BMW 745i 2020-present Brakes Specifications
Find detailed brake specifications for the 2020-Present BMW 745i, including rotor sizes, calipers, pads, and ABS systems. Perfect for maintenance, repairs, and upgrades.
Brake Specifications Overview Specifications
This document provides a detailed overview of the brake specifications for the 2020-Present BMW 745i. It includes technical details, system components, and maintenance recommendations. Use this guide to understand the braking system's capabilities, components, and proper maintenance procedures. Navigate through the sections to find specific information or use the quick reference section for key specifications.
How to Use
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Navigate through the document by selecting sections from the table of contents. Each section contains subsections with detailed technical specifications and explanations.
Key Specifications
Front Brake Rotor Size
374mm x 36mm
Rear Brake Rotor Size
366mm x 24mm
Brake Caliper Type
4-piston (front), 2-piston (rear)
Brake Pad Material
High-friction organic compound
ABS System Type
Dynamic Brake Control with ABS
Available Specifications
Brake System Overview
The BMW 745i features a high-performance braking system designed for optimal stopping power and control. This section provides an overview of the key components and technologies integrated into the braking system.
Brake System Overview
The BMW 745i features a high-performance braking system designed for optimal stopping power and control. This section provides an overview of the key components and technologies integrated into the braking system.
Key Components
- Four-wheel ventilated disc brakes
- Lightweight aluminum multi-piston calipers
- Internally ventilated and perforated brake discs
- High-performance brake pads with advanced friction materials
Advanced Brake Technologies
- Anti-lock Braking System (ABS) with Dynamic Brake Control
- Dynamic Stability Control (DSC) integration
- Automatic Brake Drying function
- Fade Compensation and Brake Standby features
Brake Components
This section details the specifications and features of the individual brake components, including rotors, calipers, and pads.
Brake Components
This section details the specifications and features of the individual brake components, including rotors, calipers, and pads.
Front Brake Specifications
- Rotor size: 374mm x 36mm
- Caliper type: 4-piston fixed aluminum
- Pad material: High-friction organic compound
- Cooling system: Ventilated and perforated discs
Rear Brake Specifications
- Rotor size: 366mm x 24mm
- Caliper type: 2-piston floating aluminum
- Pad material: High-friction organic compound
- Cooling system: Ventilated discs
Safety and Performance Features
The braking system in the BMW 745i is equipped with advanced safety and performance features to enhance driver control and safety.
Safety and Performance Features
The braking system in the BMW 745i is equipped with advanced safety and performance features to enhance driver control and safety.
Electronic Brakeforce Distribution
- Optimized brake force distribution for varying driving conditions
- Integration with DSC for improved stability
- Reduced stopping distances under emergency braking
- Enhanced traction control during acceleration
Emergency Braking Assistance
- Automatic emergency braking function
- Pre-tensioning of seat belts during hard braking
- Activation of hazard lights during panic stops
- Integration with adaptive cruise control
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Brakes Specifications
Overview
- Type
- Ventilated Disc Brakes
- Configuration
- Dual-circuit with ABS
- Front Brake Caliper
- 4-piston fixed caliper
- Rear Brake Caliper
- Single-piston floating caliper
- Material
- Cast Iron and Aluminum
- Platform
- BMW G11/G12 Series
Dimensions
- Front Brake Disc Size
- 395 mm (15.55 in)
- Rear Brake Disc Size
- 345 mm (13.58 in)
- Front Brake Disc Thickness
- 36 mm (1.42 in)
- Rear Brake Disc Thickness
- 20 mm (0.79 in)
- Brake Pad Size Front
- 42 mm (1.65 in) wide x 60 mm (2.36 in) deep
- Brake Pad Size Rear
- 38 mm (1.50 in) wide x 50 mm (1.97 in) deep
- Brake Rotor Diameter
- Front: 395 mm, Rear: 345 mm
Materials
- Brake Discs
- Cast Iron with Dimpled and Slotted Design
- Brake Pads
- High-friction organic compound with wear sensors
- Calipers
- Aluminum alloy with chrome-plated pistons
- Brake Lines
- Stainless steel reinforced rubber hoses
- Rotors
- Ventilated with internal cooling vanes
Features
- Performance
-
- Adaptive Brake Assist
- Dynamic Brake Control
- Automatic Brake Drying in wet conditions
- Fade-free performance under heavy use
- Electronic parking brake with auto hold function
- Safety integration
-
- Integrated with DSC (Dynamic Stability Control)
- Advanced ABS with Cornering Brake Control
- Emergency braking preparation
- Automatic emergency call in critical situations
- Brake Assist with Active Driving Assistant
- Control Systems
-
- Electronically controlled brake force distribution
- Real-time brake system monitoring
- Active pedal feedback during autonomous driving
- Smart brake cooling system
- Integral Brake Assistant
- Design
-
- Lightweight brake components for reduced unsprung mass
- Aerodynamically optimized brake cooling ducts
- Visually concealed brake components for aerodynamics
- Optional M Sport brake system with larger discs
- Ceramic brake option for high-performance use
- Connectivity
-
- Brake system data integration with iDrive
- Real-time brake wear monitoring via BMW ConnectedDrive
- Service due notifications for brake components
- Remote diagnostics capability
- Over-the-air updates for brake system software
Safety Features
- Emergency Braking
-
- Automatic emergency braking at speeds up to 50 mph
- Pedestrian and cyclist detection
- Forward collision warning with visual and audible alerts
- Active braking in low-speed traffic situations
- Stability Control
-
- Dynamic Brake Control (DBC)
- Cornering Brake Control (CBC)
- Brake Standby feature for instant response
- Fading Compensation for consistent stopping power
- Brake Assist
-
- Driver-initiated panic braking
- Electronic brake force distribution
- Brake pre-fill during aggressive driving
- Smart release of brake pressure during ABS intervention
- Monitoring Systems
-
- Brake pad wear sensors
- Brake fluid level monitoring
- Real-time disc wear analysis
- Automatic detection of brake system faults
Comfort Features
- Noise Reduction
-
- Acoustic optimization of brake components
- Anti-squeal shims on brake pads
- Sound-dampening brake disc coatings
- Silent braking in electric mode
- Pedal Feel
-
- Progressive brake pedal with variable resistance
- Electrically assisted brake pedal for smooth operation
- Adjustable brake pedal feel through driving modes
- Haptic feedback during autonomous driving
- Automatic Features
-
- Auto Hold function for hill starts
- Automatic brake engagement in traffic jams
- One-pedal driving in electric mode
- Creep control for smooth low-speed maneuvers
- intelligent Systems
-
- Predictive braking based on navigation data
- Adaptive braking for varying road conditions
- Smart integration with driver assistance systems
- Energy recuperation during deceleration
Accessories
- High Performance
-
- M Sport brake system with larger discs
- Ceramic brake discs for high-temperature use
- Upgraded brake pads for track use
- Lightweight brake rotors
- Convenience
-
- Brake cleaning kit
- Brake rotor resurfacing service
- Brake fluid flush kit
- Brake wear sensor replacement kit
- Design
-
- M Sport brake caliper covers
- Colored brake calipers
- Brake disc coating options
- Carbon fiber brake ducts
Maintenance
- Service interval
- 12,000 to 15,000 miles or 12 months
- Service Items
-
- Brake pad wear inspection
- Brake disc thickness measurement
- Brake fluid level check
- Brake line inspection
- Brake caliper operation test
- Parking brake function test
- Maintenance Notes
-
- Replace brake pads when wear reaches 1-2 mm
- Replace brake discs when thickness falls below 21 mm
- Change brake fluid every 20,000 miles
- Inspect parking brake cables every 10,000 miles
- Clean brake rotors every 30,000 miles
Warranty
- Bumper To Bumper
- Miles: 50,000Years: 4Coverage: All brake components excluding wear items
- Powertrain
- Miles: 80,000Years: 5Coverage: Brake system components related to powertrain
- Corrosion Perforation
- Miles: 12 yearsYears: UnlimitedCoverage: Brake lines and discs against rust-through
- Roadside Assistance
- Miles: UnlimitedYears: 4Coverage: Brake system related emergencies
Production Details
- Manufacturer
- BMW Group
- Manufacturing Process
-
- CNC machining of brake components
- High-temperature treatment of brake discs
- Aluminum alloy casting for calipers
- Advanced surface coating for corrosion resistance
- Laser cutting of brake lines
- Quality Control
- inspection: 100% visual and dimensional inspectionTesting: Dynamic performance testing on rigsCertification: Compliance with global brake standardsDocumentation: Traceability of all components
- Sustainability Practices
-
- Recycling of production materials
- Energy-efficient manufacturing processes
- Use of eco-friendly coatings
- Lightweight design for reduced resource use
- Production Metrics
- Daily Output: Over 1,000 brake systems per dayQuality Rating: 99.9% defect-free rateSupplier Network: Global network of tier 1 suppliersCertifications: ISO 9001, IATF 16949
Service Information for brakes Service
Maintenance and service requirements specific to this component
- Inspect brake pads for wear
- Measure brake disc thickness
- Check brake fluid level and condition
- Inspect brake lines for damage
- Test brake caliper operation
- Check parking brake function
Recommended service interval for average driving conditions
- Replace brake pads if worn below 2 mm
- Clean or replace brake rotors
- Flush and replace brake fluid
- Inspect brake calipers for leaks
- Test ABS and DSC systems
- Check brake wear sensors
Intermediate service including fluid change and component checks
- Replace brake discs if worn below 21 mm
- Overhaul brake calipers if necessary
- Replace brake pads and hardware
- Inspect and replace brake lines if damaged
- Perform comprehensive brake system test
- Check and top up brake fluid
Major service including possible component replacement
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What are the technical specifications of the brakes on a 2020-Present BMW 745i?
What are the technical specifications of the brakes on a 2020-Present BMW 745i?
The 2020-Present BMW 745i features a high-performance braking system with 4-wheel ventilated disc brakes. The front brakes include 374mm x 36mm discs with 4-piston fixed calipers, while the rear brakes feature 366mm x 24mm discs with 2-piston floating calipers. The system is compatible with BMW's Dynamic Stability Control (DSC) and Anti-lock Braking System (ABS). Brake rotors are made of high-carbon cast iron for durability, and the brake pads are designed for optimal heat dissipation and fade resistance.
Q2 What maintenance is required for the brakes on a 2020-Present BMW 745i?
What maintenance is required for the brakes on a 2020-Present BMW 745i?
Regular brake maintenance for the 2020-Present BMW 745i includes inspecting brake pads every 10,000 miles and replacing them when worn below 3mm. Brake rotors should be inspected for warping or excessive wear every 15,000 miles and resurfaced or replaced as needed. Brake fluid should be changed every 2 years or 25,000 miles, and the entire braking system should be checked for leaks and proper function during routine servicing.
Q3 How do I replace the brake pads on a 2020-Present BMW 745i?
How do I replace the brake pads on a 2020-Present BMW 745i?
To replace the brake pads on a 2020-Present BMW 745i, start by safely lifting the vehicle and removing the wheels. Next, remove the caliper bolts and slide the caliper off the rotor. Remove the old brake pads and install the new ones, ensuring proper alignment. Reinstall the caliper and tighten the bolts to the specified torque. Repeat for all wheels, then bleed the brake system if necessary. Finally, test the brakes by driving carefully and applying the brakes several times to seat the new pads.
Q4 What are common brake issues in the 2020-Present BMW 745i and how can they be diagnosed?
What are common brake issues in the 2020-Present BMW 745i and how can they be diagnosed?
Common brake issues in the 2020-Present BMW 745i include brake pad wear, rotor warping, and brake fluid leaks. Diagnose issues by inspecting for signs of wear, such as squeaking or grinding noises, and checking the brake fluid level. Use a scan tool to check for any trouble codes related to the braking system. Inspect the brake pads and rotors for excessive wear, and test the brake fluid for contamination. Address any issues promptly to maintain safety and performance.
Q5 How can I optimize the performance of the brakes on a 2020-Present BMW 745i?
How can I optimize the performance of the brakes on a 2020-Present BMW 745i?
To optimize brake performance on a 2020-Present BMW 745i, ensure proper maintenance by replacing worn brake pads and resurfacing or replacing warped rotors. Upgrade to high-performance brake pads and rotors if desired, and use the correct specification of brake fluid. Drive smoothly and avoid aggressive braking to reduce wear. Consider upgrading to ceramic brake pads for reduced dust and noise. Finally, ensure proper wheel alignment to prevent uneven brake wear.
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 745i Service Manual
Coming SoonComprehensive guide covering maintenance, repair, and technical specifications for the 2020-Present BMW 745i braking system.
Technical Bulletin: Brake System Updates
Coming SoonOfficial updates and technical bulletins from BMW regarding the braking system of the 2020-Present BMW 745i.
BMW Parts Catalog
Coming SoonDetailed catalog of genuine BMW parts and accessories for the 2020-Present BMW 745i braking system.
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