The '91 300E (125K) I recently purchased had a head gasket replaced and the head overhauled before I bought it.

I just checked the recovery tank and it' milky and light brown. Is it common to have to flush the system several times to get this to go away, or do I need to take it back to the guy who repaired it?

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Mr. BILL

91 300E 120K
90 300SE 275K (sold)
92 BMW 525iM 120K
90 BMW 525iA 175K
85 300D 175K (sold)
84 300SD 245K (sold)

if he did it. You should have some warranty on the job. Don't you?

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J.H.
'86 300E

Benzmac or MBDOC has posted that they have to flush out the cooling system repeatedly with a citric solution to get rid of all the traces of oil.

I think it was Donnie that made the post. He said it's real hard to get rid of all of the residue.

Hopefully, that's your problem...

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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".

I think suginami is right. I called the gut who did the work and also my tech. Both said it's common to have to do repeated flushes to get the last trace of oil out.

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Mr. BILL

91 300E 120K
90 300SE 275K (sold)
92 BMW 525iM 120K
90 BMW 525iA 175K
85 300D 175K (sold)
84 300SD 245K (sold)