hand brake JAGUAR XFR 2010 1.G Owner's Manual

BRAKE CALIPERS System Operation

When hydraulic pressure is supplied to the caliper, the pistons extend to force the inner pad against the brake disc. The caliper
reacts and slides along two guide pins to bring the outer pad into contact with the brake disc.

BRAKE PAD WEAR SENSORS

When a brake pad incorporating a brake pad wear sensor is approximately 75% worn, the sensor wire within the pad material
is worn through and 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.
Refer to: Instrument Cluster (413-01 Instrument Cluster, Description and Operation).

NOTE: A new pad wear sensor lead must be fitted whenever the brake pads are changed, irrespective of the brake pad
warning sensor being triggered.



BRAKE CALIPERS Component Description

Each caliper is mounted within a fixed carrier that is secured to the rear wheel knuckle with two bolts. Each outboard brake pad
is installed with a wire anti-rattle spring.

The brake calipers on SC (supercharger) vehicles are painted and also include a logo badge, secured with two screws, which
must be removed in order to change the brake pads.
The inboard brake pad of the RH (right-hand) brake incorporates a wear sensor.

BRAKE PAD WEAR SENSORS

The brake pad wear sensor is wired in series with a wear sensor on the LH (left-hand) front brake and the instrument cluster. If
the thickness of one of the brake pads connected to a wear sensor decreases to a predetermined limit, the instrument cluster
illuminates the brake warning indicator.

5. NOTE: Left-hand shown, right-hand similar.

Torque: 10 Nm





















6. CAUTIONS:


Always plug any open connections to prevent
contamination.


If brake fluid is spilt on the paintwork, the affected
area must be immediately washed down with cold water.
NOTES:


To prevent the loss of brake fluid, using the special
tool apply the brake pedal and set to 40mm ( 1.6 in ) below
the rest position.


Left-hand shown, right-hand similar.
Torque: 42 Nm

Installation
9.

























10.
WARNING: If the brake caliper piston seal is damaged
a new brake caliper must be installed.


CAUTION: Do not allow the brake caliper to hang on
the brake hose.


NOTE: Left-hand shown, right-hand similar.

Torque: 28 Nm














NOTE: Left-hand shown, right-hand similar.

1. To install, reverse the removal procedure.

2. Refer to: Brake System Bleeding (206-00 Brake System - General Information, General Procedures).

8. WARNING: If the brake caliper piston seal is damaged a
new brake caliper must be installed.


CAUTION: Do not allow the brake caliper to hang on
the brake hose.


NOTE: Left-hand shown, right-hand similar.

Torque: 28 Nm













9. NOTE: Left-hand shown, right-hand similar.

10.























11. NOTE: Left-hand shown, right-hand similar.

Special Tool(s): 303-588 Special Tool(s): 206-080 Special Tool(s): 206-081 Using the special tools, fully retract the brake
caliper piston.














12.
Repeat the above procedure on the opposite side.

Installation


1. NOTE: The brake pad wear sensor retaining tang must be
installed to the sensor prior to installation to the brake
pad.











2. To install, reverse the removal procedure.

3. Repeat the above procedure on the opposite side.

7. Connect the electrical connectors in the sequence shown.




















8. Install the RH loadspace trim panel.
For additional information, refer to: Loadspace Trim Panel RH (501-05 Interior Trim and Ornamentation, Removal and Installation).


9. WARNING: Calibrate the electric park brake using Jaguar approved
diagnostic equipment. If Jaguar approved diagnostic equipment is not
available disconnect the battery for approximatly 30 seconds , the
vehicle will then prompt the driver to carry out the calibration procedure
as per the vehicle hand book on re-connection.
Calibrate the electric park brake.

7.
Installation

1. To install, reverse the removal procedure.


2. CAUTION: Make sure the wiring harness is correctly routed
to avoid contact with the halfshaft. Failure to follow this
instruction may result in damage to the component.












3. CAUTION: Calibrate the electric park brake using Jaguar approved
diagnostic system. If the Jaguar approved diagnostic system is not
available disconnect the battery for approximately 30 seconds, the
vehicle will then prompt the driver to carry out the calibration procedure
as per the vehicle hand book on re-connection.
Calibrate the electric parking brake (EPB) using the diagnostic tool.

Published: 11-May-2011
Hydraulic Brake Actuation - Hydraulic Brake Actuation - Component Location
Description and Operation


NOTE: RHD (right-hand drive) installation shown, LHD (left-hand drive) installation similar.

Component Location



Item Description 1 Brake master cylinder and fluid reservoir 2 Brake pedal 3 Brake pipes 4 Stoplamp switch 5 ABS (anti-lock brake system) module/ HCU (hydraulic control unit) 6 Brake booster

1 LH (left-hand) front brake 2 RH (right-hand) rear brake 3 LH rear brake 4 RH front brake 5 Primary circuit inlet port 6 Secondary circuit inlet port The ABS module is located in the passenger side, rear engine bay and incorporates the HCU. The HCU is a four channel unit that modulates the supply of hydraulic pressure to the brakes under control of the ABS module.
The primary and secondary outlets of the master cylinder are connected to the primary and secondary circuits within the HCU. The primary circuit in the HCU has separate outlet ports to the RH front and LH rear brakes. The secondary circuit in the HCU has separate outlet ports to the LH front and RH rear brakes.

Power Brake Actuation - Brake Booster - Component Location
Description and Operation


NOTE: RHD (right-hand drive) installation shown, LHD (left-hand drive) installation similar.

Component Location Published: 11-May-2011



Item Description 1 Output pushrod 2 Brake booster 3 Input pushrod 4 Vacuum pipe 5 Non return valve