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SEN-2BWS0177• Rear• Disc Brake Pad Wear Sensor
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GeoBrakes stocks OEM-grade disc brake pad wear sensors confirmed to fit the Mercedes Benz Cl55 Amg, the single-use probe components that trigger your Cl55 Amg dashboard warning light the moment your brake pads approach minimum thickness. Every sensor is direct-fit for the Mercedes Benz Cl55 Amg
Standard/OE$9.41
10 items in stock
Select your vehicle to see compatible products and accurate pricing
A disc brake pad wear sensor on the Mercedes Benz Cl55 Amg is your vehicle's advance warning system for brake pad replacement. It eliminates the need to rely on audible squealing from your Cl55 Amg to know your pads are getting thin, instead triggering a dashboard warning light at a preset minimum thickness on the Mercedes Benz Cl55 Amg, giving you time to plan the replacement before the pads wear through to the metal backing plate. Replacing a triggered sensor with every Cl55 Amg pad change is the only way to keep that early-warning system working for the next service interval.
The wear sensor on the Mercedes Benz Cl55 Amg is a small probe embedded in or clipped to the brake pad. When the Cl55 Amg pad wears down to the replacement threshold, the probe contacts the rotor surface. This contact creates a circuit change that signals the Mercedes Benz Cl55 Amg ABS or brake control module, illuminating the brake warning light. Once the probe on the Mercedes Benz Cl55 Amg has contacted the rotor, it is destroyed and cannot be reused. It is a single-use component by design on the Cl55 Amg.
Installing fresh brake pads on the Mercedes Benz Cl55 Amg without fitting a new wear sensor defeats the entire purpose of having a brake monitoring system on your Cl55 Amg. A previously triggered sensor probe is worn through and has no remaining material to detect the next set of Cl55 Amg pads wearing down. From day one of the new Mercedes Benz Cl55 Amg brake pads, the warning system is non-functional without a new sensor.
Wear sensor compatibility for the Mercedes Benz Cl55 Amg is more exacting than most brake parts. The probe length, contact resistance specification, and connector design must all match the Cl55 Amg brake monitoring circuit precisely. A wrong sensor triggers Mercedes Benz Cl55 Amg 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 Mercedes Benz Cl55 Amg, with front and rear positions listed separately.
Do I need to replace the brake pad wear sensor every time I change pads on my Mercedes Benz Cl55 Amg?
Yes, on Mercedes Benz Cl55 Amg vehicles equipped with electronic wear sensors. The sensor probe on your Cl55 Amg is a single-use component. Once it has contacted the rotor and triggered the Cl55 Amg warning light, the probe is consumed. Always replace the Mercedes Benz Cl55 Amg sensor during every pad change.
Does my Mercedes Benz Cl55 Amg have electronic brake pad wear sensors?
Many vehicles use a mechanical wear indicator instead of electronic sensors. Check your Mercedes Benz Cl55 Amg owner's manual or use the GeoBrakes vehicle selector to confirm whether your Cl55 Amg uses an electronic pad monitoring system.
Can a faulty wear sensor keep the brake warning light on my Mercedes Benz Cl55 Amg on after new pads are installed?
Yes. If the Mercedes Benz Cl55 Amg wear sensor from a previous brake service was not replaced, or if the probe has been damaged on your Cl55 Amg, the brake warning light will remain on even with new pads. Replacing the Cl55 Amg sensor will clear the fault and restore normal operation.