When troubleshooting my AC last year, I found that my 2003 pre-facelift car had the auxiliary fan powered by a different fuse than Bentley and Newtis said. The wiring diagrams said it was in one place for pre-facelift, and a different place for post-facelift cars, and my fan was powered by the post-facelift fuse. I have no other examples of finding bad documentation but that is a big red flag for me that there are probably more examples.

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2003 3.0 5MT Topasblau
Purchased in 2016 and sold in 2024
2012 35d Platingrau