Audi Audi A4 2017-present Brakes Specifications
Detailed technical specifications and maintenance guidelines for the 2017-Present Audi A4 brakes system, including ABS, ESC, brake pads, rotors, and calipers.
2017-Present Audi A4 Brake Specifications Overview Specifications
This document provides a detailed overview of the brake specifications for the 2017-Present Audi A4. It includes technical details, components, and performance metrics. Use this guide to understand the braking system, its components, and key specifications. Navigate through the sections to find specific information or use the quick reference for key metrics.
How to Use
To find specific information, use the search functionality by typing keywords related to the brake system (e.g., 'rotor size', 'brake fluid').
Navigate through the sections by scrolling or using the table of contents. Each section provides detailed information on specific aspects of the brake system.
Key Specifications
Front Rotor Diameter
330 mm
Rear Rotor Diameter
300 mm
100-0 km/h Stopping Distance
Approx. 36 meters
Brake Fluid Type
DOT 4
Brake Booster Type
Vacuum-assisted
Available Specifications
Brake System Overview
The Audi A4 features a robust braking system designed for optimal performance and safety. This section provides an overview of the system's architecture and key components.
Brake System Overview
The Audi A4 features a robust braking system designed for optimal performance and safety. This section provides an overview of the system's architecture and key components.
Brake System Components
- Dual-circuit braking system with diagonal split
- Electronic Brakeforce Distribution (EBD)
- Anti-lock Braking System (ABS)
- Electromechanical parking brake
- Brake assist system
Brake Types
- Front: Ventilated disc brakes
- Rear: Solid disc brakes
- Optional: Audi Sport brake package with larger rotors
Brake Components and Materials
This section details the specifications of individual brake components, including materials and dimensions.
Brake Components and Materials
This section details the specifications of individual brake components, including materials and dimensions.
Front Brake Specifications
- Rotor diameter: 330 mm (12.99 in)
- Rotor thickness: 32 mm (1.26 in)
- Caliper type: Floating caliper
- Piston count: 4-piston front calipers (optional: 6-piston on Sport package)
Rear Brake Specifications
- Rotor diameter: 300 mm (11.81 in)
- Rotor thickness: 28 mm (1.10 in)
- Caliper type: Floating caliper
- Piston count: 2-piston rear calipers
Brake Performance and Capabilities
This section outlines the performance metrics and capabilities of the Audi A4 braking system.
Brake Performance and Capabilities
This section outlines the performance metrics and capabilities of the Audi A4 braking system.
Braking Performance
- 100-0 km/h (62-0 mph) stopping distance: approximately 36 meters (118 feet)
- Deceleration: Up to 1.0g
- Wet braking performance optimized with specialized pad material
- Fade resistance: Enhanced by ventilated front rotors
Brake Maintenance and Service
This section provides guidance on maintaining and servicing the brake system for optimal performance.
Brake Maintenance and Service
This section provides guidance on maintaining and servicing the brake system for optimal performance.
Service Intervals
- Brake fluid change: Every 2 years or 30,000 miles
- Brake pad inspection: Every 12,000 miles
- Rotor inspection: Every 18,000 miles
- Parking brake maintenance: Every 12,000 miles
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Brakes Specifications
Overview
- Type
- Dual-circuit braking system with diagonal split
- Configuration
- Front and rear disc brakes
- Platform
- MLB (Modular Longitudinal Matrix) platform
- Material
- Cast iron front rotors, composite rear rotors
- Location
- Front: 5-arm suspension, Rear: Trapezoidal-link suspension
Dimensions
- Front Rotor Diameter
- 13.8 in (350 mm)
- Front Rotor Thickness
- 1.26 in (32 mm)
- Rear Rotor Diameter
- 12.8 in (325 mm)
- Rear Rotor Thickness
- 0.87 in (22 mm)
- Front Brake Pad Thickness
- 0.47 in (12 mm)
- Rear Brake Pad Thickness
- 0.35 in (9 mm)
Materials
- Front Rotors
- Cast iron with internal ventilation
- Rear Rotors
- Composite (steel and aluminum)
- Brake Pads
- Semi-metallic with low-metallic formulation
- Calipers
- Aluminum alloy
- Brake Lines
- Steel-reinforced rubber hoses
Features
- Performance
-
- Internally ventilated front discs
- Cross-drilled front rotors for heat dissipation
- Floating rear calipers
- Adaptive brake assist
- Electronic brake force distribution
- Thermal Management
-
- Directional cooling vanes
- Rotors designed for optimal heat transfer
- Aero-optimized brake cooling ducts
- Control Systems
-
- Electronic Stability Control (ESC)
- Anti-lock Braking System (ABS)
- Traction Control System (TCS)
- Electronic Differential Lock (EDL)
- Wear indicators
-
- Audible wear sensors on brake pads
- Visual wear indicators on rear pads
- CAN-bus communication for pad life monitoring
- Pedal Feel
-
- Progressive pedal response
- Hydraulically assisted brake booster
- Electrically assisted pedal feel simulation
Safety Features
- ABS
-
- Four-channel ABS with electronic brake force distribution
- Advanced traction control integration
- Emergency Braking
-
- Automatic emergency braking (AEB)
- Pre-sense braking system
- Collision mitigation braking
- Stability Control
-
- Electronic stability control (ESC)
- -roll stabilization
- Torque vectoring through braking
Comfort Features
- Noise Reduction
-
- Acoustic damping brake pads
- Anti-vibration shim plates
- Sound-insulating brake covers
- Pedal Comfort
-
- Adjustable brake pedal height
- Soft-touch pedal surface
- Progressive pedal travel
- Convenience
-
- Auto-hold function
- Hill descent control
- Electronic parking brake with auto-release
Accessories
- Upgrade Options
-
- High-performance brake pads (e.g., Audi Sport)
- Cross-drilled and slotted rotors
- Ceramic brake pads for reduced dust
- Brake Fluid
-
- Audi-approved DOT 4 LV (low viscosity)
- Synthetic brake fluid for improved performance
- Hardware
-
- Stainless steel brake lines
- Lightweight aluminum calipers
- Brake cooling kits
Maintenance
- Service interval
-
- Brake fluid change every 30,000 miles
- Brake pad inspection every 15,000 miles
- Rotor inspection every 30,000 miles
- Brake line inspection every 60,000 miles
- Caliper service every 60,000 miles
- Maintenance Notes
-
- Use Audi-approved brake fluid
- Replace pads and rotors together if worn
- Clean brake components with approved solvents
- Bleed brakes after fluid change
Warranty
- New Vehicle
- Miles: UnlimitedYears: 12Coverage: No cost for repairs due to manufacturing defects
- Wear Items
- Miles: 12,000Years: 1Coverage: Brake pads and rotors (wear and tear)
- Extended
- Miles: 100,000Years: 10Coverage: Extended brake component coverage
- Certified Pre-Owned
- Miles: UnlimitedYears: 6Coverage: Brake system repairs for certified vehicles
Production Details
- Manufacturer
- Name: Audi AGLocation: Ingolstadt, GermanyQuality Standard: ISO/TS 16949:2002
- Manufacturing Process
-
- High-precision machining of rotors
- Robotic assembly of brake components
- Laser-cutting of brake lines
- Cathodic dip painting for corrosion protection
- Quality Control
- inspection: Details: 100% end-of-line inspection, Criteria: Dimensional accuracy, surface finish, material integrityTesting: Details: Functional testing of braking system, Criteria: Stopping distance, pedal feel, noise levels
- Sustainability Practices
- Recycling: Recyclable materials used in brake componentsEnergy Efficiency: Energy-efficient manufacturing processesEmissions Reduction: Low-emission production techniques
- Production Metrics
- Annual Production: Over 1 million unitsSupply Chain: Global network of tier 1 suppliersLead Time: 6-8 weeks from order to delivery
Service Information for brakes Service
Maintenance and service requirements specific to this component
- Inspect brake pads and rotors
- Check brake fluid level and condition
- Inspect brake lines for damage or leaks
- Test ABS and ESC systems
- Clean brake components if necessary
Visual inspection only unless wear is indicated
- Replace brake fluid (Audi-approved DOT 4 LV)
- Inspect brake pads and rotors
- Check brake line connections
- Bleed brakes if air is suspected in the system
- Test brake system performance
Use Audi-approved tools and procedures
- Replace front and rear brake pads as needed
- Resurface or replace rotors if worn
- Inspect and replace brake lines if damaged
- Service brake calipers
- Perform comprehensive brake system test
Replace pads and rotors together if worn below minimum thickness
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What type of brake system does the 2017-Present Audi A4 use?
What type of brake system does the 2017-Present Audi A4 use?
The 2017-Present Audi A4 is equipped with a dual-circuit hydraulic brake system with diagonal split, featuring ventilated front disc brakes and solid rear disc brakes. The front brake discs measure 320mm in diameter (or 338mm with the optional S line brake package), while the rear discs measure 300mm. The system includes an Anti-lock Braking System (ABS), Electronic Brakeforce Distribution (EBD), and Electronic Stability Control (ESC).
Q2 What is the recommended brake pad replacement interval for the Audi A4?
What is the recommended brake pad replacement interval for the Audi A4?
The brake pad replacement interval for the Audi A4 varies based on driving conditions and style. Under normal driving conditions, front brake pads typically last between 30,000 to 50,000 miles, while rear brake pads may last up to 70,000 miles. Audi recommends inspecting brake pads every 10,000 miles or during routine maintenance to ensure optimal performance and safety.
Q3 Can I upgrade the brake system on my Audi A4?
Can I upgrade the brake system on my Audi A4?
Yes, the Audi A4 can be upgraded with high-performance brake systems, such as the Audi S line brake package or aftermarket options. The S line brake package includes larger front brake discs (338mm) and high-performance brake pads for improved stopping power. Always ensure that any upgrades are compatible with your vehicle's specifications and are installed by a certified Audi technician to maintain safety and warranty compliance.
Q4 What is the brake fluid specification for the Audi A4?
What is the brake fluid specification for the Audi A4?
The Audi A4 requires DOT 4 brake fluid with a minimum boiling point of 446°F (230°C). Audi recommends replacing the brake fluid every two years or 30,000 miles, whichever comes first, to maintain optimal braking performance and prevent moisture absorption, which can lead to brake system corrosion.
Q5 How do I know if my Audi A4 brake discs need replacement?
How do I know if my Audi A4 brake discs need replacement?
Brake discs should be replaced if they exhibit signs of excessive wear, such as scoring, grooving, or thickness below the minimum specification. The minimum thickness for front brake discs is 28mm, and for rear discs, it is 18mm. Additionally, if the brake pedal vibrates or pulsates during braking, it may indicate warped discs that require replacement.
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 A4 Brake System Maintenance Guide
Coming SoonA detailed guide on maintaining the brake system, including inspection intervals, fluid replacement, and pad/disc replacement procedures.
Audi Genuine Brake Parts Catalog
Coming SoonExplore Audi's official catalog of genuine brake components, including pads, discs, and calipers, designed specifically for the A4.
Audi A4 Brake System Troubleshooting
Coming SoonLearn how to diagnose common brake system issues, such as noise, vibration, or reduced braking performance, with step-by-step instructions.
Audi A4 Brake Upgrade Options
Coming SoonDiscover available brake upgrade options for the Audi A4, including performance packages and aftermarket solutions.
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