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Brembo Disc Brake Pad Wear Sensor – Front for Audi

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SKU A00494
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Original price $19.95 - Original price $19.95
Original price
$19.95
$19.95 - $19.95
Current price $19.95
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The Brembo Disc Brake Pad Wear Sensor (part number A00494) is a direct OEM replacement for your Audi's worn brake pad sensor. It monitors brake pad thickness and alerts you when replacement is needed, ensuring safe braking performance. Engineered with durable materials, this sensor meets or exceeds OEM standards for reliability and longevity. Fits select Audi RS5, S8, and RS7 models from 2016-2021.

Key Features & Benefits

  • Direct OEM replacement: Replaces Audi part number 4H0615121Q for a perfect fit.
  • Durable construction: Made from high-quality materials to withstand harsh driving conditions.
  • Essential safety component: Alerts driver when brake pads are worn, preventing rotor damage.
  • Easy installation: Simple plug-and-play design allows quick replacement.

Vehicle Fitment

Make Model Years Engine
Audi RS5 Sportback 2019 2.9V6
Audi RS5 Sportback 2021 2.9V6
Audi RS5 2018–2019 2.9V6
Audi RS5 2021 2.9V6
Audi S8 2016–2018 4.0V8
Audi RS7 2016–2018 4.0V8

Technical Specifications

Part Number A00494
OEM Cross-Reference 4H0615121Q

Installation Notes

Easy plug-and-play installation; professional installation recommended for best results.

About Brembo

Brembo is a globally recognized leader in high-performance brake systems, trusted by OEMs and motorsport teams alike.

This part also goes by the following cross reference.

Cross Reference Part Number:

Fits These Vehicles 6 applications
B9 A5
Make Model Engine Years
Audi RS5 Sportback 2.9V6 2019–2019
Audi RS5 Sportback 2.9V6 2021–2021
Audi RS5 2.9V6 2018–2019
Audi RS5 2.9V6 2021–2021
D4 A8
Make Model Engine Years
Audi S8 4.0V8 2016–2018
C7 A7
Make Model Engine Years
Audi RS7 4.0V8 2016–2018
Fits 6 vehicle applications Check vehicle fitment before ordering View fitment

About this Brake Pad Wear Sensor

The BREMBO A00494 brake pad wear sensor warns you, through a dashboard light, when your brake pads are nearly worn out. It sits in the pad and is designed to be worn through, so it usually needs replacing along with the pads.

Frequently asked questions

How does a brake pad wear sensor work?

A wire loop inside the sensor tip sits at the pad's minimum thickness. When the pad wears down, the rotor wears through the loop, breaking the circuit and turning on the warning light.

When do I need to replace the sensor?

Replace it whenever the warning has come on, because the worn loop cannot be reused, and whenever it is damaged during a pad change. Many owners replace it with every pad change.

Do both axles have a sensor?

Many European cars have one sensor on the front axle and one on the rear, usually on one wheel only. Check which axle this sensor is for in the product details and fitment information.

Can I replace the sensor myself?

Yes, it is usually done during a pad change: clip the sensor into the new pad, route the wire away from moving and hot parts, and connect it. The warning light may need a short drive, or on some cars a reset, to clear.

How do I make sure this brake pad wear sensor fits my car?

Compare the part numbers listed on this page with the number on your old part or in your vehicle's parts catalog, and check the fitment information. If you are unsure, contact us with your VIN before ordering.