Another interesting and slightly disappointing fact I have found out today...even on the 7 series (G models) the passenger side wing mirror does not automatically dim.
(noticed it is not on our 2018 4 series hence why I checked on the 7 then afterwards).
Obviously the driver's side mirror and rear view mirror do (dim automatically based on sensors on the front and back of the rear view mirror) but not the passenger side mirror, apparently that was changed back late 2015 IIRC and since then they save a bit of money by not doing it on that side or on any model (although the standard specification sheet says that exterior mirrors are automatically dimming my VIN specific manual says only driver side mirror does.
I have to admit I haven't noticed until now (so not of large consequence but still disappointing) and have only read this but haven't been able to prove it myself yet...anyone else notice this or confirm / correct this statement? Does yours dim on that side and if so what year do you have? (your BMW app VIN specific manual will tell you as well in the chapter: controls / adjusting / mirrors / automatically dimming section.
Thanks. Curious to hear what others have in this regard and if it changed in UK spec in late 2015 or another time and if it has indeed changed back to both dimming again...Safe travels.