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KSE-100099• Front• Disc Brake Pad Wear Sensor Kits
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GeoBrakes stocks disc brake pad wear sensor kits confirmed to fit the Bmw M4, combining the wear sensor probe manufactured to the exact OEM probe length and contact resistance for the M4 with connector hardware, retaining clips, and in pad-inclusive configurations the brake pads themselves, so the complete brake monitoring system on your Bmw M4 is restored correctly in a single service.
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A brake pad wear sensor kit for the Bmw M4 does one critical thing that a pad change alone cannot: it ensures the brake warning light on your M4 dashboard accurately reflects the condition of the next set of brake pads. Without a new sensor on the Bmw M4, the warning system is non-functional from day one of the new pads, there is no advance notice for the next replacement cycle on your M4. On Bmw M4 vehicles where a previous service skipped the sensor, the brake warning light may also remain on permanently after new pads are installed on the M4.
The kit for your Bmw M4 includes the brake pad wear sensor probe unit manufactured to OEM contact resistance and threshold depth for the M4 monitoring circuit, the wiring connector mating with the Bmw M4 brake monitoring harness where required, the retaining clip or mounting bracket securing the sensor to the M4 brake pad or caliper correctly, and in pad-inclusive kits, the brake pads for the Bmw M4 with sensor pre-assembled at factory-correct position on the M4 pad.
A brake pad wear sensor on the Bmw M4 is a calibrated component manufactured to trigger the M4 brake warning circuit at a specific remaining pad thickness. Too long and it triggers early on your Bmw M4, sending drivers for an unnecessary brake service with significant M4 pad life remaining. Too short and it triggers late or not at all on the M4, leaving the driver with no advance warning as the Bmw M4 pads approach the metal backing plate.
Wear sensor compatibility for the Bmw M4 is more exacting than most brake components. Probe length, contact resistance specification, and connector pinout must all match the M4 brake monitoring circuit exactly. A wrong-spec sensor on your Bmw M4 either triggers warnings at the wrong pad thickness or fails to connect to the existing M4 harness. Every kit in the GeoBrakes catalogue is sourced to OEM specification for the Bmw M4 exact year and model, with front and rear positions listed separately.
How do I know if my Bmw M4 has electronic brake pad wear sensors?
Check your Bmw M4 owner's manual for a brake pad warning light in the instrument cluster section. Use the GeoBrakes vehicle selector to confirm whether your Bmw M4 application requires an electronic sensor kit.
Can I buy the wear sensor separately from the brake pads for my Bmw M4?
Yes. GeoBrakes carries sensors as standalone components and as part of sensor kits for the Bmw M4. If replacing M4 pads that did not include a sensor and the existing sensor has already triggered, a standalone sensor or sensor kit is the correct purchase for your Bmw M4.
Will the brake warning light turn off automatically after installing a new sensor on my Bmw M4?
On most Bmw M4 vehicles, the brake pad warning light turns off once the new sensor is correctly installed and the ignition is cycled. On some Bmw M4 European platforms, a diagnostic scan tool reset may be required. Check your M4 service documentation if the light does not clear after installation.