Are you using an iPhone or Android? I just tried this on a main road in Sydney (Dural) at a site that doesn't have a street number, shared it to My BMW which chose a suburb (Ryde) 27km away, so it does not work for me. Latest My BMW app installed.You can share any address from Google maps to the MyBMW app; just locate the post code or plus code on Google Maps and select share to MYBMW and your car.
I'm in NZ and haven't had any issues with MyBMW here maps. They are just as accurate as Google,,(which itself isnt so good at times) IAlso in the latest software update for i-drive on the G20, you can now revert to the old 'classic' way of entering addresses, rather then the current method of just typing..which I actually prefer.
I'm unsure about your comment on no "metric" option. The MyBMW App takes its settings from your car so if the car is set to metric, the maps should also be in km etc.
My beef with entering Plus Codes is if I need to manually enter a destination. Another example I gave to BMW during my lengthy whinge was a call from a friend in an area we're both traveling in. She calls because she had a flat tyre and would like help changing it. Typing in a GPS code is clumsy and prone to error. Locating oneself on GMaps and getting a Plus Code is simple, easy to read out or she can SMS that to me and I can paste it into BMW Connected and go to exactly where she is.
You are correct, they fixed the KM problem at some stage. I have rarely looked at My BMW since I installed it earlier this year when they announced the cessation of BMW Connected, but I was astonished to see the thing read in Miles. I only occasionally check My BMW after each update to see if I have to wear sunglasses because it still doesn't have Dark Mode.
When did you get the AU/NZ 2021-1 update? After months of pestering my dealer and Connected Drive Support Australia, it was released for my car 14 July, after being told "already available", 8 May, 30 June, end of July.