I'd really appreciate some help here folks:

I have a 2009 V50 1.6D Drive, milage 10k

The car has been in the workshop for a 11 days in total.

It's had it's fly wheel replaced, to try and resolve the 'engine run on' after she is switched off.

The dealer is trying to pawn the engine knocking, which is a loud judder, as totally normal.

I have tested two V50 else where and the engines did not run on afterwards as this one does.

She doesn't drive as well as other V50's either.

An inspection from a local mechanic result in a pretty stunned response when he heard the engine knocking.

Has anyone advice, or experience of this, all research points to this as abnormal...Help!