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- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
Rear Brake Pad Wear Sensor - Sold each
Maintain the safety, reliability and performance of your
Porsche braking system with this OE Match Rear Brake Pad Wear Sensor. Designed specifically for Porsche 997 Carrera 2S and Carrera 4S
models, this sensor forms a vital part of the factory brake wear monitoring
system, helping drivers monitor rear brake pad condition and schedule
maintenance before braking performance is affected.
Fits:
Installed directly into the rear brake pad assembly, the wear sensor monitors the remaining thickness of the brake pad friction material. When the pads approach their minimum service limit, the sensor activates the dashboard brake wear warning light, alerting the driver that replacement is required.
For high-performance sports cars such as the Porsche 997 Carrera S models, maintaining the brake wear monitoring system is essential for preserving braking efficiency, protecting expensive brake components and ensuring maximum driving confidence.
What Does a Brake Pad Wear Sensor Do?
The brake pad wear sensor continuously monitors brake pad thickness throughout its service life.
As the brake friction material wears down, the sensor eventually contacts the brake disc and completes an electrical circuit, triggering the brake wear warning light on the instrument cluster.
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 scheduling
- Support safe braking performance
- Maintain factory brake monitoring functionality
The sensor acts as an important preventative maintenance component, helping avoid costly brake repairs.
Why Do Brake Pad Wear Sensors Fail?
Brake wear sensors are exposed to extreme operating conditions including heat, vibration, moisture and road contamination.
Common causes of failure include:
- Normal brake pad wear
- Sensor activation when brake pads reach their wear limit
- Damaged wiring
- Corrosion in electrical connectors
- Heat-related deterioration
- Water ingress
- Physical damage during brake servicing
- Age-related material fatigue
As brake wear sensors are considered service items, they should be replaced whenever they become activated or damaged.
When Should a Brake Pad Wear Sensor Be Replaced?
Replacement is recommended whenever brake pads are changed or if the sensor has become damaged.
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
- Rear brake pad replacement due to wear
Replacing the sensor during brake pad replacement ensures the monitoring system continues to function correctly.
Why Replacement Matters
A functioning brake wear sensor helps maintain braking safety and protects expensive brake system components.
Benefits include:
- Accurate brake pad monitoring
- Reliable dashboard warning operation
- Improved braking safety
- Protection of brake discs
- Reduced maintenance costs
- Better servicing planning
- Improved brake system reliability
- Long-term braking component protection
For Porsche 997 owners, maintaining the brake wear monitoring system helps preserve both performance and peace of mind.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99761267602
The product you are viewing cross references to these numbers
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
Brake pad wear sensor – Porsche 911 1984–89 99361296502 by OEMatch for selected Porsche 911 3.2L models from 1984–1989, including G50 applications. This replacement sensor supports the brake pad wear warning circuit and is intended to match the supplied Porsche reference for correct form, fit and function.
What This Product Does
A brake pad wear sensor is an electrical service component positioned at the brake assembly to indicate pad wear through the vehicle warning system. Many owners search for genuine or OEM alternatives; OEMatch supplies direct-fit replacements designed to match the original form, fit and function for Porsche applications.
Functions
- Monitors brake pad wear at the fitted brake position.
- Supports the brake wear warning circuit.
- Helps identify when pad replacement or brake inspection may be required.
- Can be renewed during pad replacement or wider brake service work.
- Matches Porsche reference 99361296502 where this number is specified for the vehicle.
Symptoms of Fault
- Brake wear warning message or warning lamp remains active after pad replacement.
- Damaged sensor cable near the caliper area.
- Broken retaining clip or poor location around the brake assembly.
- Intermittent brake wear warning caused by a worn or damaged sensor.
- Repeat warning issues where the wrong sensor variant has been fitted.
Why Replacement Matters
Brake pad wear sensors are commonly replaced when brake pads are changed, especially if the existing sensor has worn through, broken during removal, or triggered the warning circuit. Selecting the correct OEMatch sensor helps maintain the intended warning function and reduces the risk of repeat work caused by damaged wiring or incorrect fitment.
Fits
- 911 and 912 (1965–1989)
- 911 and 912 (1965–1989): 911 1984–1986 3.2L
- 911 and 912 (1965–1989): 911 1987–1989 3.2L G50
OE Reference
- 99361296502
FAQs
- Should this sensor be replaced with brake pads?
Wear sensors are often renewed during pad replacement, particularly if the old sensor is marked, damaged or has already operated. - How should compatibility be checked?
Cross-check Porsche reference 99361296502, model year, engine details and connector type before ordering. - Is this for all Porsche 911 models?
No. Use the listed fitment information to confirm suitability for the exact Porsche model and year.
Check fitment for your specific Porsche model, year and engine before ordering.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99361296502
The product you are viewing cross references to these numbers
- 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
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
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 944 2.5L 8V 1982-87
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