Sounds like someone needed a payday.
All of these DI diesels use taper wedge compression rings which means that they will show low compression on cranking test.
From my own experience of dewan bmw, they dont have even a single bmw trained mechanic, the only person holding a cert is the SM who sits in an ac office all day long. Dewan also have a habit of hiring morons in their corporate office side too.
But anyway, the old wives tale of “diesel ki kwaltee” in Pakistan is nothing more than hearsay. The mechanics tearing down engines for overhaul because “diesel ki kwaltee, bohot carbon etc” are basically milking the client for all his worth as the labour cost will make a very nice payout.
A very simple acid test of these mechanics by asking to exhaustively and visually prove the failure will quickly filter out the crooks, in dewanay case would be 100% of the staff including corporate officers.
