Back from the workshop [
]...
First surprise : the MKIV was in their database, as well as the CRS and the lightweight [8D] !quite astonishing for a car produced at less than 500 ex. , and as there are less than 5 registered in France!
Second surprise : my car wasn't that much out of setting for the front toe-in, as I expected, but way out at rear, with wheels which were pointing in each direction(respectively -0°47" & +1°07 )!
Fortunately, it can be modified by operating (clockwise or anti-clockwise) the kind of anti-tramp bar at the bottom of the A-arm ...
Rear Camber & castor were ok, but front camber wasn't, but as it implies to remove the upper A-arm, we didn't change it ... Front alignement (toe-in) was corrected, and now the car goes straight!
Final settings are: castor 3
Front toe-in : 0°,10" on each side (0°20" total)
Front camber: -0°45" (I achieved zero on one side, and 0°17" on the other)
Rear toe-out: 0°08" on each side (0°16" total)
Rear camber: -0°45" (I achieved -0°39 and -0°47")
I must say that it is the best way to spend 82€ (around £60) [
] ! Huge improvement on handling, and a way less sensitive on bumps on the road ... And my car used to drive straight, no uneven worn out tires, etc... !