Maybe a Torx head, if it's a very late car?
Citroen used them on the door locks for many years, then they appeared in other locations (such as the self-tappers for the plastic dash panel) near the end of production.
http://www.google.co.uk/search?q=torx+s ... 24&bih=653ken.
colinfoster wrote:
What size is the star type screw used to hold the top front door windows in, please.
Really want to remove it to spray the panel
many thanks
Colin