anyone help with how to do maintenance on air bath cleaner>? how to clean and replace?... also how often should this be done/.? thanks in advance!

I think yours is like my 240d...

I clean the screen/mesh filter with diesel. Then I pour a little engine oil over it. Next I clean the housing. Fill it up with engine oil. I believe there is a word at the bottom of the housing which mean 'max fill' or something like that.

I once a year with oil change. No idea on spec from Mercedes

__________________
Dave

1985 190D 2.2 auto--gone
1975 240D 4-speed--storage
1985 500SEL--daily driver
1985 300TD--bad rust, soon to part out...
1982 300SD--waiting on engine from RD
1984 190E--storage
1996 Dodge 2500 Cummins--daily driver