Hi I'm a Newbie to citroens I presently have a 1997 "R"1.9TDi Xantia estate "Temptation" 97.000 miles VERY PLEASED with it have had to change all 4 corners spheres for what I can truly call a fantastically smooth ride
I had a "Smell" when I put air/con or heater SOOoooo I checked out the pollen filter which was probably the original although I have citroen services up to 58.000 I hoovered out the opening and before I put in the new pollen filter I pinched the wifes pot pourri Oil Vanilla sprinkled this has been 2 months on the filter and hey presto smell has disappeared as the access is so easy I would not mind doing this every few months
Oh the wifes STILL wondering where most of her Oil went to and asked duz it evaporate once opened and I admit I said YES IT DUZ DARLING
That woz my undoing YEAH the Darling bit
Hope this works for you too