Unfortunately, I'm experiencing an urgent problem with the ribbed belt on my Audi 100 2.5 TDI, AAT engine.
I lost it!

Of course, I then bought a new one and would like to reattach it. Unfortunately, I'm not clear on how it needs to be placed between the rollers! That is, between which pulleys it needs to be pulled inwards onto its drive shaft.

Does anyone have a picture or a diagram? }
Thank you very much, Michael.