I seem to recall a couple of bolts on that unit, if it's the same style as on my 300SE. I think 10mm. Could be wrong.

Anyway, replace the O-ring that seals the unit to the oil pan, and there's also another o-ring that goes on the stem where the plug attaches.

I took the opportunity to clean out the unit so that the float operates freely.

__________________
-tp


1990 300SE "Corinne"- 145k daily driver - street modified differential - PARTING OUT OR SELLING SOON - PORTLAND OR. AREA - PM ME FOR DETAILS
1988 560SEL "Gunther"- 190K passes anything except a gas station
1997 S420 - 265k just bought it with a rebuilt trans. Lovely condition