BMW M3 2015-2020 Brakes Specifications
Detailed technical specifications and documentation for the 2015-2020 BMW M3 braking system. Learn about brake components, performance metrics, and maintenance procedures for this high-performance vehicle.
Overview Specifications
Comprehensive description of the brakes specifications for the 2015-2020 BMW M3, including key features, measurements, and technical details
How to Use
Use the search function to locate specific brakes specifications by entering keywords such as 'brake disc diameter', 'pad material', or 'caliper type'.
Navigate through the brakes documentation sections using the table of contents or by scrolling through the document. Each section is clearly labeled for easy access.
Key Specifications
Front Brake Disc Diameter
380 mm
Rear Brake Disc Diameter
370 mm
Brake Fluid Type
DOT 4 LV
100-0 km/h Braking Distance
32 meters
Brake Pad Thickness (Front)
12 mm
Available Specifications
Brake System Overview
Detailed description of the brake system components and their functions
Brake System Overview
Detailed description of the brake system components and their functions
Front Brake System
- 4-piston fixed calipers with aluminum housing
- Front brake disc diameter: 380 mm
- Front brake disc thickness: 30 mm
- Brake pad material: High-performance ceramic composite
- Brake pad thickness: 12 mm
Rear Brake System
- 2-piston floating calipers with aluminum housing
- Rear brake disc diameter: 370 mm
- Rear brake disc thickness: 24 mm
- Brake pad material: High-performance ceramic composite
- Brake pad thickness: 10 mm
Note: The rear brake system is designed to complement the front brakes for balanced braking performance.
Brake Fluid and Hydraulics
Technical details about the brake fluid and hydraulic system
Brake Fluid and Hydraulics
Technical details about the brake fluid and hydraulic system
Brake Fluid Specifications
- Brake fluid type: DOT 4 LV
- Minimum boiling point: 230°C (446°F)
- Recommended change interval: Every 2 years or 30,000 miles
- Fluid capacity: 1.0 liter
Hydraulic System
- Hydraulic system pressure: 120 bar
- Master cylinder diameter: 25.4 mm
- ABS system: Integrated with Dynamic Stability Control (DSC)
- Brake line material: Stainless steel braided lines
Brake Performance and Maintenance
Information on brake performance metrics and maintenance requirements
Brake Performance and Maintenance
Information on brake performance metrics and maintenance requirements
Performance Metrics
- 100-0 km/h braking distance: 32 meters
- Maximum deceleration: 1.2 g
- Brake fade resistance: Up to 600°C
- Pedal travel: 80 mm
Maintenance Requirements
- Brake pad replacement interval: 30,000-50,000 miles
- Brake disc replacement interval: 60,000-80,000 miles
- Inspection interval: Every 10,000 miles
- Brake fluid flush interval: Every 2 years
Note: Regular inspection and maintenance are crucial for optimal brake performance and safety.
Search Specifications
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Brakes Specifications
Brake System Type
- System
- Hydraulic dual-circuit brake system with vacuum booster
- Front Brakes
- Ventilated disc brakes
- Rear Brakes
- Ventilated disc brakes
- Parking Brake
- Electromechanical parking brake
Brake Discs
- Front Disc Diameter
- 380 mm
- Front Disc Thickness
- 30 mm
- Rear Disc Diameter
- 370 mm
- Rear Disc Thickness
- 24 mm
- Material
- Cast iron with aluminum hat
- Part Number Front
- 34112284801
- Part Number Rear
- 34212284802
Brake Pads
- Front Pad Material
- Low-metallic compound
- Rear Pad Material
- Low-metallic compound
- Front Pad Thickness New
- 12 mm
- Rear Pad Thickness New
- 10 mm
- Minimum Threshold
- 3 mm
- Part Number Front
- 34116875061
- Part Number Rear
- 34216875062
Brake Calipers
- Front Caliper Type
- Fixed 4-piston aluminum calipers
- Rear Caliper Type
- Floating 2-piston aluminum calipers
- Front Caliper Color
- Blue
- Rear Caliper Color
- Blue
- Part Number Front
- 34112284803
- Part Number Rear
- 34212284804
Brake Fluid
- Type
- DOT 4 LV
- Capacity
- 1.0 liter
- Boiling Point Dry
- 270°C
- Boiling Point Wet
- 180°C
- Replacement interval
- Every 2 years or 30,000 miles
Brake Hoses
- Material
- Reinforced rubber with stainless steel braiding
- Front Hose Length
- 450 mm
- Rear Hose Length
- 500 mm
- Part Number Front
- 34312284805
- Part Number Rear
- 34412284806
Brake Booster
- Type
- Vacuum brake booster
- Diameter
- 9 inches
- Part Number
- 34312284807
Parking Brake System
- Type
- Electromechanical
- Actuation
- Button on center console
- Cable Type
- Stainless steel
- Part Number
- 34412284808
Brake System Tolerances
- Brake Disc Runout Max
- 0.05 mm
- Brake Pad Wear Limit
- 3 mm
- Brake Fluid Level Min
- 10 mm below max mark
- Parking Brake Cable Tension
- 5-7 Nm
Diagnostic Specifications
- Brake Wear Sensor
- Type: Integrated into brake padsPart Number Front: 34356789012Part Number Rear: 34456789013
- Fault Codes
-
- DSC 5E20 - Brake pressure sensor fault
- DSC 5E21 - Brake fluid level sensor fault
- DSC 5E22 - Parking brake actuator fault
Service Information Service
Detailed service requirements and schedules for the brake system
- Inspect brake pads and discs for wear
- Check brake fluid level and condition
- Inspect brake hoses for leaks or damage
Replace brake fluid every 2 years regardless of mileage
- Replace brake fluid
- Inspect parking brake system
- Check brake caliper operation
Ensure brake system is bled properly after fluid replacement
- Replace brake pads and discs if necessary
- Inspect brake booster and vacuum system
- Check brake system for leaks
Use only BMW-approved brake components for replacement
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What type of brake system does the 2015-2020 BMW M3 use?
What type of brake system does the 2015-2020 BMW M3 use?
The 2015-2020 BMW M3 is equipped with a high-performance compound brake system. The front brakes feature 380mm ventilated and perforated discs with 4-piston fixed calipers, while the rear brakes use 370mm ventilated and perforated discs with 2-piston fixed calipers. The system includes ABS, DSC (Dynamic Stability Control), and an electronic parking brake.
Q2 What is the recommended brake pad replacement interval for the BMW M3?
What is the recommended brake pad replacement interval for the BMW M3?
The brake pad replacement interval for the BMW M3 varies based on driving conditions and style. Under normal driving conditions, brake pads typically last between 30,000 to 50,000 miles. However, aggressive driving or track use may significantly reduce this interval. Always monitor the brake pad wear sensor and consult the vehicle's onboard service system for accurate replacement timing.
Q3 Can I use aftermarket brake pads on my BMW M3?
Can I use aftermarket brake pads on my BMW M3?
While aftermarket brake pads can be used, it is highly recommended to use genuine BMW or BMW-approved brake pads to ensure optimal performance, safety, and compatibility. Aftermarket pads may not meet the same performance standards and could affect braking efficiency, noise levels, and wear characteristics. Using non-genuine parts may also void the vehicle's warranty.
Q4 How do I properly bed in new brake pads and rotors on my BMW M3?
How do I properly bed in new brake pads and rotors on my BMW M3?
To bed in new brake pads and rotors, follow these steps: 1. Perform 6-10 moderate stops from 35 mph to 10 mph, allowing the brakes to cool between stops. 2. Perform 3-5 hard stops from 50 mph to 15 mph, again allowing cooling between stops. 3. Avoid coming to a complete stop during the bedding process. 4. Drive for 5-10 minutes at moderate speed to allow the brakes to cool completely. Proper bedding ensures optimal brake performance and longevity.
Q5 What is the brake fluid specification for the BMW M3?
What is the brake fluid specification for the BMW M3?
The BMW M3 requires DOT 4 LV (Low Viscosity) brake fluid, such as BMW Part No. 81 22 2 372 990. The brake fluid should be replaced every 2 years or 30,000 miles, whichever comes first. Always use fresh, unopened brake fluid to maintain the system's performance and safety.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
BMW M3 Brake System Technical Manual
Coming SoonOfficial technical manual detailing the brake system components, specifications, and maintenance procedures for the 2015-2020 BMW M3.
Brake Pad and Rotor Replacement Guide
Coming SoonStep-by-step guide for replacing brake pads and rotors on the BMW M3, including torque specifications and safety precautions.
Brake Fluid Flush and Bleeding Procedure
Coming SoonDetailed instructions for performing a brake fluid flush and bleeding procedure on the BMW M3, ensuring proper system performance.
Track Day Brake Maintenance Tips
Coming SoonExpert advice on maintaining and optimizing your BMW M3's brakes for track day use, including pad selection and cooling techniques.
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