Strange, there Is no reference to a pollution filter neither in mine or the US version of the owners manual. The only filter that may fit the bill is the cabin pollen filter and I've not ever seen a display for the replacement of the pollen filter. Checking the owners manual also doesn't list a screen shot of a pollen filter replacement warning screen. Replacement is on time as noted in the maintenance or service manual. I just had mine replaced at the first year service.