HomeBrake > SensorsRaybestos EWS171 Disc Brake Pad Wear Sensor - Rear
Part #: EWS171

Raybestos EWS171 Disc Brake Pad Wear Sensor - Rear

R-Line, Rear
10 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
R-Line, Rear
Fitment: Audi and Porsche, RS7, Macan, A6, and A7 Quattro
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Reliable Disc Brake Pad Wear Sensor for Audi and Porsche Models

The Raybestos R-Line Disc Brake Pad Wear Sensor (Part Number EWS171) is designed to provide accurate and timely alerts for brake pad wear on select Audi and Porsche vehicles. This sensor helps maintain optimal braking performance and safety by monitoring the condition of your disc brake pads.

  • Compatible with Audi A6, A6 Quattro, A7 Quattro and Porsche Macan, RS7 models
  • Part Number EWS171 ensures precise fit and function
  • Disc brake pad wear sensor designed for reliable brake system monitoring
  • Manufactured by Raybestos under the R-Line product line

About the Raybestos R-Line Product Line

The R-Line by Raybestos represents a dedicated product line focused on delivering dependable brake components tailored for specific vehicle applications. The R-Line disc brake pad wear sensors, including the EWS171, are engineered to meet the exact specifications required by Audi and Porsche models, ensuring compatibility and consistent performance within the braking system.

Product Details and Functionality

The Raybestos R-Line EWS171 disc brake pad wear sensor is an essential component for monitoring brake pad thickness on compatible Audi and Porsche vehicles. By detecting when brake pads reach a critical wear level, this sensor triggers a warning light on the dashboard, allowing drivers to schedule timely maintenance. This helps prevent brake system damage and maintains vehicle safety standards.

Common Issues Addressed by the EWS171 Sensor

  • Prevents unexpected brake pad failure by providing early wear alerts
  • Helps avoid costly rotor damage due to worn brake pads
  • Ensures compliance with vehicle safety monitoring systems
  • Reduces risk of brake performance degradation
  • Maintains accurate brake system diagnostics for Audi and Porsche models

Installation Notes and Tips

  • Ensure vehicle compatibility with Audi A6, A6 Quattro, A7 Quattro, Porsche Macan, or RS7 before installation
  • Follow manufacturer guidelines for sensor placement and connection
  • Inspect brake pads and related components during sensor replacement
  • Use proper tools to avoid damage to sensor wiring and connectors

Quality Assurance and Warranty

Raybestos manufactures the EWS171 sensor to meet stringent quality standards, ensuring reliable operation within the braking system. While specific warranty details are not provided here, Raybestos products typically come with manufacturer-backed warranties covering defects in materials and workmanship. Refer to official Raybestos documentation for exact warranty terms.

This part fits 10 vehicles. Search below:

YearMakeModelSubmodelPositionNotes
2018AudiRS7PerformanceRearR-Line
2018PorscheMacanRearDisc brake pad wear sensor compatible with ceramic composite brake pad set.; R-Line
2017AudiRS7PerformanceRearR-Line
2017PorscheMacanRearDisc brake pad wear sensor compatible with ceramic composite brake pad set.; R-Line
2016AudiRS7PerformanceRearR-Line
2016PorscheMacanRearDisc brake pad wear sensor compatible with ceramic composite brake pad set.; R-Line
2015PorscheMacanRearDisc brake pad wear sensor compatible with ceramic composite brake pad set.; R-Line
2013AudiA6Rear315mm Length; R-Line
2013AudiA6 QuattroRearRotor Diameter 370mm; Raybestos R-Line
2013AudiA7 QuattroRear315mm Length; R-Line

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

4G0615121A

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.