[bb_zetec]

Two Cars ive had water leaks in were the below causes:

FG Ute - Windscreen. It was replaced and there was a small pocket that had not been filled with the urethane and caused a leak. It only happened in heavy rain and took a while to build up inside under the carpet. The leak was only visible after i removed the entire seats/carpet and centre console and hosed around the windscreen and watched it to see where it dribbled down from.

With the carpet inside id never see it.

Got the windscreen removed and resealed and it fixed it.

PH Courier - A wiring grommet was torn in the firewall and the water would wick its way down the wiring loom and then into the interior under the carpet. Bit of silastic fixed that.

My suggestion would be to remove the seats and carpet and put the seats back in so you can still use the car.

The carpet will be mouldy underneath now so its good to take it out and give it a good airing. Some of the insulation will be so wet it will have to be thrown away. Its burlap type crap that soaks up and never dries.

You can always get the windscreen removed and resealed...although there is a risk the screen will get broken in the process. Try the hose around the windscreen after the carpet is removed and see how you go.

Put the hose on low and dribble it around the entire edge...it might take a while for the leak to show up.