Remember it has a vacuum pump, completely different beast than a gasser. If there is a vacuum leak then it'd just keep on running like nothing was wrong.

It is leaking where the IP meets the block? That gasket can be a pain to change, if you're lucky it is just a little to loose.

__________________
Jeff M.
Mercedes W123 DIY pages are now located here.
1983 / 1984 300D Sold
2000 CLK430 Cabriolet ~58k Sold
2005 Avalanche 4x4 ~66k