My '85 300d is spitting oil back out the exhaust system, enough that I think there is a fair amount of oil now in the muffler. The tailpipe is oily and it leaves a residue on the ground if it sits still running for a few minutes.

This sounds to me like the turbo seals. I know that a certain supplier sells a DIY rebuild kit (probably also available elsewhere, have not checked). However, recently I was told not to use the kit, as while it works in terms of the seals, the turbo has to be "rebalanced" following the rebuild or it won't last very long.

I came into Mercedes from the Volvo world and had Volvo turbos and I know people there have been DIY-ing their own rebuilds for years. This is the first I have heard about the balancing issue in either 'world', Benz diesel or Volvo gas.

Would appreciate input. I probably have a spare turbo lying in my pile that I would rebuild and install. Otherwise the option is to go with one of the big rebuilders, like Majestic Turbos or the others, for an exchange. Much more expensive, especially with the Canadian dollar currently tanked vs. the US dollar, but less trouble and a warranty....

Also if anyone has experience with a Canadian supplier, would be interested.

Thoughts?

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Mac
2002 e320 4matic estate│1985 300d│1980 300td
Previous: 1979 & 1982 & 1983 300sd │ 1982 240d

“Let's take a drive into the middle of nowhere with a packet of Marlboro lights and talk about our lives.” ― Joseph Heller, Catch-22