I just got an 89 525i,Absolutely beautiful car,near perfect in and out.It needs a water pump.I have been searching forums,for installation procedure
but every one i find show my car to have a serpentine belt.It doesn't it has a few standard belts.
Just wondering if There is a write up about it that I missed here

thanks in advance

will post some pics tomorrow

 

You probably have an M20 engine go find the Bentley manual pdf it has what you are looking for.
or
hxxp://e30world.com/engine/BMW-E30-timing-belt-and-water-pump