BMW 330i 2019-present Brakes Specifications
Discover the detailed brake specifications for the 2019-Present BMW 330i, including rotor sizes, calipers, pads, and system features. Essential for maintenance, repairs, and upgrades.
Brake System Overview Specifications
This document provides a comprehensive overview of the brake system specifications for the 2019-Present BMW 330i. It includes detailed information on brake components, features, and maintenance guidelines. Use this document to understand the technical aspects of the braking system, identify key specifications, and learn how to properly maintain and service the brakes.
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 'brake fluid type.' This will help you quickly locate relevant details within the document.
Navigate through the document by exploring the major sections listed in the table of contents. Each section contains subsections with detailed technical specifications and guidelines. Use the quick reference section for key specifications at a glance.
Key Specifications
Front Rotor Size
348mm x 30mm
Rear Rotor Size
300mm x 20mm
Brake Fluid Type
DOT 4
Front Caliper Type
4-piston fixed
Rear Caliper Type
2-piston floating
Available Specifications
Brake System Components
This section provides detailed specifications for the key components of the BMW 330i brake system, including rotors, calipers, pads, and fluid. Understanding these components is essential for proper maintenance and upgrades.
Brake System Components
This section provides detailed specifications for the key components of the BMW 330i brake system, including rotors, calipers, pads, and fluid. Understanding these components is essential for proper maintenance and upgrades.
Front Brake Specifications
- Rotor size: 348mm x 30mm
- Caliper type: 4-piston fixed
- Pad material: High-performance composite
- Cooling system: Ventilated rotors
- Fastener type: Bolt-on design
Rear Brake Specifications
- Rotor size: 300mm x 20mm
- Caliper type: 2-piston floating
- Pad material: High-performance composite
- Cooling system: Solid rotors
- Fastener type: Bolt-on design
Brake Fluid and Hydraulic System
- Brake fluid type: DOT 4
- Reservoir capacity: 0.5 liters
- Hydraulic system pressure: Up to 120 bar
- ABS module: Integrated with DSC
- Brake lines: Stainless steel
Brake System Features
This section highlights the advanced features of the BMW 330i brake system, including safety technologies and performance enhancements. These features contribute to the vehicle's overall driving dynamics and safety.
Brake System Features
This section highlights the advanced features of the BMW 330i brake system, including safety technologies and performance enhancements. These features contribute to the vehicle's overall driving dynamics and safety.
Safety Features
- Anti-lock Braking System (ABS)
- Dynamic Stability Control (DSC)
- Automatic Brake Drying (ABD)
- Emergency Brake Assist (EBA)
- Cornering Brake Control (CBC)
Performance Features
- M Sport Brake option available
- Adaptive Brake Assist
- Electronic Brakeforce Distribution (EBD)
- Brake Standby function
- Start-off Assistant
Maintenance and Servicing
Proper maintenance is crucial for ensuring the optimal performance and longevity of the brake system. This section provides guidelines for servicing and replacing brake components.
Maintenance and Servicing
Proper maintenance is crucial for ensuring the optimal performance and longevity of the brake system. This section provides guidelines for servicing and replacing brake components.
Service Intervals
- Brake fluid change: Every 30,000 miles or 2 years
- Brake pad inspection: Every 12,000 miles
- Rotor inspection: Every 18,000 miles
- Brake line inspection: Every 30,000 miles
- Caliper inspection: Every 36,000 miles
Replacement Guidelines
- Brake pads: Replace when thickness is below 3mm
- Rotors: Replace if warped or below minimum thickness
- Brake fluid: Replace every 30,000 miles or 2 years
- Brake lines: Replace if signs of wear or damage
- Calipers: Replace if leaking or damaged
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Brakes Specifications
Overview
- Type
- Dual-circuit braking system with ABS
- Configuration
- Front-engine, rear-wheel drive (xDrive all-wheel drive optional)
- Platform
- Cluster Architecture (CLAR)
- Material
- Steel brake discs with vented rotors
- Location
- Front and rear axle
Dimensions
- Front Brake Rotor Diameter
- 13.0 in (330 mm)
- Front Brake Rotor Thickness
- 1.1 in (28 mm)
- Rear Brake Rotor Diameter
- 12.8 in (325 mm)
- Rear Brake Rotor Thickness
- 0.9 in (23 mm)
- Front Brake Pad Area
- 190.0 sq in (1226 cm2)
- Front Caliper Piston Diameter
- 1.8 in (45 mm)
- Rear Caliper Piston Diameter
- 1.5 in (38 mm)
- Master Cylinder Bore
- 0.87 in (22 mm)
Materials
- Brake Discs
- Steel with corrosion-resistant coating
- Brake Pads
- Semi-metallic with low metallic content
- Brake Rotors
- Steel with vented design
- Brake Lines
- Stainless steel
- Calipers
- Aluminum alloy
Features
- Advanced Braking Technologies
-
- Dynamic Brake Control (DBC)
- Cornering Brake Control (CBC)
- Emergency Brake Assistant
- Brake Fade Compensation
- Auto Hold function
- Brake Drying feature
- Performance Features
-
- Optimized pedal feel
- Reduced stopping distances
- Improved heat dissipation
- Lightweight design
- Noise reduction measures
Safety Features
- Automatic Emergency Braking
-
- AEB with pedestrian detection
- Brake assist system
- Electronic Brakeforce Distribution
- Adaptive EBD for varying load conditions
- Anti-Lock Braking System
- Four-channel ABS with electronic pressure control
- Emergency Brake Assistant
- Automatic emergency braking in critical situations
Comfort Features
- Convenience Features
-
- Auto Hold function
- Hill Descent Control
- Brake energy regeneration
- Start/Stop technology
- Parking Brake Assistant
- Noise Reduction
- Optimized rotor and pad design for reduced NVH
Accessories
- Brake Accessories
-
- BMW brake wear sensors
- High-performance brake pads
- Brake fluid test kit
- Brake rotor replacement kit
Maintenance
- Service interval
- First service at 12,500 miles (20,000 km) or 12 months
- Service Items
-
- Brake pad inspection
- Brake rotor inspection
- Brake fluid check
- Brake sensor check
- Brake hose inspection
- Maintenance Notes
- Use BMW-approved brake fluid (DOT 4 LV)
Warranty
- New Vehicle
- Miles: 50000Years: 4Coverage: Bumper-to-bumper including brake components
- Roadside Assistance
- Miles: 50000Years: 4Coverage: 24/7 roadside assistance
- Brake Components
- Miles: 24000Years: 2Coverage: Brake pads and rotors
- Corrosion Perforation
- Miles: 120000Years: 12Coverage: Brake components against rust perforation
Production Details
- Manufacturer
- Brembo S.p.A.
- Manufacturing Process
-
- Casting of brake rotors
- Machining and drilling operations
- Surface coating and finishing
- Assembly and testing
- Quality Control
- Dimensional inspection: Precision measurement of rotor thickness and diameterPerformance Testing: Testing under simulated driving conditionsMaterial Quality: Certification of materials used
- Sustainability Practices
- Use of recycled materials in brake components
- Production Metrics
- Weight Reduction: 10% weight reduction compared to previous modelsNoise Reduction: 15% reduction in braking noise
Service Information for brakes Service
Maintenance and service requirements specific to this component
- Inspect brake pads for wear
- Measure brake rotor thickness
- Check brake fluid level and condition
- Test brake sensors
- Inspect brake hoses for damage
Use only BMW-approved brake fluid. Check for any software updates for brake systems.
- Replace brake pads if worn below 3mm
- Inspect brake rotors for excessive wear
- Bleed brake system if fluid is contaminated
- Check brake caliper operation
- Inspect parking brake function
If brake pads are replaced, also inspect rotors for replacement. Use a torque wrench for caliper bolts.
- Replace brake rotors if excessive warping is detected
- Replace brake hoses if cracking is found
- Perform full brake system flush
- Check ABS sensor operation
- Test brake assist systems
Major service interval. Ensure all safety systems are tested after service. Use specialized tools for ABS testing.
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What are the technical specifications of the brakes on a 2019-Present BMW 330i?
What are the technical specifications of the brakes on a 2019-Present BMW 330i?
The 2019-Present BMW 330i features fixed calipers front and rear. Front brake rotors are 13 inches in diameter, while rear rotors are 12.3 inches. The brake calipers are aluminum, and the rotors are ventilated cast iron. The vehicle uses semi-metallic brake pads. These specifications ensure optimal braking performance and are compatible with other BMW models from the same generation.
Q2 What maintenance is required for the brakes on a 2019-Present BMW 330i?
What maintenance is required for the brakes on a 2019-Present BMW 330i?
Regular brake maintenance for the 2019-Present BMW 330i includes inspecting brake pads every 12,500 miles and replacing them when worn below 3mm. Brake rotors should be inspected for wear and warping every 30,000 miles. Brake fluid should be changed every 30,000 to 50,000 miles. Always use BMW-approved parts to maintain performance and safety.
Q3 How do I install or replace the brakes on a 2019-Present BMW 330i?
How do I install or replace the brakes on a 2019-Present BMW 330i?
To replace the brakes, start by raising the vehicle and removing the wheels. Disconnect the caliper, remove the old pads and rotors, and install the new ones. Reconnect the caliper and bleed the brake system if necessary. Test the brakes thoroughly. Always follow proper safety procedures and consult a professional if unsure.
Q4 How do I troubleshoot common brake issues on a 2019-Present BMW 330i?
How do I troubleshoot common brake issues on a 2019-Present BMW 330i?
Common issues include squeaking (worn pads), spongy pedal (air in lines), and vibration (warped rotors). Inspect pads, bleed the system, and resurface rotors as needed. Consult a professional for persistent issues to ensure safety and proper function.
Q5 How can I optimize the performance of my brakes on a 2019-Present BMW 330i?
How can I optimize the performance of my brakes on a 2019-Present BMW 330i?
Optimize brake performance by upgrading to high-performance pads and using high-temperature brake fluid. Regularly clean rotors to prevent debris buildup. After upgrades, test drive the vehicle to ensure proper function and responsiveness.
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 330i Service Manual
Coming SoonComprehensive guide covering maintenance and repair procedures for the BMW 330i.
Technical Bulletin: Brake System Update
Coming SoonDetails updates to improve brake system performance and reliability.
BMW Brake Parts Catalog
Coming SoonList of approved brake components for the BMW 330i.
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