This question about the pollen filter was very useful.
I today have had to change the pollen filter under the glove compartment and I didn't even know there was a filter there. My Micra doesn't have Air con and it does have a filter fitted. So, if like me you notice that your heater/air vents inside the car are not blowing and not making much noise, then there's a big chance that the pollen filter is clogged and needs replacing and yes you do have to cut the panel behind the glove compartment to be able to remove the filter, just as Mark Smith stated in his post to this question.
I found the cost of the filter about £13.00, what a difference to the blowing power from my vents though.
YES...a big Thanks to Mark Smith for your info.
Andree
February 2009