Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSJAGUAR2008XK (X150) V8-4.2LREPAIR AND DIAGNOSISBRAKES AND TRACTION CONTROLDISC BRAKE SYSTEMDESCRIPTION AND OPERATIONFRONTSTANDARD BRAKES
2008 Jaguar XK (X150) V8-4.2L
Standard Brakes
2008 Jaguar XK (X150) V8-4.2LSECTION Standard Brakes
STANDARD BRAKES - COMPONENT LOCATION INTRODUCTION
The front standard type braking system used on the naturally aspirated vehicles features 326 x 20 mm (12.83 x 0.79 in) diameter ventilated brake discs and cast iron, single piston, sliding calipers.
The caliper is mounted within a fixed carrier that is secured to the front wheel knuckle with 2 bolts. When hydraulic pressure is supplied to the caliper, the piston extends to force the inner pad against the brake disc. The caliper reacts and slides along 2 guide pins to bring the outer pad into contact with the brake disc.
Each inboard brake pad is installed with a pressed steel anti-rattle spring.
NOTE: There is no wear indicator installed to the front brake pads.
The brake disc is manufactured from cast iron and is of the vented type. The disc is retained on the wheel hub by 2 retaining washers and the wheel nuts.
The front standard type braking system used on the naturally aspirated vehicles features 326 x 20 mm (12.83 x 0.79 in) diameter ventilated brake discs and cast iron, single piston, sliding calipers.
The caliper is mounted within a fixed carrier that is secured to the front wheel knuckle with 2 bolts. When hydraulic pressure is supplied to the caliper, the piston extends to force the inner pad against the brake disc. The caliper reacts and slides along 2 guide pins to bring the outer pad into contact with the brake disc.
Each inboard brake pad is installed with a pressed steel anti-rattle spring.
NOTE: There is no wear indicator installed to the front brake pads.
The brake disc is manufactured from cast iron and is of the vented type. The disc is retained on the wheel hub by 2 retaining washers and the wheel nuts.
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.