BMW 340i 2012-2018 Brakes Specifications
Comprehensive guide to the brake specifications of the 2012-2018 BMW 340i, covering rotor sizes, calipers, pads, and more.
Brake System Specifications Overview Specifications
This document provides a detailed overview of the brake system specifications for the 2012-2018 BMW 340i. It includes technical details, maintenance recommendations, and key performance metrics. Use this guide to understand the components, specifications, and maintenance requirements of your vehicle's braking system. Refer to the sections below for specific information.
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To search for specific information, use the search functionality by typing keywords such as 'rotor size', 'caliper type', or 'brake fluid'. This will help you quickly locate relevant details within the document.
Navigate through the sections by scrolling or using the table of contents. Each section is divided into subsections with detailed specifications and technical points. Use the quick reference section for key metrics at a glance.
Key Specifications
Front Rotor Size
13.4 in (340 mm)
Rear Rotor Size
12.3 in (313 mm)
Front Caliper Type
4-piston fixed
Rear Caliper Type
2-piston floating
Brake Fluid Type
DOT 4
Available Specifications
Brake System Overview
This section provides a general overview of the braking system in the 2012-2018 BMW 340i, including its components and key features. It highlights the design and technology behind the system to ensure optimal performance and safety.
Brake System Overview
This section provides a general overview of the braking system in the 2012-2018 BMW 340i, including its components and key features. It highlights the design and technology behind the system to ensure optimal performance and safety.
System Components
- Dual-circuit braking system with diagonally split circuits
- Anti-lock Braking System (ABS) with Dynamic Brake Control (DBC)
- Electronic Brakeforce Distribution (EBD)
- Brake Assist
- Regenerative braking (if equipped with automatic transmission)
Key Features
- High-performance braking for sport-tuned handling
- Optimized pedal feel and response
- Corrosion-protected brake components
- Efficient heat dissipation
- Integrated parking brake system
Front Brake Specifications
This section details the specifications for the front brake system, including rotor size, caliper type, and pad material. These details are essential for maintenance, upgrades, and replacements.
Front Brake Specifications
This section details the specifications for the front brake system, including rotor size, caliper type, and pad material. These details are essential for maintenance, upgrades, and replacements.
Front Brake Components
- Rotor size: 13.4 inches (340 mm)
- Caliper type: 4-piston fixed front calipers
- Pad material: High-performance friction material
- Brake hose material: Braided steel
- Cooling system: Ventilated rotors with internal cooling vanes
Rear Brake Specifications
This section provides detailed specifications for the rear brake system, including rotor size, caliper type, and pad material. These specifications ensure balanced braking performance.
Rear Brake Specifications
This section provides detailed specifications for the rear brake system, including rotor size, caliper type, and pad material. These specifications ensure balanced braking performance.
Rear Brake Components
- Rotor size: 12.3 inches (313 mm)
- Caliper type: 2-piston floating rear calipers
- Pad material: High-performance friction material
- Brake hose material: Braided steel
- Cooling system: Solid rotors with integrated cooling channels
Maintenance & Upgrades
This section outlines recommended maintenance schedules and upgrade options for the brake system. Proper maintenance ensures optimal performance and longevity of the braking components.
Maintenance & Upgrades
This section outlines recommended maintenance schedules and upgrade options for the brake system. Proper maintenance ensures optimal performance and longevity of the braking components.
Maintenance Schedule
- Inspect brake pads every 12,000 miles
- Replace brake fluid every 30,000 miles
- Inspect rotors every 15,000 miles
- Clean and lubricate brake components annually
- Replace brake hoses every 50,000 miles or as needed
Upgrade Options
- High-performance brake pads for improved stopping power
- Cross-drilled or slotted rotors for enhanced cooling
- Stainless steel brake lines for consistent pedal feel
- Lightweight brake components for reduced unsprung weight
- Ceramic brake pads for reduced dust and noise
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Brakes Specifications
Overview
- Type
- Ventilated Disc Brakes
- Configuration
- Dual-circuit with ABS
- Platform
- F30/F31
- Material
- Cast Iron Rotors, Aluminum Calipers
- Location
- Front and Rear
Dimensions
- Front Rotor Diameter
- 13.4 in (340 mm)
- Front Rotor Thickness
- 1.0 in (25 mm)
- Rear Rotor Diameter
- 12.3 in (312 mm)
- Rear Rotor Thickness
- 0.9 in (22 mm)
- Front Caliper Piston Diameter
- 1.97 in (50 mm)
- Rear Caliper Piston Diameter
- 1.38 in (35 mm)
- Minimum Rotor Thickness
- 0.79 in (20 mm)
Materials
- Brake Calipers
- Aluminum Alloy
- Brake Rotors
- Cast Iron with Corrosion Protection Coating
- Brake Pads
- High-Friction Organic Compound
- Brake Lines
- Stainless Steel
Features
- Advanced Brake Technologies
-
- Dynamic Brake Control (DBC)
- Cornering Brake Control (CBC)
- Adaptive Brake Lights
- Automatic Brake Drying
- Brake Fade Compensation
- Caliper Design
-
- Floating Caliper Design
- 4-Piston Front Calipers
- 2-Piston Rear Calipers
- Lightweight Construction
- Rotor Technology
-
- Vented Rotors for Cooling
- Cross-Drilled Rotors for Heat Dissipation
- Riveted Rotors for Reduced Weight
- Anti-Corrosion Coating
- Brake Pad Technology
-
- Low-Dust Brake Pads
- High-Temperature Resistance
- Noise-Reducing Shims
- Wear Sensors
- Fluid And Hoses
-
- DOT 4 Brake Fluid
- Stainless Steel Brake Lines
- Flexible Brake Hoses
- Pressure-Resistant Hoses
Safety Features
- Anti-Lock Braking System
-
- Four-Wheel ABS
- Electronic Brakeforce Distribution
- Emergency Brake Assist
- Trailer Stability Control
- Dynamic Stability Control
-
- Integrated Chassis Management
- Automatic Stability Control
- Traction Control
- Dynamic Traction Control
- Automatic Emergency Braking
-
- Low-Speed AEB
- Pedestrian Detection
- Collision Warning System
Comfort Features
- Noise Reduction
-
- Acoustic Insulation
- Vibration-Dampening Mounts
- Low-Noise Brake Pads
- Pedal Feel
-
- Progressive Brake Pedal
- Adjustable Brake Booster
- Electronically Simulated Pedal Feedback
- Convenience
-
- Automatic Brake Hold
- Hill Descent Control
- Wet Brake Function
- Maintenance Alerts
-
- Brake Pad Wear Indication
- Brake Fluid Level Monitoring
- Electronic Brake System Diagnostics
Accessories
- Performance Upgrades
-
- High-Performance Brake Pads
- Upgraded Brake Rotors
- Lightweight Brake Kits
- Ceramic Brake Pads
- Replacement Kits
-
- Brake Pad Replacement Kits
- Rotor Resurfacing Kits
- Brake Fluid Replacement Kits
- Sensor Replacement Kits
- Tools And Equipment
-
- Brake Bleeding Kit
- Caliper Piston Rewind Tool
- Brake Rotor Resurfacing Tool
- Brake Pad Spreading Tool
Maintenance
- Service interval
-
- Inspect brake pads every 10,000 miles
- Inspect brake rotors every 15,000 miles
- Replace brake fluid every 30,000 miles
- Check brake lines every 30,000 miles
- Inspect brake sensors every 30,000 miles
- Aintenance Notes
-
- Use only DOT 4 brake fluid
- Replace brake pads when thickness reaches 1/8 inch
- Resurface rotors when thickness reaches minimum specification
- Clean brake components with approved solvents only
Warranty
- New Vehicle Warranty
- Miles: 50,000 milesYears: 4 yearsCoverage: Brake system components
- Certified Pre Owned Warranty
- Miles: Unlimited milesYears: 2 yearsCoverage: Brake system components
- Parts Warranty
- Miles: 24,000 milesYears: 2 yearsCoverage: Brake parts and accessories
- Extended Warranty
- Miles: 100,000 milesYears: 5 yearsCoverage: Brake system components
Production Details
- Manufacturer
- BMW Group
- Manufacturing Process
-
- CNC Machining
- High-Strength Casting
- Surface Coating
- Laser Cutting
- Robot Welding
- Quality Control
- inspection: Dimensional Tolerancing, Surface Finish Inspection, Material Hardness Testing, Leak TestingCertifications: ISO 9001, IATF 16949, UNECE R90
- Sustainability Practices
-
- Recyclable Materials
- Low-Emission Manufacturing
- Energy-Efficient Processes
- Waste Reduction Programs
- Production Metrics
- Annual Production: Over 100,000 unitsLead Time: 6-8 weeksQuality Rating: Tier 1 SupplierFailure Rate: Less than 1%
Service Information for brakes Service
Maintenance and service requirements specific to this component
- Inspect brake pads
- Inspect brake rotors
- Check brake fluid level
- Inspect brake lines
- Check ABS system operation
Perform visual inspection of all brake components
- Replace brake fluid
- Inspect brake sensors
- Clean brake components
- Check brake pedal feel
- Inspect emergency brake
Use only approved BMW brake fluid
- Replace brake pads
- Resurface or replace brake rotors
- Inspect and clean brake calipers
- Check brake hardware
- Test brake system performance
Replace components if wear exceeds specifications
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What are the technical specifications of the brakes on a 2012-2018 BMW 340i?
What are the technical specifications of the brakes on a 2012-2018 BMW 340i?
The 2012-2018 BMW 340i features vented disc brakes front and rear. Front brakes have 13.7-inch rotors with four-piston fixed calipers, while rear brakes use 13.2-inch rotors with two-piston fixed calipers. Brake pads are designed for high performance with a heat-resistant friction material. The system is compatible with DOT 4 brake fluid and is designed to work with ABS and DSC systems for optimal stopping performance.
Q2 What maintenance is required for the brakes on a 2012-2018 BMW 340i?
What maintenance is required for the brakes on a 2012-2018 BMW 340i?
Regular brake maintenance for the 2012-2018 BMW 340i includes inspecting brake pads every 10,000 miles, replacing them when worn below 3mm, and resurfacing or replacing rotors if warped or worn. Brake fluid should be changed every 30,000 miles, and the entire system should be inspected for leaks or damage. Proper maintenance ensures reliable braking performance and safety.
Q3 How do I install or replace brakes on a 2012-2018 BMW 340i?
How do I install or replace brakes on a 2012-2018 BMW 340i?
To replace brakes on a 2012-2018 BMW 340i, start by loosening the wheels and raising the vehicle. Remove the caliper and suspend it, then take out the old rotor and install the new one. Reattach the caliper with new pads, ensuring proper alignment. Bleed the brake system to remove air bubbles and test the brakes by driving carefully at low speeds to ensure proper function.
Q4 How do I troubleshoot common brake issues in a 2012-2018 BMW 340i?
How do I troubleshoot common brake issues in a 2012-2018 BMW 340i?
Common brake issues include spongy brakes, noise, or reduced stopping power. Check the brake fluid level and for leaks. Inspect pads and rotors for wear. If the pedal feels spongy, bleed the system. For noise, inspect pads and rotors for wear or debris. Consult a professional if issues persist or if ABS or DSC lights illuminate.
Q5 How can I optimize the braking performance of a 2012-2018 BMW 340i?
How can I optimize the braking performance of a 2012-2018 BMW 340i?
Optimize braking performance by using high-performance brake pads and rotors designed for your vehicle. Ensure brake fluid is fresh and of the correct DOT rating. Regularly clean and inspect brake components. Consider upgrading to performance brake lines for better pedal feel. Always follow manufacturer guidelines for part replacements and maintenance.
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 340i Brake Service Manual
Coming SoonComprehensive guide covering brake maintenance, repair, and technical specifications for the 2012-2018 BMW 340i.
Technical Bulletin: Brake System Updates
Coming SoonDetails updates and improvements to the brake system, including new part numbers and installation procedures.
BMW 340i Brake Parts Catalog
Coming SoonCatalog of approved brake parts, including pads, rotors, and fluid, compatible with the 2012-2018 BMW 340i.
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