dust filter
 

Isn't the dust/pollen filter accessed from under the dash in the passenger footwell? Like on a W202? Even if there is no Auto Cliamte Control it should still have the dust filter. Unless there are some variations. Oz delivered W210's all have dust filters.

Wow. The info I have states that all W210s were delivered with Automatic Climate Control, but Arvid's car obviously has the "manual" system. It looks to me like the dust filter has been installed in the position where the charcoal filter is on the cars with ACC. Maybe the filter for Arvid's car is a combination dust/charcoal filter like the one available for the W202.

Here's my guess:
The system appears essentially the same as a W202. As far as I know, the 202 just has a dust filter, not a combination filter. I may be wrong, I am trying to think of what the 202 dust filter looks like exactly, it may have some charcoal content, which would make it a combination filter. But at any rate it seems obvious that it doesn't have the seperate charcoal system because it doesn't have the seperate dust filters behind the glovebox. It also doesn't seem to have a switch to activate the charcoal system. It looks alot like a system some W202's have in the US, and also like the R170 system.
Gilly