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Porsche // Boxster 986/987/981 (1997-2016) // Boxster 981 2.7L 2012-16
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- Porsche 992.1 Carrera 2 3.0L 2019-24
- Porsche 992.1 Carrera 4 3.0L 2019-24
- Porsche 992.1 Carrera 2 Cabriolet 3.0L 2019-24
- Porsche 992.1 Carrera 4 Cabriolet 3.0L 2019-24
- Porsche 992.1 Targa 4 3.0L 2020-24
Ensure proper brake pad wear monitoring on your Porsche 911 (992 generation) with this genuine OEM wear sensor. Designed for the non-ceramic (steel-brake) front axle of the 992 with standard “comfort equipment” brake setup, this sensor completes the brake pad wear-warning system and ensures you receive timely alerts when your front brake pads need replacement.
Sold each, Fits left and right.
Fits:
- Porsche 992.1 Carrera 2 3.0L 2019-24
- Porsche 992.1 Carrera 4 3.0L 2019-24
- Porsche 992.1 Carrera 2 Cabriolet 3.0L 2019-24
- Porsche 992.1 Carrera 4 Cabriolet 3.0L 2019-24
- Porsche 992.1 Targa 4 3.0L 2020-24
A8C - Comfort Equipment
Diagram Ref No 7
What This Product Does:
- The brake pad wear sensor is an electronic (or electrical) component mounted in the brake pad or on the pad carrier that monitors how much friction material remains on the brake pads. When the pad material wears down to a predefined depth, the sensor triggers a warning light (or message) on the instrument cluster, alerting the driver that the brake pads need replacement.
- It helps prevent brake pad material becoming too thin, which could lead to metal-to-rotor contact, rotor damage, decreased braking performance, excessive noise, or even failure of the brake system under heavy load.
- On the 911 992 (and similar models), because performance and safety are critical, ensuring the wear sensor is functioning correctly helps maintain expected braking performance, safe maintenance intervals, and protects against unexpected pad failure.
Signs & When To Replace:
- The brake pad warning light or a message displays on your dash indicating “Brake pad wear” or similar — it could signify that the sensor is triggered or faulting.
- You have replaced the brake pads and did not install a new sensor, or the old sensor was damaged or not re-installed — it’s best practice to replace the sensor whenever the pads are changed.
- The wiring to the sensor is damaged, frayed, broken, or the connector is corroded or loose. A broken sensor cable will not warn you of low pad material.
- You are replacing the brake pads/discs or servicing the front brakes — installing a fresh sensor ensures correct maintenance.
Why Replacement Matters:
- Brake safety and performance: The sensor is a key part of the wear-monitoring system—without it you may continue driving after the pads are too thin, risking rotor damage or reduced stopping power.
- Prevents unintended damage: If pads are worn too far without notice, metal backing might contact the rotor, causing rotor scoring, vibration or costly damage. The wear sensor helps prevent that scenario.
- Ease of inspection: With the sensor functioning, you receive timely alerts rather than relying on guesswork or manual inspection; this is especially useful in performance cars that may be driven hard.
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Front Brake Pad Wear Sensor - These should be replaced when replacing brake pads.
Sold each - 2 required per car
Maintain the safety and reliability of your Porsche braking
system with these Front Brake Pad Wear Sensors.
Fits:
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
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These OE direct-fit brake wear sensor integrates seamlessly with your Porsche's electronic braking system, ensuring accurate wear monitoring and helping prevent unnecessary brake disc damage caused by excessively worn brake pads.
What Does the Brake Pad Wear Sensor Do?
The brake pad wear sensor is an important safety component that monitors the thickness of the front brake pads. As the friction material wears down, the sensor eventually contacts the brake disc, completing an electrical circuit that activates the brake wear warning light on the dashboard.
Its primary functions include:
- Monitoring front brake pad wear.
- Activating the dashboard brake warning light.
- Preventing excessive brake pad wear.
- Helping protect the brake discs from damage.
- Supporting scheduled brake maintenance.
- Improving overall braking safety.
The sensor provides an early warning, allowing brake pads to be replaced before braking performance is compromised.
Why Do Brake Pad Wear Sensors Fail?
Brake wear sensors are consumable components and are
designed to be replaced during brake servicing. Common reasons for failure
include:
- Normal activation once the brake pads reach their wear limit.
- Heat generated by the braking system.
- Damage during brake pad removal.
- Road debris and moisture.
- Corrosion of the electrical contacts.
- Wiring damage caused by age or movement.
- General wear after years of service.
Once activated, the sensor cannot normally be reused and should always be replaced with new brake pads.
When Should the Brake Pad Wear Sensor Be Replaced?
Replacement is recommended whenever:
- The brake wear warning light is illuminated.
- New front brake pads are installed.
- The sensor has contacted the brake disc.
- The wiring has become damaged.
- Corrosion affects the electrical connector.
- During routine brake servicing.
- As part of a complete front brake overhaul.
Replacing the sensor at the same time as the brake pads ensures accurate future wear monitoring and avoids unnecessary labour costs.
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Fits: Left or Right, Price shown is for each wire sensor.
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For cars with Ceramic brake PCCB (I450)
Porsche 981 Boxster / Boxster Spyder 2012-16 (FRONT)
Porsche 982 (718) Boxster 2017>> (FRONT)
Porsche 981C Cayman / Cayman GT4 2014-16 (FRONT)
Porsche 982C (718) Cayman 2017>> (FRONT)
Price shown is for each wire sensor.
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OE Match Front Brake Pad Wear Sensor - uses
a single pad sensor design, whereas the original Porsche sensor uses a double
pad sensor
Sold each - 2 required per car
Keep your Porsche braking system performing safely with this
OE Match Front Brake Pad Wear Sensor
Fits:
- Porsche Boxster 981 2.7L 2012-16
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Brake pad wear sensors provide an early warning when your front brake pads have reached their service limit, allowing them to be replaced before braking performance is affected or damage occurs to the brake discs.
This OE Match replacement uses a single pad sensor design, whereas the original Porsche sensor uses a double pad sensor. Despite this difference, the sensor functions exactly as intended by connecting it to one brake pad only, providing the same reliable brake wear monitoring and dashboard warning operation as the original system.
Manufactured to OE-quality standards, this direct-fit replacement offers dependable performance, excellent durability and outstanding value.
What Does a Brake Pad Wear Sensor Do?
The brake pad wear sensor is an electronic monitoring device fitted to the brake pads. As the friction material wears down, the sensor eventually contacts the brake disc, completing an electrical circuit that illuminates the brake wear warning light on the dashboard.
Its primary functions include:
- Monitoring front brake pad wear.
- Activating the dashboard brake warning light.
- Preventing excessive brake pad wear.
- Helping protect expensive brake discs.
- Supporting scheduled vehicle maintenance.
- Improving braking safety.
The warning system gives the driver sufficient notice to replace the brake pads before braking performance is compromised.
Single Sensor Design
Unlike the original Porsche sensor, which monitors two brake pads, this OE Match version uses one single pad sensor.
This is completely normal for this replacement design and does not affect operation. Simply connect the sensor to one brake pad, where it will function exactly as intended by providing accurate brake wear indication through the factory warning system.
Why Do Brake Pad Wear Sensors Fail?
Brake wear sensors are designed as consumable service components and are normally replaced during every brake pad change.
Common reasons for replacement include:
- Activation after the brake pads reach their wear limit.
- Damage during brake pad removal.
- Heat generated by the braking system.
- Moisture and road contamination.
- Corrosion of the electrical contacts.
- Wiring damage caused by movement or age.
- General deterioration over time.
Once activated, a brake wear sensor should not normally be reused.
When Should the Brake Pad Wear Sensor Be Replaced?
Replacement is recommended whenever:
- The brake wear warning light is illuminated.
- New front brake pads are installed.
- The sensor has contacted the brake disc.
- The wiring becomes damaged.
- Corrosion affects the electrical connector.
- During routine brake servicing.
- Completing a front brake overhaul.
Brake pad wear sensors should normally be replaced whenever replacing your brake pads to ensure accurate brake wear monitoring and reliable long-term operation.
Related reference numbers
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99160916500
The product you are viewing cross references to these numbers