Jaguar XJ (X350). Manual — part 183

bagde which has to be removed when changing the brake pads.The anchor plate is attached to
the wheel knuckle with two bolts. The hydraulic system provides separate circuits for each
pair of diagonally opposed wheels (i.e. left front, right rear and right front, left rear).

The brake disc is manufactured from cast iron and is of the vented type. It is retained on the
hub by two retaining clips and the wheel studs.

The rear brake caliper incorporates the parking brake of which is self adjusting according to
brake pad wear.

Rear Disc Brake

COMPONENT LOCATION

Item

Part Number

Description

1

Caliper carrier bolts (2 off)

2

Brake dust shield

3

Rivets (3 off)

4

Brake disc

5

Retaining washers (2 off)

6

Outboard brake pad

www.

7

Inboard brake pad

8

Piston dust cover

9

Piston

10

Parking brake return spring

11

Parking brake lever

12

Parking brake lever stop

13

Brake hose

14

Guide pin dust cover (2 off)

15

Guide pins (2 off)

16

Bleed screw

17

Bleed screw dust cap

18

Anti-rattle spring

19

Guide pin bush (2 off)

20

Caliper carrier

21

Screw (2 off) - (supercharged model)

22

'R' type logo badge (supercharged model)

23

Brake caliper housing

24

Bolt - brake hose to caliper

INTRODUCTION

The rear braking system on both the naturally aspirated and supercharged vehicles features 326 x 20

mm (12.83 x 0.79 in) diameter ventilated brake discs with aluminum, single acting piston, sliding

calipers.

The brake calipers on the supercharged vehicle are painted and also include a logo badge. The logo

badge must be removed in order to renew the brake pads.

The caliper is mounted within a fixed carrier that is secured to the rear 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 wire type anti-rattle spring.

NOTE:

There is no wear indicator installed to the rear 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.

Also incorporated into each rear brake caliper carrier is the parking brake mechanism. For additional

information, refer to

Parking Brake

(206-05 )

Repairs

CAUTION: Whilst carrying out rear parking brake related service procedures, the tension on

the rear parking brake release actuator will need to be released. Failure to follow this instruction

may result in the parking brake functioning incorrectly or becoming inoperative.

Before carrying out any work on the rear brakes, the Jaguar approved diagnostic system must be

connected and the 'parking brake un-jam' routine run.

When all work is carried out on the rear brakes, the parking brake system will require resetting. For

additional information, refer to

Parking Brake

(206-05 )

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