307 water ingress

[Ednic]

Peugeot 307 SW with fixed panoramic roof.

Had some heavy rain last week when the car wasn't used. Next outing, with air con in use, found water coming from the footwell vents both sides with the RHS more affected than LHS, in fact it was soaking.

I haven't pulled the carpets yet to check the drain. I removed the grilles under the scuttle cover to check the drains there and found drain pipes coming from the windscreen pillars and going down the drain tubes . This confused me as I can't see anywhere on the roof area where they would start from.
I don't want to disturb anything unnecessarily and will start with the drain from the heater as I understand that anything from the pollen filter will also follow this track.
Any thoughts or advice welcome.

[mickthemaverick]

You may find this video will give you some ideas

[Ednic]

Thanks for that.
I'll explore further