Removal

1 Firmly apply the handbrake, then jack up the front of the Fiat Punto car and support it securely on axle stands.
2 Remove both front wheels, then remove the left-hand wheel arch liner main and centre panels.
3 Remove the air cleaner assembly.
4 Remove the battery, battery tray and starter motor of Fiat Punto.
5 Drain the automatic transmission fluid.
6 Disconnect the main wiring harness connector at the top of the transmission, then unscrew the bolt and disconnect the transmission earth lead at the front of the unit.
7 Extract the retaining clip and release the selector cable end fitting from the starter inhibitor/reversing light switch. Undo the two bolts securing the selector cable support bracket to the transmission and move the bracket and cable to one side.
8 Remove the clips and disconnect the transmission fluid cooler hoses at their transmission connections of Fiat Punto.
9 Remove the exhaust manifold.
10 Undo the bolts securing the engine management ECU mounting bracket to the throttle body and move the ECU to one side.
11 Undo the bolts and remove the support brace linking the transmission to the cylinder block.
12 Unbolt and remove the cover plate from the base of the transmission bellhousing.
13 Disconnect the wiring from the vehicle speed sensor located on the top of the transmission differential housing.
14 Unscrew the nuts retaining the track rod ends on the swivel hubs and use a balljoint separator tool to disconnect them.
15 Unscrew the two bolts securing the right-hand swivel hub assembly to the front suspension strut, then move the hub assembly outwards.
16 Remove the retaining clip securing the right-hand driveshaft inner CV joint gaiter to the joint body. Pull the driveshaft and spider out of the joint body and move the driveshaft clear of the Fiat Punto engine/transmission. Suitably cover the joint body and the driveshaft spider to prevent the escape of grease.
17 Undo the two bolts securing the left-hand brake caliper mounting bracket to the swivel hub. Slide the caliper and mounting bracket off the brake disc and suitably support it clear of the work area.
18 On models equipped with ABS, undo the retaining bolt securing the left-hand wheel speed sensor to the swivel hub. Withdraw the sensor from the swivel hub and position it clear of the work area.
19 Unscrew the two bolts securing the left-hand swivel hub assembly to the front suspension strut, and separate the hub assembly from the strut.
20 Slacken and remove the nut and clamp bolt then lift the left-hand swivel hub off the suspension lower arm balljoint.
21 Remove the retaining clip securing the left-hand driveshaft inner CV joint gaiter to the joint body. Pull the driveshaft and spider out of the joint body and remove the driveshaft and swivel hub assembly from the Fiat Punto car. Suitably cover the joint body and the driveshaft spider to prevent the escape of grease.
22 Using a socket on the crankshaft sprocket centre bolt, turn the crankshaft in the normal direction of rotation until one of the four torque converter retaining bolts is accessible through the opening at the base of the transmission bellhousing (see illustration). Undo the first retaining bolt, then turn the crankshaft as necessary and undo the remaining three bolts as they become accessible.



Torque converter retaining bolt (arrowed) accessible through the bellhousing opening


23 Unscrew the bolts and nuts securing the rear engine mounting to the subframe and transmission, and withdraw the mounting.
24 Support the weight of the engine using a hoist attached to home-made brackets secured to suitable positions at the left-hand end of the Fiat Punto engine.
25 Support the weight of the transmission on a trolley jack then unscrew the engine-to-transmission retaining bolts. Note the correct fitted positions of each bolt (and the relevant brackets) to aid refitting. Move aside all wiring and support brackets secured by the retaining bolts.
26 Unscrew the bolts securing the left-hand engine/transmission mounting to the body then unscrew the bolts from the transmission and remove the mounting.
27 Make sure that the torque converter is pushed fully onto the transmission shaft, then carefully withdraw the transmission from the engine. If they are loose, remove the locating dowels from the engine or transmission.
28 Lower the trolley jack and remove the transmission from under the Fiat Punto car.
Warning: Keep the transmission well supported to ensure that it remains steady on the jack head.
29 With the transmission removed, secure the torque converter in position by bolting a length of metal bar to one of the bellhousing flange holes.

Refitting

30 Refitting is a reversal of the removal procedure, bearing in mind the following points.
a) Tighten all bolts to the specified torque.
b) Tighten the torque converter retaining bolts to the Stage 7 torque setting, then turn the crankshaft through one complete revolution and tighten the bolts to the Stage 2 torque setting.
c) Use new clips to secure the driveshaft gaiters to their respective joint bodies.
d) Refill the transmission with the specified type and quantity of fluid.