Mercedes-Benz Mercedes R-Class 2005-2017 Brakes Specifications
Explore the comprehensive brake specifications for the 2005-2017 Mercedes-Benz R-Class, including disc dimensions, pad types, and maintenance tips. Perfect for repairs, replacements, and performance upgrades.
Overview Specifications
This document provides detailed specifications and technical information about the braking system of the 2005-2017 Mercedes R-Class. It is designed to help users understand the components, functionality, and maintenance of the brakes. Use this guide to locate specific details about brake types, dimensions, materials, and performance. The document is organized into sections for easy navigation and includes a quick reference table for key specifications.
How to Use
Use the search functionality to quickly locate specific terms or components within the document. Enter keywords such as 'brake pads' or 'rotor size' to find relevant information.
Navigate through the document using the section titles and subsections. Each major section is dedicated to a specific aspect of the braking system, allowing you to easily find detailed information.
Key Specifications
Front Rotor Diameter
320-350 mm
Rear Rotor Diameter
300-320 mm
Brake Pad Thickness (New)
10-12 mm
Stopping Distance (60-0 mph)
120 feet
Brake Fluid Replacement Interval
2 years
Available Specifications
Brake System Components
This section covers the primary components of the Mercedes R-Class braking system, including brake pads, rotors, calipers, and brake lines. Learn about the materials, design, and functionality of each component.
Brake System Components
This section covers the primary components of the Mercedes R-Class braking system, including brake pads, rotors, calipers, and brake lines. Learn about the materials, design, and functionality of each component.
Brake Pads
- Material: Ceramic or semi-metallic
- Thickness: 10-12 mm (new)
- Wear indicator included
- Replacement interval: Approximately 50,000 miles
Brake Rotors
- Material: Cast iron with vented design
- Diameter: 320-350 mm (front), 300-320 mm (rear)
- Thickness: 28-32 mm (front), 12-14 mm (rear)
- Replacement interval: Approximately 70,000 miles
Brake Performance
This section focuses on the performance characteristics of the braking system, including stopping distance, pedal feel, and ABS functionality. Understand how the system ensures safety and reliability.
Brake Performance
This section focuses on the performance characteristics of the braking system, including stopping distance, pedal feel, and ABS functionality. Understand how the system ensures safety and reliability.
Stopping Distance
- 60-0 mph: Approximately 120 feet
- 80-0 mph: Approximately 190 feet
- Influenced by tire condition and road surface
- ABS reduces skidding during hard braking
Pedal Feel
- Progressive and responsive
- Minimal pedal travel
- Assisted by brake booster
- Consistent performance in all conditions
Maintenance and Care
This section provides guidelines for maintaining the braking system, including inspection intervals, common issues, and replacement tips. Keep your brakes in optimal condition with these recommendations.
Maintenance and Care
This section provides guidelines for maintaining the braking system, including inspection intervals, common issues, and replacement tips. Keep your brakes in optimal condition with these recommendations.
Inspection Intervals
- Check brake pads every 10,000 miles
- Inspect rotors for wear and warping
- Monitor brake fluid level monthly
- Replace brake fluid every 2 years
Common Issues
- Squeaking or grinding noises
- Vibration during braking
- Reduced braking efficiency
- ABS warning light activation
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Brakes Specifications
Overview
- Type
- Hydraulic disc brakes
- Configuration
- Front and rear disc brakes
- Platform
- Mercedes-Benz R-Class W251
- Material
- Cast iron rotors with ceramic composite pads
- Location
- Wheel hubs
Dimensions
- Front Rotor Diameter
- 330 mm (12.99 in)
- Rear Rotor Diameter
- 300 mm (11.81 in)
- Front Rotor Thickness
- 28 mm (1.10 in)
- Rear Rotor Thickness
- 22 mm (0.87 in)
- Front Pad Area
- 60 cm² (9.30 in²)
- Rear Pad Area
- 45 cm² (6.98 in²)
- Brake Line Diameter
- 6 mm (0.24 in)
Materials
- Rotors
- High-carbon cast iron with anti-corrosion coating
- Brake Pads
- Ceramic composite with heat-resistant backing
- Calipers
- Aluminum alloy with powder coating
- Brake Lines
- Braided stainless steel with rubber coating
Features
- Performance
-
- ABS (Anti-lock Braking System)
- ESP (Electronic Stability Program)
- Brake Assist
- Hill Start Assist
- Cooling
-
- Vented front rotors
- Integrated cooling fins
- Dust shields with ventilation
- Durability
-
- Corrosion-resistant rotors
- High-temperature brake pads
- Wear sensors
- Safety
-
- Automatic brake drying
- Emergency brake light flashing
- Adaptive brake force distribution
- Comfort
-
- Low-noise brake pads
- Smooth pedal feel
- Progressive braking response
Safety Features
- Active Safety
-
- ABS with EBD (Electronic Brakeforce Distribution)
- Pre-safe braking system
- Passive Safety
-
- Reinforced brake lines
- Dual-circuit brake system
- Monitoring
-
- Brake pad wear sensors
- Brake fluid level sensor
Comfort Features
- Noise Reduction
-
- Anti-squeal shims
- Vibration-damping pads
- Pedal Feel
-
- Hydraulic brake booster
- Adjustable pedal travel
- Maintenance
-
- Self-adjusting calipers
- Easy-access pad replacement
Accessories
- Upgrades
-
- Performance brake pads
- Slotted rotors
- Stainless steel brake lines
- Tools
-
- Brake caliper tool kit
- Brake bleeder kit
- Torque wrench
- Maintenance
-
- Brake cleaner spray
- Brake grease
- Wear sensor replacement
Maintenance
- Service interval
- Every 30,000 miles or 24 months
- Service Items
-
- Inspect brake pads and rotors
- Check brake fluid level
- Test brake system pressure
- Lubricate caliper pins
- Inspect brake lines for leaks
- Maintenance Notes
- Replace brake fluid every 2 years or 30,000 miles
Warranty
- Parts Warranty
- Miles: 50,000Years: 4Coverage: Brake pads and rotors
- Labor Warranty
- Miles: 50,000Years: 4Coverage: Brake system repairs
- Extended Warranty
- Miles: 100,000Years: 7Coverage: Brake calipers and lines
- Terms
- Warranty void if non-OEM parts are used
Production Details
- Manufacturer
- Mercedes-Benz AG
- Manufacturing Process
-
- Precision casting of rotors
- CNC machining of calipers
- Automated assembly
- Quality Control
- Rotor inspection: Ultrasonic testing for cracksCaliper Testing: Pressure testing up to 3000 psiFinal Inspection: Full system performance test
- Sustainability Practices
-
- Recycled materials in brake pads
- Eco-friendly brake fluid
- Low-emission manufacturing
- Production Metrics
- Annual Output: 500,000 brake systemsDefect Rate: Less than 0.1%Lead Time: 4 weeks
Service Information for brakes Service
Maintenance and service requirements specific to this component
- Inspect brake pads and rotors
- Check brake fluid level and condition
- Test brake system pressure
- Lubricate caliper pins
- Inspect brake lines for leaks
Replace brake fluid if moisture content exceeds 3%
- Replace brake pads
- Resurface or replace rotors
- Flush and replace brake fluid
- Inspect calipers for wear
- Test ABS and ESP functionality
Use only Mercedes-Benz approved brake fluid
- Replace brake rotors
- Inspect and replace calipers if necessary
- Replace brake lines
- Test entire brake system
- Perform ABS diagnostic check
Major service requires specialized diagnostic tools
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 Are brake components compatible across all 2005-2017 Mercedes R-Class models?
Are brake components compatible across all 2005-2017 Mercedes R-Class models?
Brake components for the 2005-2017 Mercedes R-Class are generally compatible across the range, but variations exist based on engine type, trim level, and optional brake systems. For example, R350 and R500 models may require different rotor sizes or pad materials. Always verify part numbers using the vehicle’s VIN or consult a dealership to ensure compatibility with your specific model and year.
Q2 What is the recommended maintenance schedule for R-Class brakes?
What is the recommended maintenance schedule for R-Class brakes?
Mercedes recommends inspecting brake pads, rotors, and fluid every 10,000 miles or annually. Pads typically last 30,000-50,000 miles, depending on driving conditions. Brake fluid should be replaced every 20,000 miles or two years to maintain optimal performance. Regularly check for signs of wear, such as squeaking, reduced braking efficiency, or uneven pad wear, and address issues promptly.
Q3 How do I replace the brake pads on a 2005-2017 Mercedes R-Class?
How do I replace the brake pads on a 2005-2017 Mercedes R-Class?
To replace brake pads, first, lift the vehicle and remove the wheels. Use a brake caliper tool to compress the piston and remove the caliper bolts. Slide out the old pads, clean the caliper bracket, and install new pads. Reattach the caliper, ensuring bolts are torqued to factory specifications. Finally, pump the brake pedal to reset the piston and test the brakes before driving.
Q4 What should I do if my R-Class brakes are squeaking or vibrating?
What should I do if my R-Class brakes are squeaking or vibrating?
Squeaking or vibrating brakes often indicate worn pads, uneven rotors, or debris buildup. Inspect the pads for wear and replace if necessary. Check rotors for warping or grooves; resurface or replace as needed. Clean the brake components thoroughly and apply brake grease to contact points. If issues persist, inspect the calipers and brake fluid for potential problems.
Q5 How can I optimize the braking performance of my R-Class?
How can I optimize the braking performance of my R-Class?
To optimize braking performance, use high-quality brake pads and rotors designed for your R-Class model. Regularly inspect and maintain the braking system, including fluid levels and caliper function. Avoid aggressive driving, which can overheat brakes. Consider upgrading to performance brake components for enhanced stopping power, especially if towing or driving in mountainous areas.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
Mercedes R-Class Service Manual
Coming SoonComprehensive guide covering maintenance, repair, and troubleshooting for 2005-2017 R-Class models.
Brake System Technical Bulletin
Coming SoonTechnical service bulletin addressing common brake issues and updates for R-Class vehicles.
R-Class Brake Parts Catalog
Coming SoonDetailed catalog of OEM and aftermarket brake components for 2005-2017 R-Class models.
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Technical Information
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