Hi thomas; the issue as I understand it is that its the powder coating (any colour) makes the pre-drilled holes too small (just slightly). As ECB told me, all the installer needs to do (ho, ho) is to ream them to the right diameter, then replace the OEM sensors in the right position - they are very sensitive to depth in the hole and to any lateral pressure on their housing. My installer put the colour coded ones back correctly (centre ones black, outer ones white - in my case), but couldnt get them properly positioned, at any of the attempts. Dealer advice is that they were never properly fastened to the bar, presumably there is some kind of rear fixing. I just ran out of time/energy to keep up the fight. And then it got complicated by a rear sensor being covered by the installation of wheel carrier, and the same story - after two attempts, should work, but dont. In the end, I folded and wrote it all off to experience.
With a bit more perseverance, I think the front sensor problem should have been resolvable, but the installer has to cover the half day labour each time. ECB I think have let us all down on this front (better guidance to installers is needed).

