q5 How can I optimize the performance of my Subaru Legacy brakes?
How can I optimize the performance of my Subaru Legacy brakes?
Use high-quality brake pads and rotors designed for your driving style. For performance driving, consider slotted rotors and ceramic pads. Regularly clean brake components to prevent debris buildup. Ensure proper bedding-in of new pads and rotors. Maintain proper tire pressure and alignment to reduce brake strain.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
2004-2008 Subaru Legacy Service Manual
Coming SoonComprehensive guide covering brake system maintenance, repair, and specifications for 2004-2008 Subaru Legacy models.
Subaru Technical Service Bulletin: Brake System Updates
Coming SoonDetails updates and fixes for common brake system issues in 2004-2008 Subaru Legacy models.
Subaru Legacy Brake Parts Catalog
Coming SoonCatalog listing OEM and aftermarket brake parts for 2004-2008 Subaru Legacy models, including pads, rotors, and calipers.
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Technical Information
- All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
- Vehicle specifications and procedures may vary by model year, trim level, and region.
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