Great advice, thank you for the video and demonstration. I have an Audi A6 2019 (C8) and this worked, though to take the sprinkler away from the hose I had the addition of unclipping a cable attached to it, nice and simple. If a bit of play with a tool doesn't clear it, consider a very small piece of wire which is not too stiff to gently remove dirt within the nozzle heads - be careful not to damage the nozzles.
Nice one mate, very helpful and it worked for me. I had deep blockage so had to slowly pick it out with strong wire while soaking it in detergent. Saved me a lot of messing about trying to figure out how to remove them without damaging it
I have Audi q3 here. Washer pump turns on, nothing came out. After removing washer tank, it was full of mildew and boogers. Pump clogged. lines do spray when blowing air thru it bypassing pump. Good video though.