I am getting ready to fix a leaking oil pan on my 190 2.3.
What is the best way to hold and seal the new gasket???
Thanks

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2009 CLS550 55,000
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2002 X5 165,000
1996 320S 155,000 (sold)
1991 190E 192,000 (sold)
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1984 300SD 160,000 (sold)

use this-

Permatex: Aviation Form-A-Gasket No. 3 Sealant - (Part#: 80019) ~ All Battery Sales and Service

glue the gasket to the pan. i'm not suggesting buy it from these people, i just found a good picture online. good luck, chuck.

you will have to scrape off later, probably after the glue (cement) has dried to a concrete-like substance.

I recommend simply coating the gasket with grease to hold it in place and seal any minor imperfections.