i have a fair knowledge of air con, but never on cars. a quick search on the internet produced this
If you have a stale and smelly Air Conditioning System in your FTO, This could help, I enquired about the problem at a company called Mobile Air (01453 887614) and they recommended using a A/C Baceria Spary.Part No. MBA91101 (approx ?5)
How you use it
Remove the fan motor of the Air Con system which is situated under the passenger glove box (footwell) this is held in place with 3 phillips screws and sqirt the spary upinside the duct about 6 times, losely replace the motor with 1 screw tightened and run for about 5 mins to circulate the spary around. remove the motor again and repeat the process. You can then tighten all the screws up. Job Done.
The bottle should last about 6-8 applications.
got this from
http://www.mitsubishi-fto.org/workshop/aircon/it is the conclusion i made cos the evapourator gets damp with condensation, and you fan blows warm air over it all the time. please try this first, it could save you a few quid.
