near side indicator repeater

[astonman]

Still dont know how to fix this leaky item

[Tempy]

The manual shows that the indicator can be removed by pulling it away from the wing panel. The plastic cover then comes away from the light assembly by rotating anti clockwise. You should be able to dry it out then, but I'm not sure how to stop it from filling up with water again. Vauxhall should be able to supply a replacement easily enough.
When I had my 'ro in for a respray, they discovered one of my side repeaters had been glued on, and damaged it taking it off. They got be a replacement from another branch and left the old one in the car, so they must have already had them in stock. It looks like a very cheap item to replace.