This is old thread but i am new here and have to respond..
To me in ISRAEL, it seems like every dealer's garage in every country are the same - useless and unprofessional. I am always surprised by the Amateurism.
I see this in peugeot, toyota, isuzu, landrover and now also in JEEP. sad.
Dodgy connector should have been diagnosed at the begining when they knew the source of problem comes from that area..
I have some small issues with my "new" 2012 wk2 CRD and they also don't know what to do but take money from me.. so I started doing things myself.
I hope your Airbag light will not come back.