Brake pad wear sensor. Porsche 944 1987-89  ❭  94461221200

Front Brake Pad Wear Sensor 
Sold each - 2 required per car

Maintain the safety and performance of your braking system with this OE Match Front Brake Pad Wear Sensor, designed specifically for Porsche 944 models produced between 1987 and 1989. This sensor forms an important part of the factory brake monitoring system, providing an early warning when front brake pads have reached their minimum service thickness.

Fits:

• Porsche 944 2.5L 8V 1982-87
  
• Porsche 944 2.7L 8V 1988-89
• Porsche 944S 2.5L 16V 1987-88

Installed within the front brake pad assembly, the wear sensor is designed to trigger the dashboard brake wear warning light when the friction material becomes worn. This allows owners to replace brake pads before braking efficiency is compromised or expensive brake disc damage occurs.

For a performance-focused sports car such as the Porsche 944, maintaining the braking system in peak condition is essential for both safety and driving confidence.

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, the sensor eventually contacts the brake disc and completes an electrical circuit that illuminates 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 maintenance planning
• Support safe braking performance
• Maintain factory brake monitoring functionality

The sensor acts as an early warning system, helping drivers address brake wear before it becomes a safety concern.

Why Do Brake Pad Wear Sensors Fail?

Brake wear sensors operate in an environment exposed to heat, moisture, road debris and vibration.

Common causes of failure include:

• Normal brake pad wear
• Sensor activation through brake pad wear
• Damaged sensor wiring
• Corrosion in electrical connections
• Heat damage
• Physical damage during brake servicing
• Water and dirt contamination
• Age-related deterioration

Because the sensor is designed to wear alongside the brake pad, replacement is often 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 new brake pads are fitted.

Common signs include:

• Brake wear warning light illuminated
• Intermittent brake warning messages
• Damaged or broken wiring
• False brake wear warnings
• Corrosion at sensor connections
• Brake pad replacement due to wear
• Sensor damage during servicing

Replacing the sensor during brake maintenance helps ensure continued reliability of the brake monitoring system.

Why Replacement Matters

A functioning brake pad wear sensor helps maintain both safety and braking system reliability.

Benefits include:

• Accurate brake wear monitoring
• Early maintenance alerts
• Protection of brake discs
• Improved braking safety
• Reliable dashboard warning operation
• Reduced risk of excessive brake wear
• Better service planning
• Long-term braking system protection

For Porsche 944 owners, maintaining the factory brake wear warning system helps preserve both performance and peace of mind.