Brake pad wear sensor rear. Porsche 9YA Cayenne / Cayenne E-Hybrid 2018>>  ❭  9Y0907253C

Brake pad wear sensor, Rear.
The rear brake pad wear sensor detects the remaining thickness of the brake pad friction material and signals the vehicle’s service reminder system when the pads need replacement. It helps drivers schedule brake service before pads reach critically low levels.
Sold each, 2 required per car

Fits:
Porsche 9YA Cayenne / Cayenne Coupe - 2018 to 2023
* For cars with option codes: 
  1KX - Rear disc brakes - disc diameter 18 inches, Brake calliper painted Silver
  1KS - Rear disc brakes, 18", green
  1KU - Rear brake discs, Disc diameter 19", Black brake callipers,
  2EN - Rear brake discs, disc diameter 19-inches, Brake callipers, Red
  2EI - Rear brake discs, disc diameter 18 inches, brake calliper painted Black

This OE Match rear brake pad wear sensor is engineered to meet OE-equivalent standards for electrical resistance, connector fit, and mounting geometry. It functions as a simple yet critical safety sensor: when the brake pad friction material wears down to the sensor level, it completes (or breaks) an electrical circuit that triggers a warning in the dashboard display.

Brake pad wear sensors protect your vehicle by providing an early notice that pad material has reached a minimum safe thickness. Without a functioning sensor, pads may wear excessively before being noticed - possibly leading to rotor damage, reduced braking performance, and higher repair costs.

This OE Match sensor installs directly into the brake caliper/lining assembly at the rear axle, using the original connection harness and clips. It’s ideal for brake servicing, pad replacement intervals, or when upgrading to OE-equivalent replacement pads.

Brake pad wear sensors are a key safety component: they help prevent unexpected brake failure, excessive rotor wear, and costly repairs by giving you an early warning that pads need service. Replacing a worn or broken sensor with an OE Match brake pad wear sensor ensures the vehicle’s warning system functions correctly and helps maintain proper brake maintenance intervals.

When to replace:
•  Brake wear warning illuminates on the dashboard
•  After replacing rear brake pads
•  Sensor is damaged or corrosion present
•  During brake system overhaul or service
•  If the connector or wiring shows wear or damage

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