A/C air volume low

[Fiddlefoot]

[:(]Hello, Can anyone tell if there is an air filter in the A/C system anywhere on a W123? I'm getting low volume of air movement with the fan on high. All the gates seem to be fine so I thought I might have a clogged filter, but can't find one.

[teky]

http://uk.msnusers.com/autodatabase/aircon.msnw?action=get_message&mview=0&ID_Message= 637&LastModified=4675476459058061556

http://uk.msnusers.com/autodatabase/aircon.msnw