Pollen Filter Position

I have been trying to replace the pollen filter in my 2001 MY S80 RHD. I was doing this because I seem to have relatively little heat coming into the car even when the aircon and fans are on full. The temp guage reads normal and it had a new thermostat last year. Anyway, I'm wondering whether the previous filter was put in the wrong slot. The various instructions on the web and in this forum seem to say that the filter should be placed in the 'rearmost slot' - my interpretation of this would be the slot nearest to the rear of the car. However the filter I removed was in the other slot, i.e. the one nearest to the front of the car, but obviously the rearmost one as you look at it! Can anyone give me a definative description of the slot that the filter should go in - is it the one nearest the engine or nearest the seats?

firstly is it the correct pollen filter ? Have you got air quality and Electronic climate control? if so then its the thick multi filter which goes in the slot towards the front of the car , if it is a basic heater with manual control it is the thin pollen filter and goes in the slot towards the rear of the car ...

Thanks, I have ECC so I have the correct filter, the thick carbon activated one according to the description on the box. I had thought that maybe if the filter was in the wrong slot it could have had something to do with the apparent lack of heat from the system, but I guess I'll have to look elsewhere for the solution to that problem. Many thanks.

Are you talking lack of temperature or lack of airflow ? Lack of heat could well be a faulty thermostat , is your temp gauge always in the normal mid position?

It seems you need to check that all the flaps are moving and that the push buttons actualy open and close the relavent floor , face vent and screen demist vents and that the temperature controls work , cold on cold and warmer on hot .. each side is independant . try taking the pollen filter out in case it is blocked ...

I put a new pollen filter in so I don't think that is the problem. I tried all the controls and things certainly change as you push the various buttons, though whether they change as much as they should is another matter. The temperature of the air goes up as you turn the temp knob up, the volume of air seems to change as you push the various buttons in and out where the picture of the person is, however with the temp set at 22 and the outside temp showing 5 it does not seem reasonable to be getting fairly cool air in. There is a lot of noise from the fans as you turn the temp up - a lot more than sounds reasonable for the amount of air coming out. Also I seem to have a major problem with misting up all round when its raining, as it has been doing a lot round here recently. The only way I can get the windscreen to clear is by using the windscreen override button! Do you think the aircon could need a recharge?

try putting a thermometer in the car by the gear lever and set to knobs to 22 C and see if the temperature reaches somewhere near on a longish trip ( 30 mins or so ) The best test is compare it to another car , misted windows are due to damp in the car from clothing , water under the carpets OR Recirculation flap stuck on recirculate ..

I have similiar lack of sufficient airflow in relation to the fan speed - though my temperature works fine.