Xantia sump plug size

[Tom]

Whats the size on these plugs, is it 21mm or do you need some stupid service tool to poke in the hole in the middle?

My DT has been fitted with a 1.9 Xantia engine, the sumps got two plugs one at the front (high) and one at the rear of the sump.

Is there a trick to getting all the oil out, cos it looks like a fair amount will stay at the lower front of the sump.

Make sure you take the filler cap out the top of the engine and run it for 5mins before to warm the oil up.