HomeBrake > SensorsRaybestos EWS161 Disc Brake Pad Wear Sensor - Rear
Part #: EWS161

Raybestos EWS161 Disc Brake Pad Wear Sensor - Rear

R-Line, Rear
167 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$36.21Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
R-Line, Rear
Fitment: BMW, 230i, 230i xDrive, 320i, 320i xDrive, 328d, 328d xDrive, 330e, 330i, 330i GT xDrive, 330i xDrive, 340i, 340i GT xDrive, 340i xDrive, 430i, 430i Gran Coupe, 430i xDrive, 430i xDrive Gran Coupe, 440i, 440i Gran Coupe, 440i xDrive, 440i xDrive Gran Coupe, M2, M240i, M240i xDrive, M3, M4, 228i, 228i xDrive, 328i, 328i GT xDrive, 328i xDrive, 335i GT xDrive, 428i, 428i Gran Coupe, 428i xDrive, 428i xDrive Gran Coupe, 435i, 435i Gran Coupe, 435i xDrive, 435i xDrive Gran Coupe, M235i, M235i xDrive, 335i, 335i xDrive, and ActiveHybrid 3
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Reliable Disc Brake Pad Wear Sensor for BMW Models

The Raybestos R-Line Disc Brake Pad Wear Sensor (Part Number EWS161) is designed to provide accurate and timely alerts for brake pad wear on select BMW vehicles. Engineered with a durable wiring harness and secure connectors, this sensor helps maintain optimal braking performance and safety.

  • Wiring harness length: 1045 mm (41.142 inches) for precise fitment
  • Includes two grommets for secure installation and protection
  • Pin-type terminals with male and female connector genders
  • One connector and two terminals included for reliable electrical connection
  • Wiring harness included for complete sensor assembly

About the Raybestos R-Line Product Line

The R-Line by Raybestos focuses on delivering dependable brake components that meet or exceed OEM specifications. This line emphasizes quality materials and precise engineering, ensuring that the EWS161 disc brake pad wear sensor integrates seamlessly with BMW braking systems. The R-Line sensors are designed to provide consistent performance and durability under normal driving conditions.

Detailed Product Description

The EWS161 disc brake pad wear sensor features a 1045 mm wiring harness, allowing for proper routing and connection within the brake assembly of various BMW models. The sensor includes two grommets to protect the wiring from abrasion and environmental exposure. Its pin-type terminals, with male and female connectors, ensure a secure and stable electrical connection to the vehicle’s brake system. This sensor is compatible with a wide range of BMW models including the 228i, 320i, 328i, 330i, 335i, 340i, 428i, 430i, 435i, 440i, M2, M3, M4, and others, covering both xDrive and non-xDrive variants.

Common Applications and Issues Addressed

  • Monitors brake pad wear to prevent brake system damage
  • Alerts driver to timely brake pad replacement needs
  • Helps avoid costly rotor damage due to worn pads
  • Ensures brake system safety and reliability
  • Prevents false brake wear warnings caused by faulty sensors

Installation Notes and Tips

  • Verify compatibility with your specific BMW model and year before installation
  • Handle wiring harness carefully to avoid damage to grommets and connectors
  • Ensure connectors are fully seated and terminals properly aligned
  • Inspect brake pads and rotors during sensor replacement for overall brake health
  • Follow vehicle manufacturer’s service manual for sensor installation procedures

Quality Assurance and Warranty

Raybestos R-Line sensors are manufactured to meet stringent quality standards, ensuring reliable performance and durability. The EWS161 part undergoes rigorous testing to confirm fitment and function on compatible BMW models. Warranty coverage details should be confirmed with the point of purchase or Raybestos directly.

BrandRaybestos
Part NumberEWS161
PositionR-Line, Rear
Connector GenderFemale
Connector Quantity1
Grommet Count2
Grommets IncludedYes
Terminal GenderMale
Terminal Quantity2
Terminal TypePin
Wiring Harness IncludedYes
Wiring Harness Length41.142
Wiring Harness Length1045.000

This part fits 167 vehicles. Search below:

YearMakeModelSubmodelBody TypeLitersCylindersPositionNotes
2021BMW230iRearRaybestos R-Line
2021BMW230i xDriveRearRaybestos R-Line
2021BMWM2RearWithout M Sport Brake [S2Nha]; Raybestos R-Line
2021BMWM240iRearRaybestos R-Line
2021BMWM240i xDriveRearRaybestos R-Line
2020BMW230iRearRaybestos R-Line
2020BMW230i xDriveRearRaybestos R-Line
2020BMW430iRearRaybestos R-Line
2020BMW430i Gran CoupeRearRaybestos R-Line
2020BMW430i xDriveRearRaybestos R-Line
2020BMW430i xDrive Gran CoupeRearRaybestos R-Line
2020BMW440iRearRaybestos R-Line
2020BMW440i Gran CoupeRearRaybestos R-Line
2020BMW440i xDriveRearRaybestos R-Line
2020BMW440i xDrive Gran CoupeRearRaybestos R-Line
2020BMWM2RearFor Vehicles Without M Carbon Ceramic Brake; Raybestos R-Line
2020BMWM240iRearRaybestos R-Line
2020BMWM240i xDriveRearRaybestos R-Line
2020BMWM4RearExcept Ceramic Composite Brakes; Raybestos R-Line
2019BMW230iRearRaybestos R-Line
2019BMW230i xDriveRearRaybestos R-Line
2019BMW330i GT xDriveRearRaybestos R-Line
2019BMW330i xDriveRearRaybestos R-Line
2019BMW340i GT xDriveRearRaybestos R-Line
2019BMW430iRearRaybestos R-Line
2019BMW430i Gran CoupeRearRaybestos R-Line
2019BMW430i xDriveRearRaybestos R-Line
2019BMW430i xDrive Gran CoupeRearRaybestos R-Line
2019BMW440iRearRaybestos R-Line
2019BMW440i Gran CoupeRearRaybestos R-Line
2019BMW440i xDriveRearRaybestos R-Line
2019BMW440i xDrive Gran CoupeRearRaybestos R-Line
2019BMWM2RearFor Vehicles With M Carbon Ceramic Brake; Raybestos R-Line
2019BMWM240iRearRaybestos R-Line
2019BMWM240i xDriveRearRaybestos R-Line
2019BMWM4RearExcept Ceramic Composite Brakes; Raybestos R-Line
2018BMW230iRearR-Line
2018BMW230i xDriveRearR-Line
2018BMW320iRearR-Line
2018BMW320i xDriveRearR-Line
2018BMW328dRearR-Line
2018BMW328d xDriveRearR-Line
2018BMW330eRearR-Line
2018BMW330iRearR-Line
2018BMW330i GT xDriveRearR-Line
2018BMW330i xDriveRearR-Line
2018BMW340iRearR-Line
2018BMW340i GT xDriveRearR-Line
2018BMW340i xDriveRearR-Line
2018BMW430iRearR-Line
2018BMW430i Gran CoupeRearR-Line
2018BMW430i xDriveRearR-Line
2018BMW430i xDrive Gran CoupeRearR-Line
2018BMW440iRearR-Line
2018BMW440i Gran CoupeRearR-Line
2018BMW440i xDriveRearR-Line
2018BMW440i xDrive Gran CoupeRearR-Line
2018BMWM2RearR-Line
2018BMWM240iRearR-Line
2018BMWM240i xDriveRearR-Line
2018BMWM3RearNot compatible with vehicles equippd with Ceramic Composite Brakes.; R-Line
2018BMWM4RearNot compatible with vehicles equippd with Ceramic Composite Brakes.; R-Line
2017BMW230iRearR-Line
2017BMW230i xDriveRearR-Line
2017BMW320iRearR-Line
2017BMW320i xDriveRearR-Line
2017BMW328dRearR-Line
2017BMW328d xDriveRearRaybestos R-Line
2017BMW330eRearR-Line
2017BMW330iRearR-Line
2017BMW330i GT xDriveRearR-Line
2017BMW330i xDriveRearR-Line
2017BMW340iRearR-Line
2017BMW340i GT xDriveRearR-Line
2017BMW340i xDriveRearR-Line
2017BMW430iRearR-Line
2017BMW430i Gran CoupeRearR-Line
2017BMW430i xDriveRearR-Line
2017BMW430i xDrive Gran CoupeRearR-Line
2017BMW440iRearR-Line
2017BMW440i Gran CoupeRearR-Line
2017BMW440i xDriveRearR-Line
2017BMW440i xDrive Gran CoupeRearR-Line
2017BMWM2RearR-Line
2017BMWM240iRearR-Line
2017BMWM240i xDriveRearR-Line
2017BMWM3RearNot compatible with vehicles equippd with Ceramic Composite Brakes.; R-Line
2017BMWM4RearNot compatible with vehicles equippd with Ceramic Composite Brakes.; R-Line
2016BMW228iRearR-Line
2016BMW228i xDriveRearR-Line
2016BMW320iRearR-Line
2016BMW320i xDriveRearR-Line
2016BMW328dRearR-Line
2016BMW328d xDriveRearRaybestos R-Line
2016BMW328iRearR-Line
2016BMW328i GT xDriveRearR-Line
2016BMW328i xDriveRearR-Line
2016BMW330eRearR-Line
2016BMW335i GT xDriveRearR-Line
2016BMW340iRearR-Line
2016BMW340i xDriveRearR-Line
2016BMW428iRearR-Line
2016BMW428i Gran CoupeRearR-Line
2016BMW428i xDriveRearR-Line
2016BMW428i xDrive Gran CoupeRearR-Line
2016BMW435iRearR-Line
2016BMW435i Gran CoupeRearR-Line
2016BMW435i xDriveRearR-Line
2016BMW435i xDrive Gran CoupeRearR-Line
2016BMWM2RearR-Line
2016BMWM235iRearR-Line
2016BMWM235i xDriveRearR-Line
2016BMWM3RearNot compatible with vehicles equippd with Ceramic Composite Brakes.; R-Line
2016BMWM4RearNot compatible with vehicles equippd with Ceramic Composite Brakes.; R-Line
2015BMW228iRearR-Line
2015BMW228i xDriveRearR-Line
2015BMW320iRearR-Line
2015BMW320i xDriveRearR-Line
2015BMW328dRearR-Line
2015BMW328d xDriveRearRaybestos R-Line
2015BMW328iRearR-Line
2015BMW328i GT xDriveRearR-Line
2015BMW328i xDriveRearR-Line
2015BMW335iRearR-Line
2015BMW335i GT xDriveRearR-Line
2015BMW335i xDriveRearR-Line
2015BMW428iRearR-Line
2015BMW428i Gran CoupeRearR-Line
2015BMW428i xDriveRearR-Line
2015BMW428i xDrive Gran CoupeRearR-Line
2015BMW435iRearR-Line
2015BMW435i Gran CoupeRearR-Line
2015BMW435i xDriveRearR-Line
2015BMW435i xDrive Gran CoupeRearR-Line
2015BMWActiveHybrid 3RearR-Line
2015BMWM235iRearR-Line
2015BMWM235i xDriveRearR-Line
2015BMWM3RearNot compatible with vehicles equippd with Ceramic Composite Brakes.; R-Line
2015BMWM4RearNot compatible with vehicles equippd with Ceramic Composite Brakes.; R-Line
2014BMW228iRearR-Line
2014BMW320iRearR-Line
2014BMW320i xDriveRearR-Line
2014BMW328dRearR-Line
2014BMW328d xDriveRearRaybestos R-Line
2014BMW328iRearR-Line
2014BMW328i GT xDriveRearR-Line
2014BMW328i xDriveRearR-Line
2014BMW335iRearR-Line
2014BMW335i GT xDriveRearR-Line
2014BMW335i xDriveRearR-Line
2014BMW428iRearR-Line
2014BMW428i xDriveRearR-Line
2014BMW435iRearR-Line
2014BMW435i xDriveRearR-Line
2014BMWActiveHybrid 3RearR-Line
2014BMWM235iRearR-Line
2013BMW320iRearR-Line
2013BMW320i xDriveRearR-Line
2013BMW328iBase2.0LL4RearR-Line
2013BMW328i xDriveRearR-Line
2013BMW335iSedanRearR-Line
2013BMW335i xDriveRearR-Line
2013BMWActiveHybrid 3RearR-Line
2012BMW320iRearR-Line
2012BMW328i2.0LL4RearR-Line
2012BMW335iRearR-Line
2012BMW335i xDriveRearRaybestos 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:

116.3408034356792292

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