I would contact a dealer (preferably one that owner has dealt with ) or MBUSA. Car is no doubt out of warranty, but MB at times will offer help on a goodwill basis. If engine is totally wrecked, they may be able to offer a factory rebuilt engine.

Anything emission related should still be covered (to 8 yrs?). And that can include things like the ECU which if it fails can result in mechanical problems.

If car was not maintained by a dealer, it might be of interest to know what oil was used. The oil specified for the Bluetec is a low-ash oil. If an owner or his garage has not used the correct oil, then that could be part of the problem. You can't just put any old diesel oil into the Bluetecs. High temperatures in the emission system can increase sludge formation which in turn can cause engine failure. I believe it must be to MB-Approval 229.51 or 229.52.

I had a Bluetec, but traded it when warranty ended. These newer MB Bluetec diesels are just too complex.

__________________
Graham
85 300D,72 350SL, 98 E320, Outback 2.5