XM rainwater leak?

Rainwater is finding its way into the ventilation fan situated in the passenger footwell.
Is this a known issue?
I am guessing that rainwater is being sucked from the rainwater drainage
channel below the windscreen motors. I have cleaned the channel and the drainage holes seem clear.
I also think that the water collects in the air ducts supplying the heat exchanger. When I corner sharply the water flows along the airduct and hits the fan blades and makes a 'swishing' noise.
Are there any modifications I can make to stop this happening.
Add pictures here
‚úĖ
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
Rudge wrote:

are you /sure/ it's rainwater ?

are you sure the heat exchanger isn't fubar ? happens when the antifreeze either hasn't been changed regularly or the wrong antifreeze has been used, setting up some sort of electrolysis which corrodes the innards of the heat exchanger*
you must always use the red OEM stuff, apparently.
(source - local independent citroen specialist citing distant past warranty claims and refusal to guarantee my coolant exchange / heat exchenger when I supplied my own cheapo antifreeze.)
Add pictures here
‚úĖ
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
Rudge wrote:

Don't know about the XM, but on the Xantia this can happen when the plastic moulding along the bottom of the windscreen (which hides the wiper motor and linkage) comes unstuck.
On the Xantia, the bottom edge of the windscreen is directly over the heater air intake. If the moulding comes away from the glass, water can run down behind it and drip into the air intake, eventually appearing in the passenger foot well.
Might be worth checking.....
Alan
--
Warning! - This newsgroup may contain nuts....
Mail sent to this address might get read....Eventually
  Click to see the full signature.
Add pictures here
‚úĖ
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.