Note: A balljoint separator toot will be required for this operation and a new driveshaft retaining nut wilt be required for refitting.

Removal

1 Firmly apply the handbrake, then jack up the front of the car and support it securely on axle stands. Remove the appropriate front roadwheel.
2 Using a hammer and chisel or similar tool, tap up the staking securing the driveshaft retaining nut in position.
3 The front wheel hub of Fiat Punto must be held stationary in order to loosen the driveshaft nut. Ideally, the hub should be held by a suitable tool bolted into place using two of the roadwheel bolts. Alternatively, have an assistant firmly apply the foot brake to prevent the hub from rotating. Using a socket and extension bar, slacken and remove the driveshaft retaining nut.
Warning: The nut is extremely tight. Discard the nut-a new one must be used on refitting.
4 Release the brake caliper hydraulic hose from the bracket at the base of the suspension strut.
5 Undo the two bolts securing the brake caliper mounting bracket to the swivel hub of Fiat Punto. Withdraw the caliper and mounting bracket assembly, complete with brake pads, off the disc (see illustrations). Suspend the caliper from a convenient place under the wheel arch using string or a cable tie. Do not allow the caliper to hang unsupported from the brake hydraulic hose.



Undo the brake caliper mounting bracket retaining bolts (arrowed)...



... and withdraw the caliper and mounting bracket assembly off the disc


6 If the swivel hub of Fiat Punto is being removed for renewal of the bearing, mark the relationship between the brake disc and the hub with chalk or a marker pen, to allow correct refitting. Slacken and remove the disc locating studs, then remove the disc from the wheel hub.
7 On models with ABS, release the wheel speed sensor cable from the brackets at the base of the suspension strut. Undo the sensor retaining bolt, withdraw the sensor from the swivel hub and suspend ft away from the working area, to avoid the possibility of damage (see illustrations).



On models with ABS, release the wheel speed sensor cable from the suspension strut brackets ...



... then undo the retaining bolt (arrowed) and remove the sensor


8 Unscrew the nut securing the track rod end to the swivel hub. Release the track rod end tapered shank using a balljoint separator tool.
9 Unscrew the two nuts and remove the bolts securing the top of the swivel hub of Fiat Punto to the base of the suspension strut (see illustrations).



Unscrew the two nuts ...



... and remove the bolts securing the swivel hub to the suspension strut


10 Pull the swivel hub outwards at the top to release the driveshaft outer constant velocity joint from the wheel hub. If necessary, the joint can be tapped free using a soft-faced mallet.
11 Slacken and remove the nut, then withdraw the suspension lower arm balljoint clamp bolt from the swivel hub (see illustrations).



Slacken and remove the retaining nut...



... then withdraw the suspension lower arm balljoint clamp bolt from the swivel hub


12 Tap a small chisel into the split on the swivel hub to spread the hub slightly, then lift the swivel hub assembly up and off the balljoint shank.

Refitting

13 Locate the swivel hub of Fiat Punto over the suspension lower arm balljoint, pushing it fully into engagement with the balljoint shank. Refit the clamp bolt and secure with the nut tightened to the specified torque.
14 Engage the outer CV joint into the wheel hub, then pivot the top of the swivel hub back towards the car. Screw on the new driveshaft retaining nut, but do not tighten it at this stage.
15 Refit the suspension strut-to-swivel hub bolts, screw on the two nuts and tighten them to the specified torque.
16 Engage the track rod end with the swivel hub, refit the retaining nut and tighten the nut to the specified torque.
17 On models with ABS, ensure that the mating faces of the wheel speed sensor and the swivel hub are clean, and apply a smear of high melting point brake grease to the sensor location in the swivel hub. Ensure that the end face of the sensor is clean, then locate it in position and secure with the retaining bolt. Refit the sensor cable to the brackets on the suspension strut.
18 If previously removed, locate the brake disc on the hub so that the roadwheel bolt and locating stud holes are all correctly lined up; use the alignment marks made during removal. Refit the locating studs and tighten them securely.
19 Refit the brake caliper and mounting bracket assembly to the swivel hub. Coat the threads of the mounting bolts with thread locking compound, then tighten them to the specified torque.
20 Refit the brake caliper hydraulic hose to the bracket at the base of the suspension strut.
21 Using the method employed on removal to prevent rotation of the hub, tighten the driveshaft retaining nut to the specified torque. Secure the nut by tapping the staking into the two grooves in the end of the CV joint using a hammer and chisel.
22 Refit the roadwheel, and lower the car to the ground. Depress the Fiat Punto brake pedal several times to bring the brake pads into contact with the disc.
23 It is advisable to have the front wheel toe setting checked at the earliest opportunity.