Folding mirror issues

Hi all,

As fitted my 2011 superb has motorised and heated mirrors, coming home from work last week I had a Jag come too fast around a corner and took my O/S mirror clean off, broke the casting at the hinge.

I opted to get a mirror from the breakers yard, so matched the part numbers (3T0857934).

The new mirror has turned up and is now fitted as I needed the car, however it has 9 wires, rather than the 12 mine originally had and does not seem to fold to the same degree as the N/S (original) mirror does.

So a couple of questions,

* Does anyone here know what electrical differences this new mirror might have? I can see connections on the glass for the heated mirror are present, the mirror moves correctly on the controller and the mirror body does fold as expected, the mirror body also still houses the LED indicator and the downlight in the base of the mirror, im not sure what else the extra 3 wires in the old mirror could have done?

* why would the new mirror not fold as far?

It may just be me, as I never really took note of how far the old mirror folded, or it it was to the same degree as the N/S or not, however my partner actually pointed it out, wondering if it was working correctly and since looking at it, I cant help but wonder.

My only guess Is a slight variance in mirror models despite them seemingly having the same part numbers.

The new mirror is off a slightly newer car, a 2013 rather than a 2011.