Can someone confirm the exact location of the infamous O-Ring on timing cover? The only o-ring I see is between the fan bracket and timing cover. The o-ring is in the same bolt hole that the "y-bracket" attaches to with sealant on both sides. Can anyone confirm? Also, Fastlane sells an o-ring between the timing cover and crankcase(see attached link below). But I don't see any o-rings between them. I want to get this right since I'm trying to eliminate all oil leaks on the front end. Thanks for any help.
http://catalog.eautopartscatalog.com/mercedesshop/sophio/wizard.jsp?partner=mercedesshop&clientid=catalog.mercedesshop&baseurl=http://catalog.peachparts.com/&cookieid=1O40VKYKM1O617BN7M&year=1991&make=MB&model=190-E-005&category=All&part=Timing+Cover+O-Ring