How to service the air cleaner on the 200 turbo? on 1990 Audi 200

The air cleaner is non assesable. What would have to be removed to change the air cleaner?

Asked by for the 1990 Audi 200
After buying a 1989 Audi 200 Turbo on ebay I drove it home and did the easy maintenance, like Oil change and air cleaner element. Or so I thaught. You are right, that air cleaner is a real pain. After removing the obvious parts around it I found that taking out the right headlight assembly gave me enough access to get to the filter.
That sounds crazy, but worked.
By the way, in the Bentley repair manual it just says: "We recommend that you have the air cleaner serviced by your Audi Dealer..."