I finally got an iPhone for the first time. It’s an iPhone 6 and I had to pair the bluetooth with both my 2006 A8L and 2008 Q7. The A8L MMI has software updated to 4610 which is much easier to pair, compared to the Q7 4140. Regardless, they both paired fine with the iPhone 6.
Every time we get a new phone, we want to pair with the bluetooth on Audi cars using MMI 2G system and it doesn’t work, the best is to delete all bluetooth devices stored in the memory, reset the pin code and start to pair again.