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- Porsche 957 Cayenne Turbo / Turbo S 4.8L 2007-10
Rear Brake Pad Wear Sensor
Maintain the safety and performance of your Porsche braking
system with this OE Match Rear Brake Pad Wear Sensor, designed
specifically for the Porsche 957 Cayenne Turbo. Manufactured to original
equipment specifications, this high-quality replacement brake wear sensor
accurately monitors rear brake pad wear and alerts the driver when the pads
have reached their service limit.
Fits:
- Porsche 957 Cayenne Turbo / Turbo S 4.8L 2007-10
Designed as a direct replacement for the factory sensor, it provides reliable operation, precise fitment and dependable brake wear monitoring, helping to ensure your Porsche continues to deliver the braking performance expected from a high-performance SUV.
What Does the Rear Brake Pad Wear Sensor Do?
The rear brake pad wear sensor, also known as a brake pad warning wire, is fitted to the brake pad and monitors the thickness of the friction material throughout its service life.
Its primary functions include:
- Monitoring rear brake pad wear.
- Activating the dashboard brake wear warning light when replacement is required.
- Helping prevent excessive brake pad wear.
- Protecting expensive brake discs from damage.
- Supporting routine brake maintenance.
- Helping maintain safe braking performance.
This simple but essential component allows brake pads to be replaced before they become dangerously worn.
Why Do Brake Pad Wear Sensors Fail?
Brake wear sensors are exposed to constant heat, moisture,
dirt and vibration. Common causes of failure include:
- Normal activation once the brake pads reach their wear limit.
- Damage during brake pad replacement.
- Heat deterioration from repeated braking.
- Corrosion affecting the sensor wiring or connectors.
- Impact damage from road debris.
- Age-related deterioration of the cable insulation.
Once activated, most Porsche brake wear sensors cannot be reused and should always be replaced when new brake pads are fitted.
When Should the Rear Brake Pad Wear Sensor Be Replaced?
The brake pad wear sensor should be replaced whenever:
- New rear brake pads are installed.
- The dashboard brake wear warning light is illuminated.
- The sensor has been damaged during servicing.
- The wiring is cracked or deteriorated.
- The connector shows signs of corrosion.
- The sensor has been activated through normal brake pad wear.
Replacing the sensor during every brake service helps ensure the brake wear monitoring system continues to operate accurately and reliably.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95561236572
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 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
Front Brake Pad Wear Sensors - Sold each
Maintain the safety and performance of your Porsche braking
system with these OE Match Front Brake Pad Wear Sensors. Designed for Porsche 997 Carrera, Porsche 987 Boxster S and
Porsche 987 Cayman S models, these sensors form a critical part of the factory
brake wear monitoring system, providing an early warning when front brake pads
approach their minimum service thickness.
Fits:
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
Mounted directly within the front brake pad assembly, the sensors continuously monitor brake pad wear and trigger the dashboard brake warning light when replacement is required. This allows owners to schedule brake maintenance before braking performance is affected or expensive brake disc damage occurs.
For high-performance Porsche sports cars, maintaining a fully operational brake wear monitoring system is essential for preserving braking efficiency, safety and long-term reliability.
What Do Brake Pad Wear Sensors Do?
Brake pad wear sensors monitor the remaining thickness of the brake pad friction material throughout its service life.
As the brake pads wear 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 sensors act as a valuable preventative maintenance feature, helping avoid unnecessary brake system damage.
Why Do Brake Pad Wear Sensors Fail?
Brake wear sensors are exposed to significant heat, vibration, moisture and road contamination during normal use.
Common causes of failure include:
- Normal brake pad wear
- Sensor activation after reaching wear limits
- Damaged wiring
- Corrosion within connectors
- Heat-related deterioration
- Physical damage during brake servicing
- Water ingress Age-related material fatigue
Because the sensor is designed to work alongside the brake pads, replacement is normally recommended whenever new brake pads are installed.
When Should Brake Pad Wear Sensors Be Replaced?
Brake wear sensors should be replaced whenever they have been activated, damaged or during brake pad replacement.
Common symptoms include:
- Brake wear warning light illuminated
- Intermittent brake warning messages
- Damaged or broken sensor wiring
- False brake wear warnings
- Corroded electrical connections
- Sensor damage during brake servicing
- Front brake pad replacement due to wear
Replacing the sensors during routine brake maintenance ensures the warning system remains fully operational.
Why Replacement Matters
A functioning brake wear monitoring system helps maintain both safety and braking performance.
Benefits include:
- Accurate brake pad monitoring
- Reliable warning light operation
- Improved braking safety
- Protection of brake discs
- Reduced maintenance costs
- Better service planning
- Improved braking system reliability
- Long-term component protection
For Porsche owners, replacing worn brake wear sensors helps maintain factory braking standards and driving confidence.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99761275
The product you are viewing cross references to these numbers
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
For cars with Ceramic brake PCCB (I450)
Porsche 997.1 C2 / C2S 2005-08 FRONT
Porsche 997.2 C2 / C2S 2009-12 FRONT
Porsche 997.2 Carrera GTS / 4 GTS 2009-12 FRONT
Porsche 987.1 Boxster S 2005-08 FRONT
Porsche 987.2 Boxster S / Boxster Spyder 2009-12 FRONT
Porsche 987C.1 Cayman S 2005-08 FRONT
Porsche 987C.2 Cayman S / Cayman R 2009-12 FRONT
Price shown is for each wire sensor.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99761267
The product you are viewing cross references to these numbers