Genuine Bentley Bentayga Front Brake Pad Wear Sensor - 4M0615121AB
Product Details & Fitment
Ensure your Bentley’s safety systems are factory-perfect with the Genuine 4M0615121AB Wear Sensor.
Brake wear sensors are single-use components that complete an electrical circuit when the brake pads reach a critical thickness. Once the sensor makes contact with the rotor and triggers the dash light, the internal wire is severed and the sensor must be replaced. The 4M0615121AB is the latest engineering revision from Bentley, featuring high-heat resistant insulation to prevent "False Positive" warnings caused by the extreme temperatures of the 6.0L W12 and 4.0L V8 braking systems.
Topical Authority Specs:
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OEM Part Number: 4M0615121AB.
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Replaces / Supersedes: 4M0615121R, 4M0615121S.
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Quantity Required: 2 per Front Axle (1 per side).
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Compatibility: Bentley Bentayga (2016–2026+), Audi Q7/Q8, Lamborghini Urus.
The Engineering Advantage: This genuine sensor is designed to clip perfectly into the OEM brake pad backing plate. Unlike universal aftermarket sensors that may have loose fitment—leading to rattling or premature wire failure—the 4M0615121AB ensures a secure, vibration-resistant connection that communicates perfectly with the Bentley chassis control module.
Tech Tip:
When installing the 4M0615121AB, ensure the wire is routed through all factory plastic loom clips on the steering knuckle to prevent the wire from rubbing against the wheel rim or suspension components.
