Welcome to forum . You should check first for any dampness in car interior .If o.k , could check pollen filter , especially if not been changed recently . This from Renault site ,explains where pollen filter is .
Re: Renault Megane 1 - Excessive Condensation
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Not sure about the Laguna but mine is the Laguna II and the filter is behind the glove box.
If you open the glove box you will see 1 screw securing interior. Once the screw has been removed look for four cut outs in the glove box bottom right and left and top left and right. these can be prised up with a screw driver and the trim removed, behind there you will see the pollen filter casing.
The filter gradually clogs up over time so that is why you could have had no problem last year.
There are other possible causes but you could check these first and get back to forum if still having probs . Hope this helps you .
Posted Jul 1, 2010 (14 years ago)