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Home >> Jaguar >> 2014 >> XK Base, 2D Coupe >> Repair and Diagnosis >> External Pages >> Different car >> Section 60 (Front Disc Brake) >> Front Disc Brake >> Description And Operation >> Front Disc Brake - XK-RS Gt >> Principles Of Operation

Principles Of Operation

WARNING: This page is about a different car, the 2011 Jaguar XKR, 2011 Jaguar XK, 2010 Jaguar XKR, and 2010 Jaguar XK. However, it is still accessible from the selected car via links, so may be relevant.

When hydraulic pressure is supplied to the caliper, the three pairs of opposed pistons extend in the caliper. The three pistons in each side of the caliper force their related brake pads against the brake disc.

When a brake pad incorporating a brake pad wear sensor is approximately 75% worn, the brake pad wear sensor goes open circuit. When the instrument cluster detects the open circuit, it illuminates the amber LED (light emitting diode) in the brake warning indicator, displays an appropriate warning in the message center and sounds a warning chime. For additional information, refer to: Instrument Cluster. Refer to Instrument Cluster - DESCRIPTION AND OPERATION .

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