Hi All
Recently purchased a 2003 Scudo 1.9 and it has a problem with diesel knock and white smoke.
In general it drives ok but when i accelerate hard i get quite a bit white smoke and diesel knock, once i back off everything goes back to normal. If i ease the speed up to 70mph it's fine but if i give it more acceleration the issue happens again.
What should i be looking at first ?

TIA

Know your smoke colours:
Black - too much fuel
Blue - Burning oil
White - Coolant or water

Are the coolant levels dropping with no obvious leaks? If so, you may have a gasket failure or some other way that water/coolant is finding it's way into the engine. If not, then moisture is building up in there some other way.

White smoke from a diesel can be unburnt diesel fuel fumes