Section 2 (Disc): Description
All models are equipped with front and rear disc brakes. On Defender and Discovery, front calipers contain 4 pistons and rear calipers contain 2 pistons. On Range Rover, front calipers contain 2 pistons and rear calipers contain one piston. Non-ABS systems use a Pressure Reducing Valve (PRV) between front (secondary circuit) and rear (primary circuit) brakes. Brake fluid reservoir cap includes a brake fluid level switch. Brake fluid level switch illuminates an instrument panel warning light when fluid is too low.
Parking brake is a single drum brake assembly mounted on the rear of the transfer case output shaft. Parking brake acts on rear driveshaft, and is cable-actuated by hand brake lever.
A vacuum-assisted brake booster is used to ease brake pedal application. A vacuum check valve, located in vacuum supply hose, prevents vacuum leakdown when engine is off.