BMW X1 2015-2021 Brakes Specifications
Find detailed brake specifications for the 2015-2021 BMW X1. Includes rotor sizes, caliper specs, brake pads, and fluid requirements for maintenance and upgrades.
Brake System Overview Specifications
This document provides detailed specifications and technical information for the brake systems of the 2015-2021 BMW X1. It is designed to assist technicians, enthusiasts, and owners in understanding the components, operation, and maintenance of the braking system. Use the search functionality to quickly locate specific information, and navigate through the sections to explore detailed technical data.
How to Use
To search for specific information, use the search bar at the top of the document. Type in keywords such as 'rotor size,' 'caliper type,' or 'brake fluid,' and press Enter to find relevant results.
Navigate through the document by clicking on the section titles in the table of contents. Each section contains subsections with detailed specifications and technical points. Use the arrow buttons or scroll bars to move between sections and subsections.
Key Specifications
Front Rotor Diameter
12.8 in (325 mm)
Rear Rotor Diameter
11.8 in (300 mm)
Braking Distance (100-0 km/h)
36.4 meters
Brake Fluid Type
DOT 4 LV
Brake Pads Life Expectancy
30,000 - 50,000 miles
Available Specifications
Brake System Overview
This section provides a general overview of the BMW X1 brake system, including its components and key features. It is designed to give a high-level understanding of how the braking system operates and its main specifications.
Brake System Overview
This section provides a general overview of the BMW X1 brake system, including its components and key features. It is designed to give a high-level understanding of how the braking system operates and its main specifications.
Design and Components
- Dual-circuit brake system with diagonal split
- Electronic Brakeforce Distribution (EBD)
- Anti-lock Braking System (ABS)
- Brake Assistant
- Ventilated discs on all four wheels
- Aluminum calipers
Key Features
- Dynamic Brake Control
- Automatic Brake Drying
- Fade Compensation
- Soft Stop
- Hill Descent Control (optional)
- Integrated Brake System (IBS)
Front Brake Specifications
This section details the specifications of the front brake components, including rotor size, caliper type, and pad material. It is essential for maintenance, repair, and upgrade purposes.
Front Brake Specifications
This section details the specifications of the front brake components, including rotor size, caliper type, and pad material. It is essential for maintenance, repair, and upgrade purposes.
Front Brake Rotor
- Rotor diameter: 12.8 inches (325 mm)
- Rotor thickness: 1.1 inches (28 mm)
- Ventilated design for improved heat dissipation
- Made from high-carbon cast iron
- Minimum thickness: 1.0 inches (25 mm)
- Maximum allowable runout: 0.002 inches (0.05 mm)
Front Brake Caliper
- Floating caliper design
- Single-piston configuration
- Aluminum construction
- Piston diameter: 3.0 inches (76 mm)
- Pad area: 25.4 square inches (164 cm2)
- Maximum operating pressure: 2,200 psi (152 bar)
Rear Brake Specifications
This section provides detailed specifications for the rear brake components, including rotor size, caliper type, and pad material. It is crucial for ensuring proper rear brake function and performance.
Rear Brake Specifications
This section provides detailed specifications for the rear brake components, including rotor size, caliper type, and pad material. It is crucial for ensuring proper rear brake function and performance.
Rear Brake Rotor
- Rotor diameter: 11.8 inches (300 mm)
- Rotor thickness: 0.9 inches (23 mm)
- Solid design with ventilation channels
- Made from high-carbon cast iron
- Minimum thickness: 0.8 inches (20 mm)
- Maximum allowable runout: 0.002 inches (0.05 mm)
Rear Brake Caliper
- Floating caliper design
- Single-piston configuration
- Aluminum construction
- Piston diameter: 2.8 inches (71 mm)
- Pad area: 19.1 square inches (123 cm2)
- Maximum operating pressure: 1,800 psi (124 bar)
Brake Assist Systems
This section outlines the advanced brake assist systems available in the 2015-2021 BMW X1, including their functions and benefits. These systems enhance safety and braking performance under various driving conditions.
Brake Assist Systems
This section outlines the advanced brake assist systems available in the 2015-2021 BMW X1, including their functions and benefits. These systems enhance safety and braking performance under various driving conditions.
Automatic Emergency Braking
- Part of the Driving Assistance Package
- Operates at speeds between 3-37 mph (5-60 km/h)
- Uses radar and camera sensors
- Alerts driver before applying brakes
- Reduces collision severity or prevents it
- Works in conjunction with Lane Departure Warning
Dynamic Brake Control
- Optimizes brake force distribution
- Prevents wheel lock-up during hard braking
- Works in conjunction with ABS
- Improves stability and control
- Reduces stopping distance
- Activates during sudden deceleration
Brake Fluid and Maintenance
This section provides information on brake fluid specifications, maintenance intervals, and procedures for the BMW X1 brake system. Regular maintenance is essential for ensuring optimal braking performance and safety.
Brake Fluid and Maintenance
This section provides information on brake fluid specifications, maintenance intervals, and procedures for the BMW X1 brake system. Regular maintenance is essential for ensuring optimal braking performance and safety.
Brake Fluid Specifications
- Recommended fluid: BMW Group approval 81 22 9 407 761
- Equivalent to DOT 4 LV (Low Viscosity)
- Change interval: Every 2 years or 30,000 miles
- Check fluid level every 12,000 miles
- Use only approved BMW brake fluid
- Avoid mixing with other brake fluids
Maintenance Intervals
- Brake pads: Inspect every 12,000 miles
- Brake rotors: Inspect every 15,000 miles
- Brake fluid: Change every 2 years or 30,000 miles
- Brake hoses: Inspect every 30,000 miles
- ABS sensors: Check every 30,000 miles
- Brake lines: Inspect every 60,000 miles
Search Specifications
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Brakes Specifications
Overview
- Type
- Ventilated disc brakes
- Configuration
- Front and rear
- Platform
- UKL platform
- Material
- Steel rotors, Aluminum calipers
- Location
- Front and rear axle
Dimensions
- Front Rotor Diameter
- 13.0 in (330 mm)
- Rear Rotor Diameter
- 11.8 in (300 mm)
- Front Caliper Piston Diameter
- 3.5 in (88.9 mm)
- Rear Caliper Piston Diameter
- 2.5 in (63.5 mm)
- Brake Pad Thickness
- 0.47 in (11.9 mm)
- Rotor Thickness
- 0.79 in (20.0 mm)
- Wheel Size Range
- 17 in - 19 in
Materials
- Rotors
- Steel
- Calipers
- Aluminum alloy
- Brake Pads
- Semi-metallic compound
- Brake Lines
- Steel-reinforced rubber
Features
- Dynamic Brake Control
-
- Electronic Brakeforce Distribution (EBD)
- Automatic brake drying in wet conditions
- Brake fade compensation
- Emergency braking assistance
- Anti-Lock Braking System
-
- Four-channel ABS
- Electronic brake distribution
- Traction control system integration
- Cornering brake control
- Driving Stability Control
-
- Dynamic Stability Control (DSC)
- Dynamic Traction Control (DTC)
- Electronic Differential Brake (EDB)
- Brake Standby function
- Automatic Hold Function
-
- Hill descent control
- Auto Hold function
- Creep control
- Stop & Go functionality
- Brake Assist
-
- Emergency Brake Assist (EBA)
- Automatic emergency calling
- Post-crash braking
- Pre-crash braking preparation
Safety Features
- Anti-Lock Braking
-
- Four-wheel ABS
- Electronic Brakeforce Distribution
- Cornering Brake Control
- Stability Control
-
- Dynamic Stability Control (DSC)
- Traction Control System (TCS)
- Electronic Differential Brake (EDB)
- Emergency Braking
-
- Automatic Emergency Braking (AEB)
- Emergency Brake Assist (EBA)
- Post-crash braking system
- Brake Assist Systems
-
- Hill Descent Control (HDC)
- Brake Standby function
- Start-Off Assistant
Comfort Features
- Automatic Hold Function
-
- Auto Hold function
- Creep control
- Stop & Go functionality
- Brake Drying
-
- Automatic brake drying in wet conditions
- Brake fade compensation
- Noise Reduction
-
- Semi-metallic brake pads
- Aluminum calipers
- Optimized rotor design
- Convenience Features
-
- Hill descent control
- Electronic parking brake
- Brake Standby function
Accessories
- High Performance
-
- M Sport brake kit
- High-performance brake pads
- Cross-drilled rotors
- Upgraded brake lines
- Replacement Parts
-
- Brake rotor set
- Brake pad wear sensor
- Brake fluid reservoir
- Caliper repair kit
- Optional Equipment
-
- Adaptive brake lights
- Brake pad wear indicator
- Emergency brake assistant
- Brake system flush kit
Maintenance
- Service interval
- Every 12,000 miles or 12 months
- Items
-
- Brake fluid change
- Brake pad inspection
- Rotor inspection
- Brake line inspection
- ABS system check
- Notes
- Replace brake pads every 30,000 - 50,000 miles. Replace rotors every 50,000 - 70,000 miles.
Warranty
- New Vehicle
- Miles: 48,000 milesYears: 4 yearsCoverage: Bumper-to-bumper warranty
- Certified Pre Owned
- Miles: Unlimited milesYears: 5 yearsCoverage: Certified Pre-Owned warranty
- Parts
- Miles: 48,000 milesYears: 4 yearsCoverage: Brake components warranty
- Corrosion Protection
- Miles: Unlimited milesYears: 12 yearsCoverage: Corrosion perforation warranty
Production Details
- Manufacturer
- BMW Group
- Manufacturing Process
-
- Casting of brake rotors
- Machining of calipers
- Assembly of brake components
- Quality control testing
- Quality Control
- inspection: 100% inspection of critical componentsTesting: Functional testing of brake systemsCertification: ISO 9001:2015 certified
- Sustainability
-
- Recycling of brake materials
- Energy-efficient manufacturing
- Use of eco-friendly packaging
- Production Metrics
- Annual Production: Over 1 million unitsQuality Rating: 99.9% defect-free rateSupplier Quality: Tier 1 suppliers only
Service Information for brakes Service
Maintenance and service requirements specific to this component
- Inspect brake pads and rotors
- Check brake fluid level
- Test ABS and DSC systems
- Inspect brake lines and hoses
- Clean brake calipers
Ensure all brake components are free from contamination and damage.
- Replace brake pads
- Inspect and resurface rotors
- Replace brake fluid
- Check ABS sensors
- Inspect emergency brake system
Use factory-approved brake fluid and components. Calibrate ABS system after service.
- Replace brake rotors
- Replace brake pads
- Inspect and replace brake lines
- Flush and replace brake fluid
- Perform full brake system test
Ensure proper torque specifications for all components. Test brake system performance after service.
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What are the technical specifications of the brakes on a 2015-2021 BMW X1?
What are the technical specifications of the brakes on a 2015-2021 BMW X1?
The 2015-2021 BMW X1 features ventilated disc brakes front and rear. Front brake rotors are 12.8 inches in diameter with 4-piston fixed calipers, while rear rotors are 11.6 inches with single-piston floating calipers. The system includes ABS, DSC, and brake drying functionality. Brake pads are BMW-specific, and compatible models include sDrive28i, xDrive28i, xDrive35i, and sDrive20i (international).
Q2 What maintenance is required for the brakes?
What maintenance is required for the brakes?
Brake fluid should be changed every 30,000 miles. Inspect pads every 10,000 miles and replace when worn below 3mm. Rotors should be resurfaced or replaced if warped. Clean brake components regularly and check for leaks. Refer to the service manual for detailed schedules.
Q3 How do I install or replace the brakes?
How do I install or replace the brakes?
Tools needed: wheel chocks, jack, lug wrench, C-clamps, new pads/rotors. Jack the vehicle, remove wheels, detach calipers, remove old pads/rotors, install new ones, reattach calipers, bleed brakes if necessary, and test drive.
Q4 How do I troubleshoot common brake issues?
How do I troubleshoot common brake issues?
Spongy brake pedal: Check fluid level and for leaks. Noise: Inspect pads and rotors for wear. Pulling to one side: Check alignment or brake wear. Dragging brakes: Inspect for stuck calipers. Consult a professional if issues persist.
Q5 How can I optimize brake performance?
How can I optimize brake performance?
Upgrade to high-performance pads and rotors. Ensure proper wheel alignment. Use high-boiling-point brake fluid. Avoid aggressive driving and maintain correct tire pressure. Regularly clean brake components.
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 X1 Brake Service Manual
Coming SoonDetailed guide for brake maintenance and repair procedures.
Brake System Technical Bulletin
Coming SoonLatest updates and technical specifications.
BMW X1 Parts Catalog
Coming SoonComprehensive list of brake components and accessories.
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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.
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