17Refit the washer, spring and spring cover.
Compress the spring and refit the circlip, then
release the spring compressor.
18Lubricate the caliper bore with clean
hydraulic fluid and fit a new piston seal.
19Reassemble the piston components.
Lubricate the contact face of the adjuster nut
with a little brake grease, then fit the adjuster
nut (with new seal), thrust bearing,
thrustwasher, wave washer and the second
thrustwasher. Secure with the circlip.
20Fit a new dust boot. The manufacturers
recommend that it be fitted to the caliper
groove and the piston fitted afterwards; it is
also possible to fit the boot to the piston first
and engage it in the caliper groove afterwards.
Either way it is a fiddly business.
21Refit the piston and screw it into the
caliper, then fit whichever lip of the dust boot
was left free (see illustration).22Renew the slide pin gaiters and apply a
little anti-seize compound to the slide pins
when reassembling the caliper to the bracket.
The splash shield is retained by the rear hub
bolts. Proceed as described in Chapter 11 for
removal and refitting of the rear hub.
1Disconnect the battery negative lead.
2Depressurise the hydraulic system by
pumping the brake pedal at least 20 times, or
until it becomes hard.
3Remove the under-dash trim on the driver’s
side.
4Remove the spring clip which secures the
hydraulic unit pushrod to the brake pedal. Also
remove the clip from the brake pedal shaft
(see illustration).
5Withdraw the brake pedal shaft towards the
left of the vehicle - through the clutch pedal,
when applicable - until the brake pedal is free.
6Remove the pedal, noting the fitted
sequence of bushes, spacers and washers.
7Refit by reversing the removal operations.
Check the correct functioning of the stop-light
and (if applicable) cruise control switches
before refitting the trim. See Chapter 13.1Disconnect the battery negative lead.
2Depressurise the hydraulic system by
pumping the brake pedal at least 20 times, or
until it becomes hard.
3Disconnect the six multi-plugs from the
hydraulic unit. They are all different, so there is
no need to label them. When a plug has a
spring clip retainer, lift the clip before pulling
out the plug. To release the pump plug, pull
back the rubber boot and the plug sleeve (see
illustrations).
4Unbolt the earth strap from the unit (see
illustration).
5Make arrangements to catch spilt hydraulic
15Hydraulic unit - removal and
refitting
14Brake pedal - removal and
refitting
13Rear disc splash shield -
removal and refitting
10•8Braking system
12.21 Dust boot fitted to caliper and piston
15.3d Disconnecting the pressure switch
multi-plug15.3e Disconnecting the pump motor plug15.4 Earth strap (arrowed) bolted to
hydraulic unit
14.4 Pushrod spring clip (A) and brake
pedal shaft clip (B)
15.3a Disconnect the valve block multi-
plug. Lift the clip and pull off the plug15.3b Disconnecting a fluid level sensor
plug15.3c Disconnecting the main valve plug
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