How do you change the indicator stalk on corsa B?

To change the indicator stalk on a Corsa B, first disconnect the car battery to ensure safety. Then, remove the steering wheel by loosening the central nut and using a steering wheel puller if necessary. Take off the plastic cowling around the steering column, then unclip and disconnect the wiring harness for the indicator stalk. Finally, unscrew the stalk from its mounting and replace it with the new one, reassembling in reverse order.