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$9.83
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SEN-2BWS0138• Front• Disc Brake Pad Wear Sensor
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GeoBrakes stocks OEM-grade disc brake pad wear sensors confirmed to fit the Volkswagen Passat, the single-use probe components that trigger your Passat dashboard warning light the moment your brake pads approach minimum thickness. Every sensor is direct-fit for the Volkswagen Passat
Standard/OE$9.83
6 items in stock
Select your vehicle to see compatible products and accurate pricing
A disc brake pad wear sensor on the Volkswagen Passat is your vehicle's advance warning system for brake pad replacement. It eliminates the need to rely on audible squealing from your Passat to know your pads are getting thin, instead triggering a dashboard warning light at a preset minimum thickness on the Volkswagen Passat, giving you time to plan the replacement before the pads wear through to the metal backing plate. Replacing a triggered sensor with every Passat pad change is the only way to keep that early-warning system working for the next service interval.
The wear sensor on the Volkswagen Passat is a small probe embedded in or clipped to the brake pad. When the Passat pad wears down to the replacement threshold, the probe contacts the rotor surface. This contact creates a circuit change that signals the Volkswagen Passat ABS or brake control module, illuminating the brake warning light. Once the probe on the Volkswagen Passat has contacted the rotor, it is destroyed and cannot be reused. It is a single-use component by design on the Passat.
Installing fresh brake pads on the Volkswagen Passat without fitting a new wear sensor defeats the entire purpose of having a brake monitoring system on your Passat. A previously triggered sensor probe is worn through and has no remaining material to detect the next set of Passat pads wearing down. From day one of the new Volkswagen Passat brake pads, the warning system is non-functional without a new sensor.
Wear sensor compatibility for the Volkswagen Passat is more exacting than most brake parts. The probe length, contact resistance specification, and connector design must all match the Passat brake monitoring circuit precisely. A wrong sensor triggers Volkswagen Passat warnings at the wrong pad thickness, or not at all. Every sensor in the GeoBrakes catalogue is sourced to original equipment probe and connector specifications for the Volkswagen Passat, with front and rear positions listed separately.
Do I need to replace the brake pad wear sensor every time I change pads on my Volkswagen Passat?
Yes, on Volkswagen Passat vehicles equipped with electronic wear sensors. The sensor probe on your Passat is a single-use component. Once it has contacted the rotor and triggered the Passat warning light, the probe is consumed. Always replace the Volkswagen Passat sensor during every pad change.
Does my Volkswagen Passat have electronic brake pad wear sensors?
Many vehicles use a mechanical wear indicator instead of electronic sensors. Check your Volkswagen Passat owner's manual or use the GeoBrakes vehicle selector to confirm whether your Passat uses an electronic pad monitoring system.
Can a faulty wear sensor keep the brake warning light on my Volkswagen Passat on after new pads are installed?
Yes. If the Volkswagen Passat wear sensor from a previous brake service was not replaced, or if the probe has been damaged on your Passat, the brake warning light will remain on even with new pads. Replacing the Passat sensor will clear the fault and restore normal operation.