Audi Audi S3 2013-present

Audi Audi S3 2013-present Brakes Specifications

Detailed technical specifications for the 2013-Present Audi S3 braking system, including brake components, performance metrics, and maintenance guidelines. Ideal for technicians and enthusiasts.

Updated Oct 24, 2023

Overview Specifications

Comprehensive description of the brakes specifications for the 2013-Present Audi S3, including key features, measurements, and technical details. This section covers the braking system's design, components, and performance metrics to ensure optimal safety and functionality.

How to Use

Use the search function to locate specific brake specifications by entering keywords such as 'rotor diameter', 'caliper type', or 'brake pad material'.

Navigate through the brakes documentation by selecting the relevant section from the table of contents or using the sidebar menu to jump to specific subsections.

Key Specifications

Front Rotor Diameter

340 mm

Rear Rotor Diameter

310 mm

Brake Fluid Type

DOT 4

Front Caliper Type

4-piston fixed

Rear Caliper Type

Single-piston floating

Available Specifications

Front Brake System

Details about the front brake system, including rotor size, caliper type, and brake pad specifications.

Front Brake Rotors

Diameter: 340 mm
Thickness: 30 mm
Material: Ventilated cast iron
Cross-drilled for improved heat dissipation
Weight: 8.2 kg per rotor

Front Brake Calipers

Type: Fixed 4-piston aluminum calipers
Piston diameter: 38 mm
Caliper weight: 2.8 kg
High-performance heat-resistant seals
Compatible with Audi S3 performance upgrades

Note: The front calipers are designed for high thermal stability under aggressive driving conditions.

Rear Brake System

Technical specifications for the rear brake system, including rotor dimensions, caliper design, and brake pad details.

Rear Brake Rotors

Diameter: 310 mm
Thickness: 22 mm
Material: Ventilated cast iron
Solid design for consistent performance
Weight: 6.5 kg per rotor

Rear Brake Calipers

Type: Single-piston floating calipers
Piston diameter: 42 mm
Caliper weight: 1.9 kg
Integrated parking brake mechanism
Corrosion-resistant coating

Note: The rear calipers are optimized for balanced braking force and durability.

Brake Pads

Information about the brake pads used in the Audi S3, including material composition, dimensions, and performance characteristics.

Front Brake Pads

Material: Low-metallic compound
Thickness: 12 mm (new)
Wear limit: 3 mm
Operating temperature range: -40°C to 600°C
Friction coefficient: 0.42

Rear Brake Pads

Material: Ceramic composite
Thickness: 10 mm (new)
Wear limit: 2 mm
Operating temperature range: -40°C to 550°C
Friction coefficient: 0.38

Note: Ceramic rear pads reduce brake dust and provide consistent performance.

Brake Fluid and Hydraulics

Details about the brake fluid specifications and hydraulic system components.

Brake Fluid

Type: DOT 4
Minimum boiling point: 230°C (dry)
Recommended replacement interval: Every 2 years or 30,000 miles
Capacity: 1.0 liter
Compatible with high-performance driving

Hydraulic System

Master cylinder diameter: 22.2 mm
Brake line pressure: 120 bar
ABS and ESC integration
Dual-circuit design for redundancy
Stainless steel brake lines

Note: The hydraulic system is designed for precise brake force distribution and rapid response.

Search Specifications

Search by specification name, value, or description

Brakes Specifications

Brake System Type

Front Brakes: Ventilated disc brakes

Rear Brakes: Solid disc brakes

Brake Assist System: Electronic Brake-force Distribution (EBD) and Anti-lock Braking System (ABS)

Brake Disc Specifications

Front Disc Diameter: 340 mm

Front Disc Thickness: 30 mm

Rear Disc Diameter: 310 mm

Rear Disc Thickness: 22 mm

Disc Material: Cast iron with anti-corrosion coating

Minimum Thickness Front: 28.4 mm

Minimum Thickness Rear: 20.4 mm

Brake Pad Specifications

Front Pad Material: Low-metallic compound

Rear Pad Material: Ceramic compound

Front Pad Thickness New: 12 mm

Rear Pad Thickness New: 10 mm

Minimum Pad Thickness Front: 3 mm

Minimum Pad Thickness Rear: 2 mm

Front Pad Part Number: 8V0698151A

Rear Pad Part Number: 8V0698451B

Brake Caliper Specifications

Front Caliper Type: Fixed 4-piston caliper

Rear Caliper Type: Floating single-piston caliper

Front Caliper Part Number: 8V0615123C

Rear Caliper Part Number: 8V0615423D

Brake Fluid Specifications

Fluid Type: DOT 4

Fluid Capacity: 1.0 liter

Fluid Change interval: Every 2 years or 30,000 miles

Fluid Boiling Point Min: 230°C (446°F)

Fluid Boiling Point Wet: 155°C (311°F)

Brake Hydraulic System

Master Cylinder Diameter: 22.22 mm

Brake Line Pressure: 120 bar

Brake Booster Type: Vacuum-assisted

Booster Diameter: 9 inches

Brake System Tolerances

Disc Runout Max Front: 0.05 mm

Disc Runout Max Rear: 0.05 mm

Pad Wear indicator Threshold: 2 mm

Brake Pedal Free Play: 5-10 mm

Brake Pedal Reserve Distance: 70 mm

Brake System Operational Limits

Maximum Brake Temperature: 600°C (1112°F)

Maximum Deceleration: 1.2 g

Brake Fade Resistance: Up to 300°C (572°F) continuous use

Emergency Braking Distance: 35 meters from 100 km/h (62 mph)

Brake System Diagnostics

ABS Sensor Type: Active magnetic sensor

ABS Sensor Air Gap: 0.3-1.1 mm

Fault Codes

C101D - Brake Pressure Sensor Fault
C1021 - ABS Pump Motor Fault
C1032 - Wheel Speed Sensor Fault

Diagnostic Tool Required: VAS 5054A or equivalent

Brake System Maintenance

Pad Replacement interval: Every 30,000-50,000 miles

Disc Replacement interval: Every 60,000-80,000 miles

Brake Fluid Flush interval: Every 2 years or 30,000 miles

Caliper Slide Pin Lubrication Interval: Every 15,000 miles

Brake System inspection Interval: Every 10,000 miles

Service Information Service

Detailed service requirements and schedules for the Audi S3 brake system

10,000 miles

12 months

Inspect brake pads and discs for wear
Check brake fluid level and condition
Lubricate caliper slide pins

Ensure all components are free from corrosion and debris

30,000 miles

24 months

Replace brake fluid
Inspect brake lines and hoses for leaks or damage
Check ABS system functionality

Use only Audi-approved DOT 4 brake fluid

60,000 miles

48 months

Replace brake discs if below minimum thickness
Replace brake pads if below minimum thickness
Inspect brake calipers for proper operation

Replace discs and pads in axle pairs to ensure even braking

Frequently Asked Questions

Find answers to common questions about torque specifications

What type of brake system does the 2013-Present Audi S3 use?

The 2013-Present Audi S3 is equipped with a dual-circuit hydraulic brake system with electronic brake-force distribution (EBD) and an anti-lock braking system (ABS). The front brakes are ventilated discs measuring 340 mm in diameter, while the rear brakes are solid discs measuring 310 mm in diameter.

What is the recommended brake pad replacement interval for the Audi S3?

The recommended brake pad replacement interval for the Audi S3 is typically between 30,000 to 70,000 miles, depending on driving conditions and habits. However, it is crucial to regularly inspect the brake pads for wear and replace them if the thickness is less than 3 mm.

Can I upgrade the brake system on my Audi S3 for better performance?

Yes, the Audi S3 can be upgraded with high-performance brake systems, such as larger diameter discs, multi-piston calipers, and performance brake pads. Audi offers an optional S Performance brake package, which includes 362 mm front discs and 310 mm rear discs, along with red-painted calipers for enhanced stopping power.

What is the procedure for bleeding the brake system on the Audi S3?

To bleed the brake system on the Audi S3, follow these steps: 1) Ensure the brake fluid reservoir is filled to the maximum level. 2) Connect a brake bleeder tool to the brake caliper bleeder valve. 3) Open the bleeder valve and pump the brake pedal until air bubbles are no longer visible in the fluid. 4) Close the bleeder valve and repeat the process for all four wheels, starting from the wheel farthest from the master cylinder (rear right, rear left, front right, front left). Use only Audi-approved brake fluid, such as DOT 4.

How do I reset the brake pad wear indicator on the Audi S3?

To reset the brake pad wear indicator on the Audi S3, follow these steps: 1) Turn the ignition to the 'ON' position without starting the engine. 2) Navigate to the 'Service' menu using the steering wheel controls. 3) Select 'Brake Pads' and then 'Reset.' 4) Confirm the reset by pressing the 'OK' button. The brake pad wear indicator should now be reset.

Factory Service Resources

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

Audi S3 Brake System Overview

Coming Soon

Detailed overview of the Audi S3 brake system, including specifications, maintenance tips, and performance upgrades.

Brake Pad Replacement Guide

Coming Soon

Step-by-step guide on how to replace brake pads on the Audi S3, including tools needed and safety precautions.

Brake Fluid Flush and Bleeding Procedure

Coming Soon

Comprehensive guide on how to perform a brake fluid flush and bleeding procedure on the Audi S3, including recommended fluids and tools.

Audi S3 Performance Brake Upgrades

Coming Soon

Information on available performance brake upgrades for the Audi S3, including OEM and aftermarket options.

About the Author

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