HomeBrake > SensorsStandard Ignition PWS142 Disc Brake Pad Wear Sensor - Rear
Part #: PWS142

Standard Ignition PWS142 Disc Brake Pad Wear Sensor - Rear

Rear
6 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$31.90Free 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
Fitment: BMW, M3
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

BMW M3 Rear Brake Pad Wear Sensor

Standard Ignition PWS142 is a rear disc brake pad wear sensor for select 2001-2006 BMW M3 applications. It monitors brake pad condition at the brake caliper and helps trigger the wear warning system when pad material reaches the service limit.

Key Features

  • Disc brake pad wear sensor for rear brake service
  • Mounts at the brake caliper for direct wear monitoring
  • Female round connector with 1 connector and 2 male pin terminals
  • Harness length: 54.25 in. (1377.95 mm)
  • Standard Ignition PWS142 for BMW M3 rear brake maintenance

Detailed Description

Standard Ignition PWS142 is built for rear brake pad wear monitoring on 2001-2006 BMW M3 models. This sensor uses a round female connector and a pin-style terminal layout to match the vehicle’s brake wear indicator circuit, while the 54.25-inch harness provides the routing length needed from the caliper area to the connection point. If you are replacing a worn or damaged BMW M3 rear brake pad wear sensor, PWS142 is the direct service part to restore the warning function.

This part cross-references URO 34352229780 for the same application.

What It Helps Solve

  • Brake pad wear warning light staying on after pad service
  • Broken or abraded rear brake wear sensor wiring
  • Intermittent pad wear indicator signals
  • Loss of brake pad wear monitoring at the rear caliper
  • Replacement needs during BMW M3 rear brake maintenance

Installation Notes and Tips

Install at the rear brake caliper and route the harness to match the original path. Inspect the connector, terminals, and surrounding brake hardware before installation, and verify the sensor is seated securely in the brake pad wear circuit. For best results, confirm the vehicle application before ordering Standard Ignition PWS142.

Quality Assurance

Standard Ignition is a recognized aftermarket brand for electrical and sensor components. PWS142 is specified for 2001-2006 BMW M3 rear applications and built to match the listed connector and terminal configuration.

BrandStandard Ignition
Part NumberPWS142
Connector GenderFemale
Connector Quantity1
Connector ShapeRound
ContentsSensor
FunctionsBrake pad wear sensor
Harness Length - inches54.25
Harness Length - mm1377.95
Mounting LocationBrake caliper
Terminal GenderMale
Terminal Quantity2
Terminal TypePin

This part fits 6 vehicles. Search below:

YearMakeModelPositionNotes
2006BMWM3Rear
2005BMWM3Rear
2004BMWM3Rear
2003BMWM3Rear
2002BMWM3Rear
2001BMWM3Rear

* 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:

34352229780

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