I bought this car about 2 mos. ago. Took it to my local shop and had them look it over. Replaced serpentine, glow plugs, changed oil and air filter and I was on my way. I noticed a noise between 2000 & 2500 RPM's that sounded like a slapping of something, and it accelerated/decelerated with RPM increase/decrease. So back to the shop I went... it was also burning oil... so I'm thinking this is indeed a lemon like everyone says the w140/603.971's are...

Had them check injectors. the "tip" was bad on #1 cylinder, so I had them all replaced. It ran better but still was not right, burning oil still. So they have now pulled the head, are having it fluxed and machined, new valve guides, etc. being installed. The #1 cylinder was the source of the burning oil. Seems the head gasket was blown out and allowing oil into the cylinder. So new gasket, machined head new valve guides and they think it'll be good to go with no oil issues, etc. Turbo checked out fine, not oil seal issues there....

Does this sound like something experience before by others? Would a bad injector cause the un-atomized fuel to compress and blow the head gasket out somewhere, i.e. to allow oil passage into the top end?

Thanks,
JMH