Originally Posted by Broken1
Now....with this common rail thing? Is that how the fuel is sent to the chambers? What about direct injection? (Does the BMW use direct injection in the diesels)?
Yes, BMW has been using Direct injction in diesel cars since about 1998. Thats why the piston is shaped so funnely in the middle, to properly distribute the fuel.
What it means is the fuel is injected directly into the cylinder, and not into the air intake manfold just before the valves like the older engines do.
Here is a bit on Common rail technology http://www.swedespeed.com/news/publi...inter_272.html
Your car has 2nd Generation common rail as far as I know