I just changed the tranny fliud and filter in my 97 e320, while I was under the crate turning the torque converter around to be drained, I noticed oil coming from around the head gasket. Can anyone shed some light on this, can the head bolts be retorqued, if so what is the torque specs and sequence? Or does the head gasket need replaced, can someone show me how to do it? Greasy garage in Ohio

If it's not coming from the valve cover gasket, then it is the head gasket. No you can't re-torque.

Yes, you will have to replace headgasket. It's obviously do able, but not a simple as many cars. Variable valve timing, etc.

Here's a link http://www.continentalimports.com/ser_ic100345.html

Steve

Thanks softconsult, any suggestions on where to but the gasket set?

Wouldn't a 97 have a M112 engines instead of the I6?

No, 1996 and 1997 E320's have the inline-6 M104 engine.

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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".

do the valve cover gasket set before you condemn the head gasket.

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David S Poole
European Performance
Dallas, TX
4696880422

"Fortune favors the prepared mind"
1987 Mercedes Benz 420SEL
1988 Mercedes Benz 300TE (With new evaporator)
2000 Mercedes Benz C280
http://www.w108.org/gallery/albums/A...1159.thumb.jpg

As an FYI, the head bolts are designed to stretch (elongate) upon torquing via specifications. Therefore, re-torquing serves to only stretch the bolts further, which does nothing to fuse the head and block any tighter.

Because of the stretching properties, you should NEVER re-use the head bolts. You will need a new set if you plan to tackle this job.

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2009 ML350 (106K) - Family vehicle
2001 CLK430 Cabriolet (80K) - Wife's car
2005 BMW 645CI (138K) - My daily driver
2016 Mustang (32K) - Daughter's car

If the bolts are within spec, it is perfectly acceptable to reuse them. Just measure their length to verify.

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2012 E350
2006 Callaway SC560

Buy the gasket set right here:

Click here for head gasket set

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2012 E350
2006 Callaway SC560

Very common on M104 engines,


On a good note, the valve guides/seats hold up very well. Just R&R the gasket and do valve seals while the heads are off(easy).

it should only need a headgasket-nothing else unlike M103's.

Michael

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Michael McGuire
83 300d
01 vw A4 TDI
66 Chevy Corsa
68 GMC V6 w/oD
86 300E

where can I but the head bolts and valve guides

Just click the Buy Parts button at the top of this page.

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2012 E350
2006 Callaway SC560

Thanks Sam, I am ordering the parts today and as soon as it gets warm up here, I'll get started.

Make sure it is the head gasket, not just the front timing cover. Look for the front of the engine on the passenger side. If the leak starts there, very good chance it is the timing cover. It will be an external leak (a couple drops per night) and it should not affect the performance or longevity.