Hi veew
I had genuine electrics fitted by dealer and installed a Westfalia towbar myself. Unfortunately in NZ the genuine electrics do not give you Trailer Assist, only adjusts ABS to help overcome trailer sway, plus disables blind spot monitoring. I spoke to several dealers, as I initially thought they had not fully programmed all the options, but they all said they just download a set routine into the CPU provided by VW - no individual parameter changes using VCDS.
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