Sounds like it is running pretty normal to me. You have a 250000 mile, IDI Diesel that had 143hp when new. It is a fuel miser, not a street racer.

I suppose you could check the throttle linkages. Gut the cat. Check the IP timing as stated also. Verify the EGR is closed.

If you are unhappy with its performance, you may as well skip its purchase.

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I'm not a doctor, but I'll have a look.

'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

Six others from BMW, GM, and Ford.

Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]