repacing a clock spring, Alfa 147 (2001)
Actually, this is a very simple job.
1. Remove the airbag by undoing the three 5mm allen key bolts at the back. remember to disconnect the battery at least 15 minutes earlier (probably so it doesn't pop)
2. Unplug the airbag connector. Place it on the passenger seat. (The airbag, not the connector!)
3. Unplug all four connectors on the U-shaped unit. Pull the unit towards you. It should simply pull out.
4. Disconnect the plug on the side and place the U-shaped unit next to the airbag unit on the passenger seat.
5. Pull the round plastic thingy in the centre towards you with a pair of pliers. It only covers the nut and should come off fairly easily.
6. Using a 24mm socket with an extension arm, first release the centre nut, then loosen the steering wheel. After this remove both the nut and the steering wheel and place next to the u-shaped unit and the airbag on the passenger seat.
7. Remember to carefully pull the wires from the clock spring through the steering wheel.
8. Using a star screwdriver, remove the three screws holding the clock spring and put the screws somewhere safe, like the passenger seat. Preferable use a magnetic screwdriver. You'll curse if they fall behind the covers.
9. Tilt the clock spring towards you and down, and unplug the wires at the centre back bottom.
10. Try to fit the new clock spring. After a day of trying, go back to the breakers yard and get the right one.(Be careful! There are more than one type available. Preferably take yours out and compare at the breakers yard before you pay!!!!!)
11. Refit everything in exactly the reverse order.
12. Check if everything works, and like in my case, kick yourself since the clock spring was not the faulty item to start off with.
I hope that helps you. Alfa's are not that difficult to work on. Diagnosing the problem is three quarters of the battle.