BMW 640i 2018-present Brakes Specifications
Explore the detailed brake specifications of the 2018-Present BMW 640i, including ABS, DSC, and regenerative braking features. Find maintenance tips and upgrade options.
Brake System Specifications Specifications
This document provides a detailed overview of the brake system specifications for the 2018-Present BMW 640i. It includes technical details, key features, and performance metrics. Use this guide to understand the components, maintenance requirements, and advanced technologies integrated into the braking system. Navigate through the sections to find specific information or refer to the quick reference for key specifications.
How to Use
To search for specific information, use the search functionality by typing keywords related to the brake system, such as 'rotor size' or 'ABS features.' This will help you quickly locate relevant sections.
Navigate through the document by selecting sections from the table of contents. Each section is organized by major brake system components, with subsections providing detailed technical specifications and explanations.
Key Specifications
Front Brake Rotor Size
13.7 in (348 mm)
Rear Brake Rotor Size
12.6 in (320 mm)
Brake Caliper Type (Front/Rear)
4-piston / 2-piston
60-0 mph Stopping Distance
Approx. 108 ft
Brake Fluid Type
DOT 4
Available Specifications
Brake System Overview
This section provides a high-level overview of the BMW 640i brake system, including its design philosophy, key components, and integrated safety features. Understand how the system is engineered for performance and reliability.
Brake System Overview
This section provides a high-level overview of the BMW 640i brake system, including its design philosophy, key components, and integrated safety features. Understand how the system is engineered for performance and reliability.
System Design and Features
- Adaptive Brake System with dynamic proportioning
- Integrated ABS (Anti-lock Braking System) for improved traction
- Brake Assist for emergency stopping situations
- Regenerative braking system to recharge the battery
- Lightweight brake components for reduced unsprung mass
Key Components
- 4-wheel ventilated disc brakes
- Floating brake calipers for consistent performance
- High-performance brake pads with low dust formulation
- Stainless steel brake lines for durability
- Electronically controlled brake distribution
Brake Components and Technical Specifications
This section details the technical specifications of the brake components, including rotor sizes, caliper configurations, and material specifications. Refer to this section for precise measurements and technical details.
Brake Components and Technical Specifications
This section details the technical specifications of the brake components, including rotor sizes, caliper configurations, and material specifications. Refer to this section for precise measurements and technical details.
Front Brake Specifications
- Rotor size: 13.7 inches (348 mm) in diameter
- Caliper type: 4-piston fixed calipers
- Pad material: High-friction, low-dust compound
- Cooling system: Ventilated rotors with internal cooling vanes
- Weight reduction: Drilled rotors for reduced mass
Rear Brake Specifications
- Rotor size: 12.6 inches (320 mm) in diameter
- Caliper type: 2-piston floating calipers
- Pad material: High-performance, wear-resistant compound
- Cooling system: Solid rotors with integrated cooling channels
- Brake dust protection: Shielded design to reduce corrosion
Brake Performance and Safety Features
This section highlights the performance capabilities and advanced safety features of the BMW 640i brake system. Learn about the system's response times, heat management, and integration with driver assistance systems.
Brake Performance and Safety Features
This section highlights the performance capabilities and advanced safety features of the BMW 640i brake system. Learn about the system's response times, heat management, and integration with driver assistance systems.
Performance Metrics
- 60-0 mph stopping distance: Approximately 108 feet
- Repeat stopping performance: Consistent braking even under heavy use
- Heat dissipation: Optimized rotor design for even heat distribution
- Wet weather performance: Enhanced grip through advanced pad compounds
- Fade resistance: Minimal brake fade under prolonged use
Safety and Driver Assistance
- Automatic Emergency Braking (AEB) integration
- Dynamic Stability Control (DSC) with brake intervention
- Cornering Brake Control (CBC) for stability during turns
- Brake drying feature for improved wet weather performance
- Brake Stand-by function for quicker response times
Maintenance and Service
This section provides guidelines for maintaining and servicing the brake system. Find information on recommended service intervals, inspection procedures, and replacement parts.
Maintenance and Service
This section provides guidelines for maintaining and servicing the brake system. Find information on recommended service intervals, inspection procedures, and replacement parts.
Service Intervals and Recommendations
- Brake fluid change: Every 30,000 miles or as indicated by Condition Based Service
- Brake pad inspection: Every 12,000 miles or when symptoms arise
- Rotor inspection: Every 30,000 miles or when pads are replaced
- Caliper maintenance: Clean and lubricate slide pins as needed
- Sensor and wiring inspection: Check for damage or corrosion
Replacement Guidelines
- Brake pads: Replace when wear sensor indicates low thickness
- Rotors: Replace if warped or excessively worn
- Brake fluid: Use BMW-approved DOT 4 fluid
- Sensors: Replace if faulty or damaged
- Hoses: Inspect for cracks or leaks; replace as needed
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Brakes Specifications
Overview
- Type
- ventilated disc brakes
- Configuration
- front and rear axle
- Platform
- BMW G32 6 Series
- Material
- aluminum and steel components
- Location
- front and rear wheels
Dimensions
- Front Brake Rotor Diameter
- 13.7 in (348 mm)
- Rear Brake Rotor Diameter
- 12.6 in (320 mm)
- Front Brake Rotor Thickness
- 1.0 in (25 mm)
- Rear Brake Rotor Thickness
- 0.8 in (20 mm)
- Brake Pad Thickness
- 0.47 in (12 mm)
- Caliper Piston Diameter
- 1.97 in (50 mm)
- Overall Brake Width
- 12.2 in (310 mm)
- Overall Brake Height
- 6.3 in (160 mm)
Materials
- Brake Rotors
- cast iron with aluminum hat
- Brake Pads
- ceramic composite material
- Calipers
- aluminum alloy
- Brake Lines
- steel-reinforced rubber
- Brake Fluid
- DOT 4 synthetic brake fluid
Features
- Performance Brake Features
-
- M Sport brake system
- Dynamic Brake Control (DBC)
- Automatic Brake Drying (ABD)
- Cornering Brake Control (CBC)
- Adaptive Brake Assistant
- Convenience Brake Features
-
- Auto Start/Stop function
- Soft-stop function for smoother deceleration
- Brake pad wear sensors
- Electronic parking brake (EPB)
- Hill Descent Control (HDC)
- System Brake Features
-
- Regenerative braking system
- Brake Energy Regeneration (BER)
- Electronic Stability Control (ESC)
- Traction Control System (TCS)
- Anti-lock Braking System (ABS)
Safety Features
- Emergency Braking
-
- Automatic Emergency Braking (AEB)
- Collision Mitigation Braking System
- Pre-crash Brake Assist
- Stability Control
-
- Dynamic Stability Control (DSC)
- Electronic Differential Lock Control (EDLC)
- Brake Standby function
- Assist Features
-
- Traffic Jam Assistant with active braking
- Active Driving Assistant with Lane Departure Warning
Comfort Features
- Driver Convenience
-
- Automatic brake hold function
- Electric parking brake with auto-release
- Brake assistant for stop-and-go traffic
- Noise Reduction
-
- Acoustic insulation for brake components
- Silent brake operation in low-speed maneuvers
- Vibration-dampened brake pedal
- Ergonomic Design
-
- Adjustable brake pedal position
- Progressive brake pedal feel
- Anti-vibration brake hardware
Accessories
- Performance Accessories
-
- High-performance brake pads
- Upgraded brake rotors with cross-drilling
- Lightweight brake discs
- Carbon-ceramic brake rotor upgrade
- Convenience Accessories
-
- Brake cooling duct kit
- Brake fluid upgrade kit
- Brake rotor protection shields
- Brake cleaning kit
- Styling Accessories
-
- Painted brake calipers
- Engraved brake calipers
- Brake caliper covers
- Illuminated brake calipers
Maintenance
- Service interval
- Every 12,000 miles or 12 months
- Service Items
-
- Brake pad wear inspection
- Brake rotor thickness measurement
- Brake fluid level check
- Brake line inspection
- Caliper function test
- ABS sensor cleaning
- Maintenance Notes
- Replace brake pads if thickness is below 1/8 inch (3 mm). Replace brake rotors if thickness variation exceeds 0.001 inches (0.025 mm).
Warranty
- Basic Warranty
- Miles: 50,000 milesYears: 4 yearsCoverage: Brake system components excluding wear items
- Maintenance Warranty
- Miles: 36,000 milesYears: 3 yearsCoverage: Brake fluid changes and inspections
- Rust Warranty
- Miles: 12 yearsYears: unlimitedCoverage: Brake component corrosion
- Accessories Warranty
- Miles: 2 yearsYears: unlimitedCoverage: Brake accessory components
Production Details
- Manufacturer
- BMW Group
- Manufacturing Process
-
- CNC machining for brake components
- High-strength casting for brake rotors
- Aluminum alloy forging for calipers
- Advanced coating processes for corrosion resistance
- Laser welding for brake rotor hats
- Quality Control
- inspection: 100% dimensional inspection of critical componentsTesting: Dynamic testing of brake systems on test benchesCertification: Compliance with global brake safety standards
- Sustainability Practices
-
- Recyclable brake materials
- Energy-efficient manufacturing processes
- Low-emission production technologies
- Use of lightweight materials for reduced energy consumption
- Production Metrics
- Annual Production: Over 100,000 unitsProduction Facilities: Multiple global manufacturing sitesSupplier Network: Tier 1 suppliers for critical componentsLead Time: 6-8 weeks for custom brake configurations
Service Information for Brakes Service
Maintenance and service requirements specific to the braking system
- Inspect brake pads for wear
- Measure brake rotor thickness
- Check brake fluid level and condition
- Inspect brake lines for damage or leaks
- Test ABS and DSC system functionality
- Clean brake pad sensors
Recommended for normal driving conditions. Use only DOT 4 brake fluid.
- Replace brake pads if worn below 1/8 inch
- Inspect brake rotor surfaces for scoring
- Bleed brake system if fluid is contaminated
- Check caliper slider pins for free movement
- Inspect parking brake cables and actuators
- Test electronic brake features
Special attention to brake fluid quality and system cleanliness.
- Replace brake rotors if warped or worn
- Replace brake pads regardless of wear
- Flush and replace brake fluid completely
- Inspect and replace brake line flexible hoses
- Clean and lubricate brake caliper slides
- Perform full ABS system calibration
Critical service interval for maintaining optimal brake performance and safety.
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What are the technical specifications of the brakes on a 2018-Present BMW 640i?
What are the technical specifications of the brakes on a 2018-Present BMW 640i?
The 2018-Present BMW 640i features a braking system with 13.7-inch front brake rotors and 13.0-inch rear brake rotors. The front brakes are equipped with 4-piston fixed calipers, while the rear brakes use 2-piston fixed calipers. The system is compatible with DOT 4 brake fluid and features brake pads designed for high performance and durability. The brake system is also equipped with advanced features such as Dynamic Brake Control (DBC) and Cornering Brake Control (CBC).
Q2 What are the maintenance requirements for the brakes on a 2018-Present BMW 640i?
What are the maintenance requirements for the brakes on a 2018-Present BMW 640i?
Regular maintenance for the brakes on a 2018-Present BMW 640i includes inspecting brake pads every 10,000 miles and replacing them when worn down to 1/8 inch or less. Brake rotors should be inspected for warping or excessive wear every 15,000 miles and replaced as needed. Brake fluid should be changed every 30,000 to 50,000 miles, depending on usage and manufacturer recommendations. Additionally, the entire braking system should be visually inspected for leaks or damage during routine service intervals.
Q3 How do I install or replace the brakes on a 2018-Present BMW 640i?
How do I install or replace the brakes on a 2018-Present BMW 640i?
To replace the brakes on a 2018-Present BMW 640i, start by safely lifting the vehicle and removing the wheels. Next, remove the caliper and hang it from the suspension using a wire to prevent damage to the brake hose. Remove the old brake rotor and install the new one, ensuring it is properly secured. Reinstall the caliper with new brake pads, taking care not to damage the brake hose or ABS sensor wires. Tighten all bolts to the specified torque and bleed the brake system to remove any air bubbles. Finally, test the brakes by driving carefully and applying the brakes several times to ensure proper function.
Q4 How do I troubleshoot common brake issues on a 2018-Present BMW 640i?
How do I troubleshoot common brake issues on a 2018-Present BMW 640i?
Common brake issues on a 2018-Present BMW 640i include spongy brake pedals, unusual noises, or reduced braking performance. To diagnose, start by checking the brake fluid level and looking for signs of leaks. Inspect the brake pads and rotors for wear or damage. If the brake pedal feels spongy, air may be present in the system, requiring bleeding. For noise issues, check for warped rotors or loose brake components. If problems persist, consult a professional technician or refer to the BMW service manual for further diagnostic steps.
Q5 How can I optimize the performance of the brakes on a 2018-Present BMW 640i?
How can I optimize the performance of the brakes on a 2018-Present BMW 640i?
To optimize brake performance on a 2018-Present BMW 640i, consider upgrading to high-performance brake pads and rotors designed for your vehicle. Ensure proper bedding-in of new brake components by following the manufacturer's guidelines. Regularly clean and inspect the brake components to remove debris and corrosion. Use high-quality DOT 4 brake fluid and avoid mixing different brands or types. Additionally, driving techniques such as gradual braking and avoiding excessive heat buildup can help maintain optimal brake 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.
BMW 640i Brake Service Manual
Coming SoonComprehensive guide covering brake system specifications, maintenance, and repair procedures for the 2018-Present BMW 640i.
Technical Bulletin: Brake System Updates
Coming SoonOfficial updates and technical bulletins from BMW regarding brake system improvements and recalls for the 2018-Present 640i.
BMW 640i Brake Parts Catalog
Coming SoonDetailed catalog of genuine and compatible brake parts for the 2018-Present BMW 640i, including pads, rotors, and calipers.
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