BMW 745i 2020-present Brakes Specifications
BMW 745i 2020-present

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.

Updated

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

To search for specific information, use the keyword search function. Enter terms like 'rotor size,' 'brake pads,' or 'ABS' to find relevant details quickly.

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.

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.

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.

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

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: 50,000
Years: 4
Coverage: All brake components excluding wear items
Powertrain
Miles: 80,000
Years: 5
Coverage: Brake system components related to powertrain
Corrosion Perforation
Miles: 12 years
Years: Unlimited
Coverage: Brake lines and discs against rust-through
Roadside Assistance
Miles: Unlimited
Years: 4
Coverage: 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 inspection
Testing: Dynamic performance testing on rigs
Certification: Compliance with global brake standards
Documentation: 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 day
Quality Rating: 99.9% defect-free rate
Supplier Network: Global network of tier 1 suppliers
Certifications: ISO 9001, IATF 16949

Service Information for brakes Service

Maintenance and service requirements specific to this component

12,000
12
  • 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

25,000
24
  • 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

50,000
48
  • 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?

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?

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?

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?

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?

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 Soon

Comprehensive guide covering maintenance, repair, and technical specifications for the 2020-Present BMW 745i braking system.

Technical Bulletin: Brake System Updates

Coming Soon

Official updates and technical bulletins from BMW regarding the braking system of the 2020-Present BMW 745i.

BMW Parts Catalog

Coming Soon

Detailed catalog of genuine BMW parts and accessories for the 2020-Present BMW 745i braking system.

About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

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