Is VDC on my Q4 over cautious or faulty?
I first noticed this when going over large "bumps" in the road at speed, the kind that make you go "whoah!" (Dukes of Hazzard style). When descending down the other side of the bump the engine seems to stutter as if the fuel flow is being interrupted and the amber VDC light comes on. In this kind of scenario it's probably justified for VDC to activate, but it's happening again and again, once when I went round a corner quickly in the city centre on a steep slope, again in the middle of the countryside when I turned a corner on a slope at a reasonable speed it came on.
It lasts for anything up to about 4 seconds, when back on the flat, way beyond what I believe is required to deal with whatever problem it thinks it is trying to fix and as such I find it very offputting.
Should it do this? Have other 159 owners noticed this? I have the 3.2 Q4.
I don't believe in any of these scenarios it should have come on and stayed on for the time that it did and wonder if it needs recalibrated.