Q7 Wire thickness in Erwin wiring diagram

Davus

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This question isnt specifically about the Q7.

Im reading a wiring diagram (current flow) document i downloaded from the Audi Erwin website (so its official), and im just trying to figure out how the wire thickness numbers on the document related to actual wire gauge. I certainly doesnt seem to be AWG, and i dont think its mm or mm2 (im happy to stand corrected).

Here is an example of what im talking about.

diagram_b1bb9c4ac6611405e120d2a4cfcf8b332f95b362.png

There are the wire thicknesses depcited here. .35, 1.5 and 2.5.

Is anybody able to help me understand what wire thickness these relate to?

Dave
 

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