Mercedes-Benz Mercedes R-Class 2005-2017 Brakes Specifications
Mercedes-Benz Mercedes R-Class 2005-2017

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.

Updated

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 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.

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.

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

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: 50,000
Years: 4
Coverage: Brake pads and rotors
Labor Warranty
Miles: 50,000
Years: 4
Coverage: Brake system repairs
Extended Warranty
Miles: 100,000
Years: 7
Coverage: 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 cracks
Caliper Testing: Pressure testing up to 3000 psi
Final 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 systems
Defect Rate: Less than 0.1%
Lead Time: 4 weeks

Service Information for brakes Service

Maintenance and service requirements specific to this component

30,000
24
  • 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%

60,000
48
  • 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

100,000
84
  • 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?

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?

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?

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?

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?

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 Soon

Comprehensive guide covering maintenance, repair, and troubleshooting for 2005-2017 R-Class models.

Brake System Technical Bulletin

Coming Soon

Technical service bulletin addressing common brake issues and updates for R-Class vehicles.

R-Class Brake Parts Catalog

Coming Soon

Detailed catalog of OEM and aftermarket brake components for 2005-2017 R-Class models.

About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

ASE Master Certified Technician with over a decade of hands-on experience in automotive repair and diagnostics.

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