Brake Pad Wear Sensors

Brake Pad Wear Sensor.
The OE Match Brake Pad Wear Sensor is a high-quality replacement braking system component designed to monitor brake pad condition and alert the driver when the pads have reached their minimum safe operating thickness. Manufactured to OE specifications for fit, performance and reliability, this sensor forms an essential part of the vehicle's brake wear monitoring system.  

Fits:

• Porsche 911 1984-1986 3.2L
• Porsche 911 1987-1989 3.2L G50
• Porsche 911 1978-1989 3.3L Turbo (930)
• Porsche 944 2.5L 8V 1982-87
• Porsche 944 Turbo 2.5L 8V 1985-88  

Fitted directly into the brake pad assembly, the sensor continuously monitors brake pad wear and communicates with the vehicle's warning system. When the friction material wears to a predetermined level, the sensor activates the brake pad wear warning light, ensuring maintenance can be carried out before braking performance is compromised.  

What This Product Does:

• Monitors brake pad wear throughout the life of the brake pads.
• Activates the brake wear warning light when replacement is required.
• Provides early notification of brake maintenance needs.
• Helps prevent excessive brake pad wear.
• Protects brake discs from damage caused by worn brake pads.
• Supports safe and effective braking performance.
• Assists with preventative brake system maintenance.

Symptoms Of Wear Or Failure:

• Brake pad wear warning light remaining illuminated.
• Intermittent brake wear warning messages.
• False brake wear alerts despite sufficient brake pad material.
• No warning light when brake pads are excessively worn.
• Damaged, broken or frayed sensor wiring.
• Corrosion or physical damage to the sensor body.
• Brake monitoring fault codes stored within the vehicle system.
• Warning light remaining active after brake pad replacement.

Why Replacement Matters:

• Brake pad wear sensors operate in demanding conditions and are constantly exposed to brake dust, heat, moisture, road debris and vibration. In many applications, the sensor is designed to wear alongside the brake pads and should be replaced whenever new brake pads are fitted to ensure continued monitoring accuracy.
• A damaged or malfunctioning sensor can provide inaccurate brake wear information, potentially leading to unnecessary warning lights or failure to notify the driver when brake pads require replacement. If brake pads wear beyond their safe operating limit, braking performance can be compromised and costly damage to brake discs may occur.
• Replacing a worn brake pad wear sensor restores accurate brake monitoring, ensures correct operation of the warning system and helps maintain optimum braking performance and safety. An OE Match replacement provides factory-style fitment, dependable operation and long-term reliability, making it an essential component during brake servicing and maintenance.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

94461221105

The product you are viewing cross references to these numbers

Brake pad wear sensors help to indicate if your brake pads need changing. These should normally be replaced when replacing your brake pads




Porsche 944 1985-86 front

Porsche 911 1984-89 3.2L rear (Old pin type)

Price is for each wire sensor.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

94461221103

The product you are viewing cross references to these numbers

Brake pad wear sensors help to indicate if your brake pads need changing. These should normally be replaced when replacing your brake pads




Porsche 944 1985-86 front

Porsche 911 1984-89 3.2L rear (Old pin type)

Price is for each wire sensor.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

94461221103

The product you are viewing cross references to these numbers

Rear Brake Pad Wear Sensor.
The OE Match Rear Brake Pad Wear Sensor is a high-quality replacement braking system component designed to monitor the condition of the rear brake pads and provide a warning when the friction material reaches its minimum safe operating thickness. Manufactured to OE specifications for fit, performance and reliability, this sensor helps ensure timely brake maintenance and supports safe, consistent braking performance.  



Fits:

• Porsche 944 2.5L 8V 1982-87
• Porsche 944 Turbo 2.5L 8V 1985-88

Installed directly into the rear brake pad assembly, the sensor forms part of the vehicle's brake wear monitoring system. As the brake pads wear down through normal use, the sensor detects when the service limit has been reached and activates the dashboard brake wear warning light, notifying the driver that brake pad replacement is required.

What This Product Does:   

• Monitors rear brake pad wear throughout the life of the brake pads.
• Activates the brake wear warning indicator when service is required.
• Provides early notification of brake maintenance requirements.
• Helps prevent excessive brake pad wear.
• Protects brake discs from damage caused by worn brake pads.
• Supports safe and efficient braking performance.
• Assists with preventative maintenance of the braking system.

Symptoms Of Wear Or Failure:

• Brake wear warning light remaining illuminated.
• Intermittent brake wear warning messages.
• False brake wear alerts despite adequate brake pad thickness.
• No warning indication when brake pads are excessively worn.
• Damaged, broken or frayed sensor wiring.
• Corrosion or physical damage to the sensor body.
• Brake monitoring fault codes stored within the vehicle system.
• Warning light remaining active after brake pad replacement.

Why Replacement Matters:

• Rear brake pad wear sensors operate in harsh conditions and are continually exposed to brake dust, heat, moisture, road debris and vibration. In many applications, the sensor is designed to wear alongside the brake pads and should be replaced whenever new rear brake pads are installed to ensure accurate wear monitoring.
• A damaged or malfunctioning sensor can provide inaccurate brake wear information, potentially resulting in unnecessary warning lights or failure to alert the driver when brake service is required. If brake pads wear beyond their safe operating limit, braking efficiency can be reduced and costly damage to the brake discs may occur.
• Replacing a worn rear brake pad wear sensor restores accurate brake wear monitoring, ensures proper operation of the dashboard warning system and helps maintain safe braking performance. An OE Match replacement provides factory-style fitment, dependable operation and long-term reliability, making it an essential component during brake servicing and maintenance.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

94461221104

The product you are viewing cross references to these numbers

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.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

94461221200

The product you are viewing cross references to these numbers

Brake Pad Wear Sensor. 
The OE Match Brake Pad Wear Sensor is a high-quality replacement braking system component designed to monitor brake pad wear and provide a timely warning when the brake pads approach their minimum safe thickness. Manufactured to OE specifications for fit, reliability and performance, this sensor is an essential part of the vehicle's brake wear monitoring system.  

Fits:

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

Installed directly into the brake pad assembly, the sensor continuously monitors the condition of the brake friction material. When the pads wear to a predetermined limit, the sensor activates the dashboard brake wear warning light, alerting the driver that brake service is required. This helps maintain optimum braking performance and prevents unnecessary damage to other brake system components.  

What This Product Does:

• Monitors brake pad wear throughout the life of the brake pads.
• Activates the brake wear warning light when replacement is required.
• Provides early notification of brake maintenance needs.
• Helps prevent excessive brake pad wear.
• Protects brake discs from damage caused by worn brake pads.
• Supports safe and effective braking performance.
• Assists with preventative brake system maintenance.

Symptoms Of Wear Or Failure:

• Brake wear warning light remaining permanently illuminated.
• Intermittent brake wear warning messages.
• False brake wear alerts despite sufficient brake pad thickness.
• No warning indication when brake pads are excessively worn.
• Damaged, frayed or broken sensor wiring.
• Corrosion or physical damage to the sensor body.
• Brake monitoring fault codes stored within the vehicle system.
• Warning light remaining active after brake pad replacement.

Why Replacement Matters:

• Brake pad wear sensors operate in a harsh environment and are exposed to brake dust, heat, moisture, road debris and constant vibration. In many applications, the sensor is designed to wear alongside the brake pads and should be replaced whenever new brake pads are installed to maintain accurate monitoring.
• A damaged or malfunctioning sensor can provide inaccurate wear information, potentially leading to unnecessary warning lights or failure to notify the driver when brake pads require replacement. If brake pads wear beyond their safe operating limit, braking performance may be reduced and costly damage to the brake discs can occur.
• Replacing a worn brake pad wear sensor restores accurate brake wear monitoring, ensures correct operation of the dashboard warning system and helps maintain safe braking performance. An OE Match replacement provides factory-style fitment, dependable operation and long-term reliability, making it an essential component during brake servicing and maintenance.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

94461221201

The product you are viewing cross references to these numbers

ABS - brake harness front left
Wire harness for connection ABS sensor / brake pad warning front (left).
2 x barrel connector with grommets and ground wire on both sides

Fits:
Porsche 944 1985 - 1991

Diagram ref no 2

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

94461211100

The product you are viewing cross references to these numbers

ABS - brake harness rear.
Wire harness for connection ABS sensor / brake pad warning rear.
2 x barrel connector with grommets and ground wire on both sides

Fits:
Porsche 944 1985 - 1991

Diagram ref no 4

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

94461211200

The product you are viewing cross references to these numbers