My electric aerial does not retract completely. It leaves about 4cm sticking out. It also leaks some water into the car :(

Is the aerial serviceable? Or is it best to replace it under these circumstances?

It might just be the mast that needs replacement. I would take it out take it apart and see what is going on inside. Replacement masts can be had from Eurocarparts for £10.00.

Simon.

Have you ever done it? Is the long plastic toothed strip removable from the mast, or does the new mast one come with a new strip in it?

I've had to do a couple in my time, yes the new mast comes with the plastic strip...

Simon.

And, just to check, there definitely is not meant to be a drain pipe going from the point on the bottom of the aerial assembly to outside the car?

There is a drain pipe but as far asI am aware it just drains into the bottom of the rear wing which I guess has it's own drain hole.

Simon.

Aha! That may be my only problem then... I don't have a drain pipe. Can you describe it to me (i.e. length, and where the other end is) so that I can replace it? :)

Thanks!

(Note to self... look in bottom of rear wing in case pipe is down there somewhere :) )

Update: Yay...Found it! Thanks for the help!