Removal

1 Remove the airbag unit from the steering wheel of Fiat Punto.
2 Turn the steering wheel to its centre position, so that the roadwheels are pointing straight-ahead,
3 Lift off the protective seal over the steering wheel retaining nut (see illustration).



Lift off the protective seal over the steering wheel retaining nut


4 Slacken and remove the Fiat Punto steering wheel retaining nut. Discard the nut as a new item must used on refitting.
5 Make alignment marks between the steering wheel and the end of the steering column shaft, to aid correct refitting later.
6 Disconnect the horn switch wiring connector and lift the steering wheel off the column splines. If it is tight, twist it from side-to-side, whilst pulling upwards to release it from the shaft splines (see illustrations). Once the wheel is free, feed the airbag and horn switch wiring through the aperture in the steering wheel and remove the wheel from the car.



Disconnect the horn switch wiring connector (arrowed)...



... and withdraw the steering wheel from the column splines


7 Check that the centre position indicator window on the outer moving portion of the airbag clock spring is centred over the red indicator tab on the fixed portion (see illustration). It is advisable to secure the moving and fixed portions of the clock spring together using tape to prevent rotation with the Fiat Punto steering wheel removed.



Check that the clock spring centre position indicator window (arrowed) is centred over the red indicator tab


Refitting

8 Check that the airbag clock spring is still centered correctly. Remove the tape used to secure the clock spring moving and fixed portions together.
9 Feed the airbag and horn switch wiring through the steering wheel and locate the wheel on the column splines. Ensure that the marks made on the steering wheel and column shaft are aligned.
10 Screw on a new steering wheel retaining nut and tighten the nut to the specified torque. Refit the protective seal over the retaining nut.
11 Reconnect the horn switch wiring connector.
12 Refit the airbag unit.