Welcome to the Forum.

Using the search feature is the best way to get answers to the questions you have. It is very likely that someone has been there and done that.

In this spirit I used your words: head gasket replacement

and 190 and got this head gasket replacement

Hope this helps,

Haasman

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'03 E320 Wagon-Sold
'95 E320 Wagon-Went to Ex
'93 190E 2.6-Wrecked
'91 300E-Went to Ex
'65 911 Coupe (#302580)