Tyre pressures were very carefully checked, then test drove three other V40's besides mine. Behaviour was more or less the same, ...............
You are right, I omitted writing that there is no drag any more, most probably the camber affected all four cars the same. Eagerly willing to hear about the behaviour of your long sought demonstrator.
I'm please that your car has been sorted, but .............
........... if only minor changes to the alignment of the steering corrected the problem then it sounds as if it's likely that a minor misalignment will cause the problem. And this is substantiated by the fact that all three of the other V40s you drove had the problem. It's not unknown for certain models of car to be susceptible to a certain problem, and I wonder whether pulling to one side is a problem to which V40s are susceptible.
Correct me if I've misinterpreted anything you've said.
Let me try to sort things out, written communication is sometimes problematic!
1. Minor changes to the alignment means to me that actually no alteration was needed, or that changes were within provisioned tolerance gap (this means they were acceptable and it could be considered allowed not to effect them).
2. I am known as a perfection seeker, maybe someone else wouldn't even notice the problem! Others that tried the car (not the dealer's people) said it was perfect!
3. Before the V40 I owned a 1998 Peugeot 406. The car was heavier, larger in dimensions and, above all, had a pure hydraulic steering system, as this V40 has a hydraulic-electrically assisted, as long as I know. Hydraulic systems are better in directionality, and as I was used to it, expected something similar, if not better, from my new car. To tell you the truth, the Peugeot could go for more than 2 or 3 kms on straight course without even touching the steering wheel, sometimes this was scary.
4. I repeat, the problem vanishes totally when tyre pressure is set to 230 kPa, which is the normal pressure and not to 260 kPa (eco pressure).
Anyway thanks for the interest (and forgive my english, which may have done what I said a bit incomprehensible).