Passenger foot well wet.

[Forrester123]

I have an '07 C5 estate which has developed a rainwater leak into the passenger footwell.
I know the problem is difficult to solve so any pointers of where to look, would be welcome.

[GiveMeABreak]

There are several places to start:

1) On the passenger side door, underneath the door itself there should be one or more drain holes that evacuate the water that gets accumulated from the rain water that enters the weather seals or when the windows are raised and lowered in rainy conditions. If these holes get blocked up it can lead to water filling up and eventually seeping out into the cabin floor. So check these are clear.

2) The most common is the scuttle drains that can become blocked with leaves and other gunk over time. These block up the right and left channels that evacuate the water down and through a flap in the wheel arch linings. These should be checked and cleared of debris to allow the water to drain.

[Forrester123]

Finally got round to trying to find problem after all the wet weather.
The door drains were clear & the scuttle drains were half blocked, but the air con. drain was blocked with leaves. Cleared all & wait for the next down pour to see if problem solved.

[GiveMeABreak]

Well done.