I have a 1981 240D and went to replace the air filter.

When I took off the lid, the gasket in the lid fell apart.

Anyway, I just put the lid back on and started driving.

While putting the lid back on, it seems that when the lid is screwed down,and the clamps are down, that the filter is sealed against the lid. I don't think any unfiltered air is getting into the engine.

Is my thinking, correct? If not, then where to find the gasket that goes in the lid?

Bob
1981 240D