I guess I missed your reply as well @Breezy_Pete, but thanks for the input:) Here are some updates on my issues, in case anyone is experiencing something similar: A few weeks ago I was in contact with a parts retailer here in Norway, and they quoted me for a used B-revision throttle body. I specifically asked if they could guarantee compatibility, given that the B-revision is not listed as superseding the base revision 03F166062. He seemed adamant it would work. Still a bit sceptical, I decided to give it a try. Fast forward a few weeks, and I have now installed the new TB. There were a few hurdles getting the ECU to accept a new TB adaptation, but I think that was mostly due to the coolant temperature being too low. Once I got that to work, it seems to run just fine. Idle is smooth, and no fault codes or EPC lights. Based on this, it seems like 03F133062B is indeed compatible with the 1.2 CBZA. I only did a 20 minute test drive though. I'll post here again in a few weeks once I've done some more miles.