Bosch 1987474585 Front Brake Pad Wear Sensor

Description

The Bosch 1987474585 is a front brake pad wear sensor. This sensor is a critical component of the braking system, monitoring the thickness of the front brake pads and alerting the driver when they need replacement. It's designed for vehicles equipped with electronic braking systems, ensuring optimal braking performance and preventing damage to rotors. This sensor enhances safety and reduces maintenance costs by providing early warning of pad wear. The sensor dimensions are 9 x 129 x 169 mm and it is manufactured in Germany.

Key Features & Benefits

This little guy essentially monitors how much life is left in your front brake pads. It’s a simple circuit – it has a little contact point that touches the brake rotor when your pads are still a good thickness. As your pads wear down and get thinner, eventually that contact point loses touch with the rotor. When that happens, it completes or breaks the circuit, sending a signal to your dashboard warning light. It doesn’t stop your brakes from working, it just lets you know they’re getting thin. Think of it like a really early warning system. It doesn’t directly impact how well you stop, but it prevents you from driving down to metal on metal, which can damage the rotors—and that gets expensive. It acts like a shield, protecting you from a bigger repair bill later. It's usually integrated right into one of the brake pads, so when you replace your pads, you replace the sensor at the same time.

Symptoms, Risks & Replacements

You’ll notice if it fails because that warning light on your dash will stay on even after you’ve parked and restarted the car. Ignoring it isn't a safety issue right away, but it's definitely a sign you need to check your brake pad thickness. Driving with completely worn pads damages the rotors and calipers, and that’s a much bigger job than just replacing pads. It's preventative maintenance. You can usually find these pretty easily online, places like Fixparts Online carry them. It’s a cheap part to replace when you’re already doing the brakes, and saves you headaches down the road.

Warranty Information

Bosch Front Brake Pad Wear Sensor (MPN 1987474585) comes with a 1-year warranty.