BMW i4 2022-present Brakes Specifications
Discover detailed brake specifications for the 2022-present BMW i4, including rotor sizes, caliper types, and advanced braking features. Learn about maintenance, repair, and upgrade options for optimal performance and safety.
Brake System Overview Specifications
This document provides a comprehensive overview of the brake specifications for the 2022-Present BMW i4. It includes detailed information about the braking system, performance metrics, and maintenance requirements. Use this guide to understand the key components of the brake system, how to interpret technical specifications, and how to perform routine maintenance tasks. 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 search functionality by typing keywords related to the brake system, such as 'rotor size,' 'caliper type,' or 'braking distance.' This will help you quickly locate relevant details within the document.
To navigate through the document, use the sections listed in the table of contents. Each section is dedicated to a major aspect of the brake system, with subsections providing detailed information. Click on a section title to expand its contents and access specific details.
Key Specifications
Front Brake Rotor Size
348mm
Rear Brake Rotor Size
339mm
100-0 km/h Braking Distance
36m
Regenerative Braking Deceleration
0.3g
Brake Fluid Change Interval
30,000 miles / 36 months
Available Specifications
Brake System Overview
This section provides a general overview of the BMW i4's brake system, including the types of brakes used, key components, and their functions. It also covers the integration of advanced braking technologies.
Brake System Overview
This section provides a general overview of the BMW i4's brake system, including the types of brakes used, key components, and their functions. It also covers the integration of advanced braking technologies.
Front Brake Specifications
- Ventilated disc brakes with 348mm diameter
- Four-piston fixed calipers
- High-performance brake pads
- Lightweight aluminum construction
- Optional: M Sport brakes with larger rotors
Rear Brake Specifications
- Ventilated disc brakes with 339mm diameter
- Single-piston floating calipers
- High-friction brake pads
- Integrated parking brake function
- Optional: M Sport brakes with larger rotors
Performance and Technology
This section details the performance capabilities and advanced technologies integrated into the BMW i4's brake system. It includes information on braking distances, regenerative braking, and electronic brakeforce distribution.
Performance and Technology
This section details the performance capabilities and advanced technologies integrated into the BMW i4's brake system. It includes information on braking distances, regenerative braking, and electronic brakeforce distribution.
Braking Performance
- 100-0 km/h (62-0 mph) braking distance: ~36 meters
- 80-0 km/h (50-0 mph) braking distance: ~41 meters
- Electronic Brakeforce Distribution (EBD)
- Automatic Brake Drying (ABD)
- Optional: Adaptive Brake Assist
Regenerative Braking
- High-efficiency regenerative braking system
- Up to 0.3g deceleration through regenerative braking
- Adaptive regeneration based on driving mode
- Intelligent energy recuperation
- Customizable regeneration settings
Maintenance and Service
This section provides guidelines for maintaining and servicing the brake system of the BMW i4. It includes recommended inspection intervals, replacement schedules, and tips for optimal brake performance.
Maintenance and Service
This section provides guidelines for maintaining and servicing the brake system of the BMW i4. It includes recommended inspection intervals, replacement schedules, and tips for optimal brake performance.
Maintenance Schedule
- Inspect brake pads every 12,000 miles or 12 months
- Inspect brake rotors every 24,000 miles or 24 months
- Replace brake fluid every 30,000 miles or 36 months
- Check brake lines and hoses every 30,000 miles
- Clean brake components as needed
Service Tips
- Use BMW-approved brake pads and rotors
- Bleed the brake system after fluid replacement
- Check for wear on brake hardware
- Inspect the parking brake function regularly
- Avoid using low-quality aftermarket components
Dimensions and Specifications
This section provides detailed dimensions and technical specifications for the BMW i4's brake system. It includes measurements for brake rotors, calipers, and other components.
Dimensions and Specifications
This section provides detailed dimensions and technical specifications for the BMW i4's brake system. It includes measurements for brake rotors, calipers, and other components.
Brake Rotor Dimensions
- Front rotor thickness: 30mm
- Rear rotor thickness: 28mm
- Front rotor hub size: 5x120mm
- Rear rotor hub size: 5x120mm
- Minimum rotor thickness: 22mm (front), 20mm (rear)
Caliper and Pad Specifications
- Front caliper piston diameter: 40mm
- Rear caliper piston diameter: 38mm
- Pad thickness: 15mm (front), 12mm (rear)
- Pad material: High-performance organic compound
- Optional: Ceramic composite pads
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Brakes Specifications
Overview
- Type
- disc brakes
- Configuration
- ventilated front and solid rear discs
- Platform
- BMW CLAR (Cluster Architecture) with eDrive technology
- Material
- cast iron discs with aluminum calipers
- Location
- front and rear axles
Dimensions
- Front Rotor Diameter
- 13.7 in (348 mm)
- Rear Rotor Diameter
- 13.4 in (341 mm)
- Front Rotor Thickness
- 1.1 in (28 mm)
- Rear Rotor Thickness
- 0.9 in (23 mm)
- Front Caliper Piston Diameter
- 1.7 in (43 mm)
- Rear Caliper Piston Diameter
- 1.4 in (36 mm)
- Minimum Brake Pad Thickness
- 0.12 in (3 mm)
- Maximum Brake Pad Wear
- 0.04 in (1 mm)
Materials
- Rotors
- cast iron with corrosion-resistant coating
- Brake Pads
- semi-metallic composite material
- Calipers
- aluminum alloy with anodized finish
- Brake Lines
- stainless steel with Teflon inner liners
Features
- Performance
-
- high thermal stability under repeated braking
- consistent pedal feel across temperature ranges
- optimized brake cooling through aerodynamic ducts
- low dust and noise operation
- high fade resistance
- Heat Management
-
- ventilated front discs for heat dissipation
- rear disc cooling through air circulation
- brake cooling ducts integrated into front bumper
- thermal shielding for brake components
- Control Systems
-
- electronic brakeforce distribution (EBD)
- anti-lock braking system (ABS)
- dynamic stability control (DSC)
- automatic emergency braking (AEB)
- regenerative braking integration
- Wear indication
-
- visual wear indicators on brake pads
- audible wear warning when pads reach minimum thickness
- dashboard warning light for brake system status
- Assistance
-
- automatic hold function
- hill descent control integration
- traffic jam assistant with adaptive braking
- emergency braking assistant
Safety Features
- Anti-Lock Braking
-
- four-channel ABS with electronic brakeforce distribution
- advanced traction control integration
- cornering brake control
- Emergency Braking
-
- automatic emergency braking up to 50 mph
- pedestrian and cyclist detection
- forward collision warning
- Stability Control
-
- dynamic stability control (DSC)
- dynamic traction control (DTC)
- electronic differential lock control
- Assist Systems
-
- parking assistant with automatic braking
- rear collision preparation
- active driving assistant
Comfort Features
- Noise Reduction
-
- noise-dampening brake pads
- insulated brake components
- optimized rotor design for reduced vibration
- Pedal Feel
-
- progressive pedal feel with early bite point
- consistent pedal feedback
- electrically assisted brake actuation
- Convenience
-
- auto-hold function
- stop-and-go functionality in traffic
- creep control for low-speed maneuvering
- Assistivity
-
- adaptive cruise control with stop-and-go
- steering and lane control assistant
- traffic jam assistant with braking support
Accessories
- High Performance
-
- M Sport brake upgrade package
- high-performance brake pads
- upgraded rotor discs with higher thermal capacity
- Replacement
-
- OEM brake pads
- OEM rotor discs
- brake fluid (DOT 4 LV)
- sensor kits
- Customization
-
- colored brake calipers
- brake caliper covers
- upgraded brake lines
- performance brake cooling kits
Maintenance
- Service interval
- 12,500 miles or 12 months
- Service Items
-
- Brake fluid check and replacement
- Brake pad wear inspection
- Rotor disc inspection and cleaning
- Brake line inspection
- ABS sensor check
- Emergency braking system test
- Maintenance Notes
-
- Use BMW approved brake fluid (DOT 4 LV)
- Replace brake pads when wear indicator is triggered
- Clean brake rotors with approved brake cleaner
- Check brake lines for damage or corrosion annually
Warranty
- Basic
- Miles: 50,000Years: 4Coverage: parts and labor
- Maintenance
- Miles: 36,000Years: 3Coverage: routine brake services
- Corrosion
- Miles: unlimitedYears: 12Coverage: perforation of brake components
- Battery
- Miles: 100,000Years: 8Coverage: high-voltage battery components
Production Details
- Manufacturer
- BMW Group
- Manufacturing Process
-
- precision casting of brake components
- machining and surface finishing
- assembly and quality testing
- painting and corrosion protection
- Quality Control
- inspection: dimensional and functional testingCertification: ISO 9001:2015Standards: meet or exceed DIN and SAE standards
- Sustainability
-
- use of recycled materials in production
- energy-efficient manufacturing processes
- reducing carbon footprint in supply chain
- Production Metrics
- Annual Production: over 150,000 unitsManufacturing Countries: Germany, China, USASupplier Network: global network of approved suppliers
Service Information for Brakes Service
Maintenance and service requirements specific to BMW i4 brakes
- Brake fluid level check
- Brake pad wear inspection
- Brake rotor inspection
- ABS sensor check
- Brake line inspection
- Emergency braking system test
Replace brake pads if wear indicator is triggered or pads are below minimum thickness
- Brake fluid replacement
- Brake pad replacement if worn
- Rotor resurfacing or replacement
- Clean brake components
- Check brake system for leaks
- Update brake control module if necessary
Use BMW approved DOT 4 LV brake fluid only
- Major brake system overhaul
- Replace all brake pads
- Inspect and replace brake rotors
- Replace brake lines if damaged
- Bleed brake system
- Performance test of braking system
Recommended to use BMW certified service center for major brake services
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What are the technical specifications of the brakes on the 2022-Present BMW i4?
What are the technical specifications of the brakes on the 2022-Present BMW i4?
The 2022-Present BMW i4 features ventilated brake discs, with front discs measuring 348mm and rear discs at 345mm. The braking system is compatible with the BMW eDrive technology, ensuring optimal performance in electric vehicle operations.
Q2 What maintenance is required for the brakes on the BMW i4?
What maintenance is required for the brakes on the BMW i4?
Maintenance should be performed every 12,000-15,000 miles. This includes inspecting brake pads, measuring rotor thickness, checking brake fluid levels, and cleaning brake components. Use BMW-approved brake fluid DOT 4.
Q3 How do I install or replace the brakes on the BMW i4?
How do I install or replace the brakes on the BMW i4?
1. Jack the vehicle and remove the wheels. 2. Remove the caliper and suspend it. 3. Remove old pads and rotors if necessary. 4. Install new pads and rotors. 5. Reassemble and bleed the brake system. Use genuine BMW parts.
Q4 How do I troubleshoot common brake issues in the BMW i4?
How do I troubleshoot common brake issues in the BMW i4?
Squeaking may indicate worn pads. Vibration could mean warped rotors. A spongy pedal suggests air in the system. Check pad wear, resurface rotors, and bleed the brakes if necessary.
Q5 How can I optimize the performance of the BMW i4 brakes?
How can I optimize the performance of the BMW i4 brakes?
Bed new pads according to manufacturer instructions. Use high-performance brake fluid. Regularly inspect components. Practice gradual braking to maintain even wear and optimal stopping power.
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 i4 Service Manual
Coming SoonCovers brake inspection and replacement procedures.
BMW i4 Technical Bulletin - Brake System Updates
Coming SoonLatest updates and maintenance recommendations.
BMW i4 Parts Catalog
Coming SoonList of approved brake components.
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