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- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
Brake Pad Wear Sensor - Front
Sold each - 2 required per car
Maintain the safety and reliability of your Porsche braking
system with this OE Match Brake Pad Wear Sensor, designed for
Porsche 928 models produced between 1978 and 1985. This sensor forms part of
the factory brake wear monitoring system, providing an early warning when brake
pads approach their service limit.
Fits:
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
The brake pad wear sensor is installed within the brake pad and is designed to trigger a warning light when the friction material wears to a predetermined level. This allows drivers to replace brake pads before braking performance is compromised or damage occurs to the brake discs.
For a high-performance grand touring car such as the Porsche 928, maintaining the braking system in optimum condition is essential for both safety and driving enjoyment.
What Does a Brake Pad Wear Sensor Do?
The brake pad wear sensor continuously monitors the thickness of the brake pad friction material.
As the brake pad wears down, the sensor eventually contacts the brake disc and completes an electrical circuit that activates the brake wear warning light on the dashboard.
A correctly functioning sensor helps:
- Monitor brake pad condition
- Provide early wear warnings
- Prevent excessive brake pad wear
- Protect brake discs from damage
- Improve maintenance planning
- Enhance braking safety
- Support reliable vehicle operation
The sensor acts as an important safeguard, helping owners identify when brake service is required.
Why Do Brake Pad Wear Sensors Fail?
Brake wear sensors operate in a harsh environment exposed to heat, moisture, road debris and vibration.
Common causes of failure include:
- Normal brake pad wear
- Sensor activation during pad wear
- Damaged sensor wiring
- Corrosion in electrical connections
- Heat-related deterioration
- Physical damage during brake servicing
- Water and dirt contamination
- Age-related material fatigue
In many cases, the sensor is designed as a service item and should be replaced whenever it has been triggered or damaged.
When Should a Brake Pad Wear Sensor Be Replaced?
Brake wear sensors should typically be replaced during brake pad replacement or whenever a fault is identified.
Common symptoms include:
- Brake wear warning light illuminated
- Intermittent brake warning messages
- Damaged or broken sensor wiring
- False brake wear warnings
- Sensor damage during brake servicing
- Corrosion around the sensor connection
- Brake pads being replaced due to wear
Replacing the sensor when fitting new brake pads helps ensure the monitoring system continues to operate correctly.
Why Replacement Matters
A functioning brake pad wear sensor provides an important warning system that helps protect both the braking system and vehicle occupants.
Benefits include:
- Accurate brake wear monitoring
- Improved vehicle safety
- Reduced risk of brake damage
- Early maintenance alerts
- Protection of expensive brake discs
- Reliable dashboard warning operation
- Improved servicing accuracy
- Long-term braking system reliability
For Porsche 928 owners, maintaining the brake wear monitoring system helps preserve the safety and performance expected from a Porsche grand tourer.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92861231501
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
Front & Rear Brake Pad Wear Sensor
Sold each
Maintain the safety and performance of your Porsche braking
system with this OE Match Brake Pad Wear Sensor. Suitable for front
and rear brake applications on selected Porsche 986 Boxster, Porsche 996,
Porsche 996 turbo and Porsche 997 models, this sensor forms a vital part of the
factory brake wear monitoring system.
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
The brake pad wear sensor continuously monitors brake pad thickness and alerts the driver when replacement is required. By providing an early warning before the friction material becomes excessively worn, the sensor helps protect brake discs, maintain braking performance and prevent costly repairs.
For high-performance Porsche sports cars, maintaining the brake wear monitoring system is essential to ensure optimum braking efficiency and vehicle safety.
What Does a Brake Pad Wear Sensor Do?
The brake pad wear sensor is fitted directly into the brake pad and monitors the remaining friction material.
As the brake pad wears down, the sensor eventually contacts the brake disc and completes an electrical circuit that activates the brake wear warning light on the dashboard.
A properly functioning sensor helps:
- Monitor brake pad condition
- Provide early brake wear warnings
- Prevent excessive brake pad wear
- Protect brake discs from damage
- Improve maintenance planning
- Support safe braking performance
- Maintain factory brake monitoring functionality
The sensor serves as an important preventative maintenance tool, helping owners replace brake pads before braking performance is affected.
Why Do Brake Pad Wear Sensors Fail?
Brake wear sensors operate in a demanding environment exposed to heat, vibration, moisture and road contamination.
Common causes of failure include:
- Normal brake pad wear
- Sensor activation after pad wear reaches its limit
- Damaged wiring
- Corrosion in electrical connections
- Heat-related deterioration
- Physical damage during brake servicing
- Water ingress
- Age-related material degradation
Because the sensor is designed to operate alongside the brake pads, it is often recommended to replace the sensor whenever new brake pads are installed.
When Should a Brake Pad Wear Sensor Be Replaced?
Brake wear sensors should be replaced whenever they have been activated, damaged or when brake pads are renewed.
Common signs include:
- Brake wear warning light illuminated
- Intermittent brake warning messages
- Broken or damaged sensor wiring
- False brake wear warnings
- Corroded sensor connectors
- Sensor damage during brake servicing
- Brake pad replacement due to wear
Replacing the sensor during brake maintenance helps ensure the brake monitoring system continues to function correctly.
Why Replacement Matters
A functioning brake wear sensor helps protect your braking system while maintaining safety and reliability.
Benefits include:
- Accurate brake pad monitoring
- Reliable warning light operation
- Improved vehicle safety
- Protection of brake discs
- Reduced maintenance costs
- Better service planning
- Improved braking system reliability
- Long-term braking system protection
For Porsche owners, maintaining the brake wear monitoring system helps preserve the performance, safety and confidence expected from the marque.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99661236501
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
Rear Brake Pad Wear Sensor
Sold each
Maintain the safety and reliability of your Porsche braking
system with this OE Match Rear Brake Pad Wear Sensor. Designed for
Porsche 986 Boxster, Porsche 987.1 Boxster and Porsche 987.1 Cayman models,
this sensor forms an integral part of the factory brake wear monitoring system,
providing an early warning when rear brake pads have reached their service
limit.
Fits:
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
Installed directly into the rear brake pad assembly, the sensor continuously monitors brake pad thickness. As the friction material wears down, the sensor activates the dashboard brake warning system, alerting the driver that replacement is required. This helps prevent excessive brake wear, protects brake discs and ensures the braking system continues to perform safely and efficiently.
For Porsche sports cars, maintaining the brake wear monitoring system is an important part of preventative maintenance and long-term braking performance.
What Does a Brake Pad Wear Sensor Do?
The brake pad wear sensor is designed to monitor the remaining thickness of the brake pad friction material.
As the brake pad wears, the sensor eventually contacts the brake disc and completes an electrical circuit, triggering the brake wear warning light on the dashboard.
A correctly functioning sensor helps:
- Monitor brake pad condition
- Provide early brake wear warnings
- Prevent excessive brake pad wear
- Protect brake discs from damage
- Improve service planning
- Support safe braking performance
- Maintain factory brake monitoring functionality
The sensor acts as an important safeguard, ensuring brake maintenance can be carried out before braking performance is affected.
Why Do Brake Pad Wear Sensors Fail?
Brake wear sensors operate in a challenging environment exposed to heat, vibration, moisture and brake dust.
Common causes of failure include:
- Normal brake pad wear
- Sensor activation after reaching its wear limit
- Damaged wiring
- Corrosion within electrical connections
- Heat-related deterioration
- Physical damage during brake servicing
- Water ingress
- Age-related component fatigue
Because the sensor is designed to function alongside the brake pad, replacement is generally recommended whenever new brake pads are installed.
When Should a Brake Pad Wear Sensor Be Replaced?
The sensor should be replaced whenever it has been activated, damaged or when brake pads are renewed.
Common symptoms include:
- Brake wear warning light illuminated
- Intermittent brake warning messages
- Damaged sensor wiring
- False brake wear alerts
- Corroded electrical connections
- Sensor damage during servicing
- Rear brake pad replacement due to wear
Replacing the sensor during brake maintenance ensures the warning system continues to operate correctly.
Why Replacement Matters
A functioning brake wear sensor helps maintain braking safety while reducing the risk of costly brake repairs.
Benefits include:
- Accurate brake pad monitoring
- Reliable warning light operation
- Improved braking safety
- Protection of brake discs
- Better maintenance scheduling
- Reduced repair costs
- Improved braking system reliability
- Long-term component protection
For Porsche Boxster and Cayman owners, maintaining the brake wear monitoring system helps preserve the safety and performance expected from the Porsche brand.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
98661236501
The product you are viewing cross references to these numbers
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Cayman 2.7L 987C 2006-08
OE Match replacement sensor designed to monitor the wear level of the front left brake pads on Porsche Boxster 987 and Cayman 987C models. When the brake pad lining reaches a predetermined thickness, this sensor triggers a warning message on the dashboard to alert the driver that service is needed.
Fits:
Porsche 987.1 Boxster 2.7L 2005 - 2008 Front Left Caliper
Porsche 987C.1 Cayman 2.7L 2006 - 2008 Front Left Caliper
Diagram ref no 7
This OE Match brake pad wear sensor is engineered to match original Porsche specifications for electrical characteristics, connector type, and mechanical fit. It functions as a reliable early-warning device that detects excessive pad wear before the pads are fully depleted, helping prevent rotor damage and maintain safe braking performance.
Replacing a worn, damaged, or missing wear sensor with this OE Match unit ensures the vehicle’s brake monitoring system works as intended, helping you stay ahead of service intervals and maintain optimal brake health.
The brake pad wear sensor detects when the friction material on the front left brake pad has worn down to a serviceable limit. It sends a signal to the vehicle’s dashboard or onboard computer, prompting a brake service notification so pads can be replaced before damage or performance degradation occurs.
Function:
• Monitors brake pad wear on the front left axle
• Interfaces with the vehicle’s warning system
• Helps prevent rotor contact from worn pads
Brake pads naturally wear with use, and without a functioning wear sensor, you may not receive timely notification of service needs. Ignoring worn pads can lead to increased stopping distances, brake noise, and damage to rotors. Installing a proper OE Match brake pad wear sensor ensures accurate monitoring, timely pad changes, and continued confidence in your braking performance.
When to replace:
• Brake wear warning light is illuminated
• Sensor damaged, corroded, or missing
• After replacing front brake pads
• During brake system servicing or upgrades
• If wiring/connectors show signs of wear
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99761275501
The product you are viewing cross references to these numbers