Product Information
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.
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