"Leaky Sunroofs"

I've seen loads of BX's where owners complain that the sunroof leaks, in fact some people have even taped up the sunroof from the outside in an effort to stop it leaking! What they don't seem to realise is that the sunroof seal is designed to allow water past, the seal could not keep out the water alone or the roof would not open.Instead, water is collected in a metal tray under the glass htach, where upon it should rapidly drain away using 4 drain tubes, each located at the corner of the drip tray.
Any leaks entering the car interior are invariably caused by the blockage of these drain tubes.

Heres how to check for leaks and fix the problem.

1) Remove both rear light clusters. If you look carefully you will see a whiteish plastic drain tube in the rear panel at either side. Very very carefully pull both tubes through the access holes in the rear panel. (be carefull, they may be brittle), I used some forceps to gently pull the tubes through.

2) Wind back the sunroof to its full extent. Using a watering can, pour water around the edges of the roof so that the drain tray fills up. At this point, water should begin to drain away, if not, the tubes are blocked.

3) Assuming that you do not have access to a compressor with air spray, you can (with a strong stomach and good set of lungs!!) suck on both the drain tubes that you accessed behind the rear lamps.(spit quickly!!!!) Water should now start to flow out. Then blow throgh the tubes the other direction. If you have access to compressor with air spray attachment, squirt air up both tubes from the back of the car.

4) The front tubes run down the windscreen pillars and terminate somewhere under the inner wing, I've never quite found out where. The only way to unblock them is to very carefully use compressed air in both front corners of the sunroof drip tray. Poking wire down them is not to be recommended incase the wire snags and holes the tube. Mig welding wire, with one end bent over back on itself could be used with extreme caution if all else fails!