BMW 550i 2017-present Brakes Specifications
A detailed guide to the braking system of the 2017-Present BMW 550i, including rotor sizes, caliper specs, and advanced features.
Brake System Specifications Specifications
This document provides a comprehensive overview of the brake system specifications for the 2017-Present BMW 550i. It includes detailed technical information, key features, and operational guidelines. Use this document to understand the components, performance metrics, and maintenance requirements of the braking system. Refer to the sections below for specific details and the quick reference guide for key specifications.
How to Use
To search for specific information, use the browser's find function (Ctrl+F or Cmd+F). Enter keywords related to the brake system, such as 'rotor size' or 'caliper type', to locate relevant sections quickly.
Navigate through the document by scrolling through the sections. Each section is organized hierarchically, starting with major categories like 'Brake System Overview' and 'Performance Metrics', followed by subsections with detailed specifications.
Key Specifications
Front Brake Rotor Diameter
14.0 inches (355 mm)
Rear Brake Rotor Diameter
13.6 inches (345 mm)
Brake Caliper Type (Front/Rear)
4-piston / 2-piston
Brake Rotor Material
High-carbon cast iron
Stopping Distance (0-60 mph)
Approx. 120 feet
Available Specifications
Brake System Overview
This section provides a general overview of the brake system, including its primary components and key features. It serves as a starting point for understanding the braking technology employed in the 2017-Present BMW 550i.
Brake System Overview
This section provides a general overview of the brake system, including its primary components and key features. It serves as a starting point for understanding the braking technology employed in the 2017-Present BMW 550i.
Key Components
- Ventilated disc brakes on all four wheels
- Dual-circuit braking system with diagonal split
- Electronic Brakeforce Distribution (EBD)
- Anti-lock Braking System (ABS)
- Regenerative braking system (if equipped with hybrid technology)
Brake Calipers
- 4-piston fixed calipers at the front
- 2-piston fixed calipers at the rear
- High-performance brake pads with low dust properties
- Calipers finished in BMW's signature color
Brake Rotor Specifications
This section details the specifications of the brake rotors, including their dimensions, materials, and cooling mechanisms. The information provided is essential for maintenance and upgrade planning.
Brake Rotor Specifications
This section details the specifications of the brake rotors, including their dimensions, materials, and cooling mechanisms. The information provided is essential for maintenance and upgrade planning.
Front Brake Rotors
- Rotor diameter: 14.0 inches (355 mm)
- Rotor thickness: 1.1 inches (28 mm)
- Ventilated design for enhanced heat dissipation
- Made from high-carbon cast iron for durability
- Drilled rotor design for improved cooling and reduced weight
Rear Brake Rotors
- Rotor diameter: 13.6 inches (345 mm)
- Rotor thickness: 0.9 inches (22 mm)
- Ventilated design for consistent braking performance
- Made from high-carbon cast iron for longevity
- Drilled rotor design for optimized heat management
Brake Performance Metrics
This section outlines the performance metrics of the brake system, including stopping distances and fade resistance. These metrics are crucial for understanding the braking capabilities of the vehicle.
Brake Performance Metrics
This section outlines the performance metrics of the brake system, including stopping distances and fade resistance. These metrics are crucial for understanding the braking capabilities of the vehicle.
Stopping Distances
- 0-60 mph stopping distance: approximately 120 feet
- 100-0 mph stopping distance: approximately 330 feet
- Consistent stopping performance across multiple cycles
- Reduced stopping distances in wet conditions due to advanced ABS
- Optimized brake pedal feel for precise control
Fade Resistance
- High resistance to brake fade under heavy use
- Advanced cooling systems minimize heat buildup
- High-performance brake pads maintain consistent friction levels
- Electronic systems compensate for heat-related performance loss
- Minimal reduction in braking efficiency during repeated stops
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Brakes Specifications
Overview
- Type
- Ventilated disc brakes
- Configuration
- Front and rear
- Platform
- G30
- Material
- Steel discs, Aluminum calipers
- Location
- Front and rear axles
Dimensions
- Front Rotor Diameter
- 13.7 in (348 mm)
- Rear Rotor Diameter
- 13.0 in (330 mm)
- Front Rotor Thickness
- 1.2 in (30 mm)
- Rear Rotor Thickness
- 1.2 in (30 mm)
- Front Caliper Piston Diameter
- 4.0 in (102 mm)
- Rear Caliper Piston Diameter
- 2.8 in (71 mm)
- Brake Pad Thickness
- 0.4 in (10 mm)
Materials
- Rotor
- Steel
- Caliper
- Aluminum alloy
- Brake Pads
- High-friction organic compound
- Wear Sensors
- Rubber or silicone
Features
- Adaptive Brake Modes
-
- Comfort
- Sport
- Sport+
- Brake Assist Features
-
- Automatic emergency braking
- Brake pre-tensioning
- Rain brake support
- Cooling Systems
-
- Front and rear rotor ventilation
- Caliper cooling ducts
- Electronic Controls
-
- ABS (Anti-lock Braking System)
- EBD (Electronic Brakeforce Distribution)
- DBC (Dynamic Brake Control)
- Monitoring Systems
-
- Brake pad wear monitoring
- Brake fluid level sensor
- Brake system status display
- Additional Features
-
- Brake hold function
- Hill descent control
- Automatic brake drying
Safety Features
- Emergency Braking
-
- Automatic emergency braking
- Emergency brake assist
- Stability Control
-
- Dynamic Stability Control (DSC)
- Cornering Brake Control (CBC)
- Collision Prevention
-
- Active Driving Assistant
- City Collision Mitigation
Comfort Features
- Noise Reduction
-
- Noise-dampening brake pads
- Optimized rotor surface finish
- Smooth Operation
-
- Progressive brake pedal feel
- Smooth transition between brake modes
- Convenience
-
- Auto hold function
- Brake assistant in traffic jams
Accessories
- High Performance
-
- M Sport brake kit
- Ceramic brake rotor upgrade
- High-performance brake pads
- Aesthetic
-
- Painted calipers
- Engraved brake calipers
- Decorative rotor caps
- Functional
-
- Brake cooling kits
- Brake duct upgrades
- Performance brake fluid
Maintenance
- Service interval
- Every 12,000 to 15,000 miles
- Service Items
-
- Brake pad inspection
- Rotor inspection and resurfacing
- Brake fluid check and replacement
- Caliper lubrication
- Brake hose inspection
- ABS sensor cleaning
- Maintenance Notes
-
- Recommended to use BMW-approved parts
- Brake fluid should be replaced every 2 years
- Rotor replacement recommended if thickness falls below minimum specification
Warranty
- Basic
- Miles: 50,000Years: 4Coverage: Parts and labor
- Maintenance
- Miles: 50,000Years: 4Coverage: Select maintenance items
- Accessories
- Miles: 50,000Years: 4Coverage: Genuine BMW accessories
- Corrosion
- Miles: 12 yearsYears: UnlimitedCoverage: Perforation of body panels
Production Details
- Manufacturer
- BMW Group
- Manufacturing Process
-
- CNC machining of rotors
- Aluminum alloy casting for calipers
- High-temperature treatment for brake pads
- Precision assembly and testing
- Quality Control
- inspection: 100% inspection of critical componentsTesting: Performance testing under various conditionsCertifications: Compliance with global braking standards
- Sustainability Practices
-
- Recycling of materials
- Energy-efficient manufacturing processes
- Eco-friendly packaging and logistics
- Production Metrics
- Annual Production: Over 100,000 unitsFacilities: Manufactured in BMW's global plantsQuality Rating: ISO/TS 16949:2002 certified
Service Information for brakes Service
Maintenance and service requirements specific to this component
- Inspect brake pads and rotors
- Check brake fluid level and condition
- Test ABS and DSC systems
- Clean brake sensors
- Lubricate brake caliper pins
Standard maintenance interval, no major replacements expected.
- Replace brake pads if worn below 3mm
- Resurface or replace rotors if needed
- Replace brake fluid
- Inspect brake hoses for cracks or damage
- Clean and lubricate brake components
More extensive service, may require additional repairs based on inspection.
- Replace rear brake pads
- Inspect and replace front brake pads if necessary
- Replace rear brake rotors if warped or worn
- Bleed brake system
- Inspect ABS sensors and wiring
Major service interval, ensure all components are checked thoroughly.
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What are the technical specifications of the brakes on a 2017-Present BMW 550i?
What are the technical specifications of the brakes on a 2017-Present BMW 550i?
The 2017-Present BMW 550i features a braking system with vented disc brakes front and rear. The front brakes consist of 374mm rotors with 4-piston fixed calipers, while the rear features 370mm rotors with 2-piston fixed calipers. The system is compatible with BMW's Dynamic Brake Control and Brake Assist. The brake fluid recommended is DOT 4, and the brake pads are designed for high performance with a heat-resistant friction material.
Q2 What maintenance is required for the brakes on a 2017-Present BMW 550i?
What maintenance is required for the brakes on a 2017-Present BMW 550i?
Regular brake maintenance includes inspecting brake pads every 10,000-15,000 miles, replacing them when worn below 3mm, and checking rotors for excessive wear or warping. Brake fluid should be replaced every 2 years or as specified in the service manual. Cleaning brake components with a brake cleaner and ensuring proper lubrication of moving parts are also recommended.
Q3 How do I replace the brake pads on a 2017-Present BMW 550i?
How do I replace the brake pads on a 2017-Present BMW 550i?
To replace the brake pads, start by lifting the vehicle and removing the wheels. Remove the caliper bolts and slide the caliper off the rotor. Take out the old pads and install the new ones, ensuring proper alignment. Reinstall the caliper and tighten the bolts to the specified torque (approximately 40-50 Nm). Bleed the brake system if necessary and test the brakes before driving.
Q4 How do I troubleshoot common brake issues on a 2017-Present BMW 550i?
How do I troubleshoot common brake issues on a 2017-Present BMW 550i?
Common issues include spongy brakes (air in the system), grinding noises (worn pads or rotors), or a brake warning light. Check the brake fluid level and condition, inspect pads and rotors for wear, and ensure proper system bleeding. If issues persist, consult a professional technician to diagnose and repair problems like ABS sensor malfunctions or hydraulic system leaks.
Q5 How can I optimize the performance of my BMW 550i brakes?
How can I optimize the performance of my BMW 550i brakes?
For optimal performance, use high-quality brake pads designed for high thermal loads. Ensure proper cooling by cleaning brake ducts and maintaining proper alignment. Avoid aggressive driving that overheats the brakes, and consider upgrading to performance rotors or high-performance brake fluid (e.g., DOT 5.1). Regular maintenance and inspections are crucial for maintaining peak braking performance.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
2017-Present BMW 550i Service Manual
Coming SoonComprehensive guide covering maintenance, repair, and technical specifications for the BMW 550i braking system.
BMW Technical Bulletin: Brake System Updates
Coming SoonSummary of updates, recalls, and technical improvements for the braking system of 2017-Present BMW 550i models.
BMW Parts Catalog: Brake Components
Coming SoonDetailed list of genuine BMW brake parts, including pads, rotors, and fluid for the 2017-Present 550i.
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