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Discussion Starter #1
Hello there,

I have a small issue with my Peugeot 307 SE

The issue is after each downpour, I get a fair amount of water in passenger side footwell, It seems to accumulate under the passenger side matting. I have since removed the passenger matt to hope it dries, but it soon appears when it rains again. I would like to fix this so the floor doesn't rot away.

They say that "the drain"- going from the windshield to the back of the front tire must be clogged somewhere and it is the most plausible cause, I have removed the front casing to find these clear.
It is NOT the A/C, it is NOT the door rubber, it is NOT the coolant. It only happens in the rain.

Also: it is NOT that plastic-rubbery thing at the base of the wiper- they say it should stick flat to the glass, but in my case it does not (it yawns out just less then a millimeter), and have been like that for two years without a problem.

Since I would hate to see my car turning to rust and as I cannot afford the body shop, does anyone know how and where to clean the clogging?? Or if there is drain pipe or whatever it is down there broken or dislodged, how to locate and fix it?

Thanks!!!
 

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Does it have a sun roof if so check the drain other than that check the door seal. Worst case sprinkle talk around the footwell and hose the car down and then look for tracks.

There have also been people who have had leaks from a poorly fitted replacement windscreen
 

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Discussion Starter #3
Does it have a sun roof if so check the drain other than that check the door seal. Worst case sprinkle talk around the footwell and hose the car down and then look for tracks.

There have also been people who have had leaks from a poorly fitted replacement windscreen
Hi, Sadly it doesn't have a sunroof in this model I have, thus adding to my confuzion.
 

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The BSI is located on the left side below the windscreen and if you get water on that it is really serious.
I would suggest laying a piece of kitchen roll across the top of it to see if it gets wet next time it rains.
If it does this indicates that the leak is probably from the windscreen. If not, it is lower down. Possably a door seal.
 

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The BSI is located on the left side below the windscreen and if you get water on that it is really serious.
I would suggest laying a piece of kitchen roll across the top of it to see if it gets wet next time it rains.
If it does this indicates that the leak is probably from the windscreen. If not, it is lower down. Possably a door seal.
Thanks, I will place some kitchen towel down to investigate.
 

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You need to place the kitchen towel on top of the BSI. If you fold out the fuse box in the dashboard the BSI is located behind it.
 

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I take it the drain holes in the sills are clear & allowing water to flow out?

If the sill fills up with water due to the sill drain holes being blocked, the water will then find its way in to the passenger compartment.

I have seen Peugeot vehicles of this era with blocked sill drains due to poorly applied factory undercoated.
 

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It would great to get further feedback from @JordanMilne on the kitchen towel experiment. I have a similar problem with my 307 1.6 Petrol. There is usually dampness around the insulation material on top of the BSI and one behind the engine. I have checked sill drain and it is not blocked.
 

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This might help:

 

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Discussion Starter #10
Its seems not to be water from above, I have now taken the panelling off the passenger door. As there was water coming from the bottom of the door panel. It has just rained and cannot see any water. Its all rather odd, but the carpet is still damp.
 

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Its seems not to be water from above, I have now taken the panelling off the passenger door. As there was water coming from the bottom of the door panel. It has just rained and cannot see any water. Its all rather odd, but the carpet is still damp.
That is good news really. LOL It can only be rain entering the doors and then the car through the paneling. This can only be because the drains in the bottom of the door are blocked. Try cleaning them out with a bit of stiff wire.
 

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Its seems not to be water from above, I have now taken the panelling off the passenger door. As there was water coming from the bottom of the door panel. It has just rained and cannot see any water. Its all rather odd, but the carpet is still damp.
I had a similar problem with my 307sw and it turned out to be a leak from the seal going into a little radiator hidden behind the lower centre console cover. Basically if you sit in the passenger seat of the car, the panel to remove would be to the right of your right foot ankle bone. Behind is hidden a small radiator and seals are prone to leaking.
 
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