OK on that. Oh yes, is the impeller grinding against the housing on your turbo? If so you need a new housing, or another turbo. There was a thread on this some time back. If your just using excessive oil then a seal kit might be all you need. Brian, the moderator knows a place to get them. M&M Distr?
DDH

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'95 E320 Wagon my favorite road car. '99 E300D wolf in sheeps body, '87 300D Sportline suspension, '79 300TD w/ 617.952 engine at 367,750 and counting!