BMW 340i 2005-2011

BMW 340i 2005-2011 Brakes Specifications

Detailed technical specifications and maintenance guidelines for the 2005-2011 BMW 340I braking system, including brake pads, rotors, calipers, ABS, and more.

Updated Oct 24, 2023

Overview Specifications

Comprehensive description of the brakes specifications for the 2005-2011 BMW 340I, including key features, measurements, and technical details. This section provides detailed information on the braking system, including components, performance metrics, and maintenance guidelines.

How to Use

Use the search function to locate specific brake specifications by entering keywords such as 'brake disc diameter', 'pad thickness', or 'brake fluid type'.

Navigate through the brakes documentation by selecting the relevant section from the table of contents. Each section is organized by component type and includes subsections for detailed specifications.

Key Specifications

Front Brake Disc Diameter

348 mm

Rear Brake Disc Thickness

24 mm

Brake Fluid Type

DOT 4

Front Brake Pad Thickness (New)

12 mm

Brake Fluid Replacement Interval

2 years or 30,000 miles

Available Specifications

Brake Discs

Detailed specifications and technical information about the brake discs used in the 2005-2011 BMW 340I.

Front Brake Discs

Diameter: 348 mm
Thickness: 30 mm
Material: High-carbon cast iron
Ventilation: Cross-drilled and vented for improved cooling
Minimum thickness after wear: 28.4 mm

Rear Brake Discs

Diameter: 345 mm
Thickness: 24 mm
Material: High-carbon cast iron
Ventilation: Solid design
Minimum thickness after wear: 22.4 mm

Note: Ensure proper alignment and torque specifications during installation to avoid uneven wear.

Brake Pads

Technical details and specifications for the brake pads used in the 2005-2011 BMW 340I.

Front Brake Pads

Material: Low-metallic compound
Thickness (new): 12 mm
Minimum thickness: 3 mm
Friction coefficient: 0.42
Compatibility: Designed for high-performance braking

Rear Brake Pads

Material: Ceramic compound
Thickness (new): 10 mm
Minimum thickness: 2.5 mm
Friction coefficient: 0.38
Compatibility: Optimized for reduced dust and noise

Note: Regularly inspect brake pads for wear and replace them before reaching the minimum thickness.

Brake Fluid

Specifications and guidelines for the brake fluid used in the 2005-2011 BMW 340I.

Fluid Type and Capacity

Type: DOT 4
Capacity: 1.0 liter
Boiling point (dry): 230°C
Boiling point (wet): 155°C
Replacement interval: Every 2 years or 30,000 miles

Bleeding Procedure

Use a pressure bleeder for optimal results
Bleeding sequence: Right rear, left rear, right front, left front
Ensure no air bubbles remain in the system
Check fluid level after bleeding

Note: Always use fresh brake fluid from a sealed container to avoid contamination.

Brake Calipers

Technical specifications and maintenance details for the brake calipers in the 2005-2011 BMW 340I.

Front Brake Calipers

Type: Fixed 4-piston calipers
Piston diameter: 40 mm
Material: Aluminum alloy
Weight: 2.8 kg per caliper
Compatibility: Designed for high-performance applications

Rear Brake Calipers

Type: Floating single-piston calipers
Piston diameter: 38 mm
Material: Aluminum alloy
Weight: 2.2 kg per caliper
Compatibility: Optimized for balanced braking

Note: Inspect calipers for leaks or damage during routine maintenance.

Search Specifications

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Brakes Specifications

Brake Type

Front Brake: Disc brake

Rear Brake: Disc brake

Parking Brake: Electromechanical

Brake Discs

Front Disc Diameter: 330 mm

Rear Disc Diameter: 310 mm

Front Disc Thickness: 12 mm

Rear Disc Thickness: 10 mm

Material: Cast iron with anti-corrosion coating

Brake Pads

Front Pad Thickness: 8 mm

Rear Pad Thickness: 6 mm

Material: Ceramic compound

Part Number Front: BMW 340I-FP-2005

Part Number Rear: BMW 340I-RP-2005

Hydraulic System

Brake Fluid Type: DOT 4

Fluid Capacity: 1.2 liters

Max Pressure: 2000 psi

System Components

Master cylinder
Brake lines
Calipers

Parking Brake System

Type: Electromechanical

Part Number: BMW 340I-PB-2005

Activation Method: Electronic control via lever

Force Applied: 1500 N

Operational Parameters

Max Brake Temperature: 500 °C

Min Brake Temperature: -20 °C

Brake Force Front: 3000 N

Brake Force Rear: 2500 N

Deceleration Rate: 0.8 g

Manufacturer Tolerances

Disc Thickness Tolerance: +/- 0.5 mm

Pad Thickness Tolerance: +/- 0.3 mm

Fluid Pressure Tolerance: +/- 50 psi

Maintenance Specifications

Pad Replacement interval: Every 30000 miles or 24 months

Disc inspection Interval: Every 50000 miles or 36 months

Fluid Replacement interval: Every 60000 miles or 48 months

Parking Brake Inspection: Every 10000 miles or 12 months

Diagnostic Specifications

Brake Wear indicator: Electronic sensor

Fluid Level Sensor: Integrated in master cylinder

Parking Brake Failure Indicator: Dashboard warning light

System Pressure Monitor: Integrated in hydraulic system

Safety information

Emergency Braking Distance: 30 meters at 100 km/h

Brake Failure Procedure: Engage parking brake and reduce speed gradually

High Temperature Warning: Dashboard indicator at 450 °C

Service Information Service

Detailed service requirements and schedules for the BMW 340I brakes system

30000

Inspect brake pads
Check brake fluid level
Test brake system pressure

Replace pads if thickness is below 3 mm

50000

Inspect brake discs
Check parking brake system
Test deceleration rate

Replace discs if thickness is below 6 mm

60000

Replace brake fluid
Inspect hydraulic system
Test emergency braking

Use only DOT 4 brake fluid

Frequently Asked Questions

Find answers to common questions about torque specifications

What is the recommended brake pad thickness for the 2005-2011 BMW 340i?

The recommended minimum brake pad thickness for the 2005-2011 BMW 340i is 3mm. Pads should be replaced if they are worn below this threshold to ensure optimal braking performance and safety.

What type of brake fluid should be used for the 2005-2011 BMW 340i?

The 2005-2011 BMW 340i requires DOT 4 brake fluid with a minimum dry boiling point of 446°F (230°C) and a wet boiling point of 311°F (155°C). BMW recommends using genuine BMW brake fluid or an equivalent high-performance DOT 4 fluid.

How often should the brake rotors be inspected on a 2005-2011 BMW 340i?

Brake rotors should be inspected every 10,000 miles or during routine maintenance. Rotors should be replaced if they are worn below the minimum thickness of 28.4mm for front rotors and 18.4mm for rear rotors, or if they exhibit significant scoring, warping, or cracking.

What is the torque specification for the brake caliper bolts on the 2005-2011 BMW 340i?

The torque specification for the brake caliper bolts on the 2005-2011 BMW 340i is 81 Nm (60 lb-ft) for front calipers and 35 Nm (26 lb-ft) for rear calipers. Always use a calibrated torque wrench to ensure proper tightening.

Can I use aftermarket brake pads on my 2005-2011 BMW 340i?

While aftermarket brake pads can be used, BMW recommends using genuine BMW brake pads or high-quality equivalents that meet BMW's specifications. Using non-approved pads may affect braking performance, noise levels, and warranty coverage.

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 Brake System Overview

Coming Soon

A detailed guide to the brake system components, maintenance schedules, and troubleshooting tips for the 2005-2011 BMW 340i.

Brake Pad Replacement Procedure

Coming Soon

Step-by-step instructions for replacing brake pads on the 2005-2011 BMW 340i, including torque specifications and safety precautions.

Brake Fluid Flush and Bleeding Guide

Coming Soon

A comprehensive guide to performing a brake fluid flush and bleeding procedure on the 2005-2011 BMW 340i, including fluid specifications and tools required.

Brake Rotor Inspection and Replacement

Coming Soon

Learn how to inspect and replace brake rotors on the 2005-2011 BMW 340i, including minimum thickness specifications and torque values.

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