Have inspected the footwell today. There are two relays as detailed in the video, the first nearest the terminal has the number 614 on its top. The second relay has 461 on the top. As advised earlier in this topic, the first relay, relay 1 was the one that was changed. Now when I picked up the relay from my local Audi garage, it was not the number (on the top) that I had established that I ordered, and requested that they check to see if it was the correct item (the original relay had 471 printed on its top). After about ten minutes checking, I was advised that the 614 relay was the superceeded relay. So according to the video, the original 471/614 relay must be the j179 relay.
While I was inspecting the footwell area, I took the two large fuses out to check their continuity (ok) but didn’t see the small one in between them. Will check it tomorrow. Many thanks to all who are taking an interest........!