Window knobs for IVA

[STR_Strat]

Interior design features and fittings in the “specified zone” which are contactable with a 165mm sphere must have a radius of curvature of 2.5mm or greater, except where a projection from a panel is less than 3.2mm where the edges must be at least blunted. (see note 3, 4and 9) see annex 1 and 2

The 19mm radius only applies to the bottom edge of the dash panel

[john]

Right. Different interpretations at different stations again then. Though not been to an IVA for a while. In fact, thinking about it, I've never been to an IVA. Only an SVA!

[StruanR]

Right. Different interpretations at different stations again then. Though not been to an IVA for a while. In fact, thinking about it, I've never been to an IVA. Only an SVA!

Different interpretations at the same station with different inspectors too.
Built white car to spec that satisfied Gillingham for blue car, different inspector had many different views...
It is just a case of pot luck on the day, but if you have a list of points to fix you only have those to do. They will not check anything else, as long as you re-submit within the re-test period.
So you often can't give hard and fast rules on what will pass IVA.
I needed to put a longer wiper blade to sweep more of the screen.
Last year that failed the MOT because it did not contact the screen over the full arc, we had to put the shorter blade back on to pass....
Struan