It had a distributor injection pump.

Nice, are these your pictures or did you just find them somewhere? So essentially this engine was like the VE TDI engine, except it probably had 4 valves per cylinder instead of 2 and a timing chain of course.

__________________
2004 VW Jetta TDI (manual)

Past MB's: '96 E300D, '83 240D, '82 300D, '87 300D, '87 420SEL

Yeah, it's a pretty engine

Attached Thumbnails

 

I found the pictures here: http://www.cookbros.com/mbz.html

It's basically a direct injection 5-cylinder OM602. It was bored and stroked to 2.9L The same thing they did to the 3.5L OM603. (3.5/6= 0.583L per cylinder. 2.9/5=0.58L per cylinder.)