I have a 1993 E320, and had my head gasket replaced along with redoing the head, honing / checking for straightness, and new guides and seals.

I paid $1,400.

Depending on where in the country you live, I suspect an M104 head job would cost from $1,200 at an independent to about $2,000 at a dealer.

Where in the U.S. do you live? Maybe someone can recommend a good shop in your area.

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Paul S.

2001 E430, Bourdeaux Red, Oyster interior.
79,200 miles.

1973 280SE 4.5, 170,000 miles. 568 Signal Red, Black MB Tex. "The Red Baron".