I've just had 2 new rear tyres fitted to my M3 with factory fitted 19" 's on
it. I had a nail in one so the pressure warning light came on.
Since having them fitted the pressure warning light keeps coming on, I keep
resetting it and checking the pressures which seem to be ok.
On the inside of the door it states the 19" wheels should have between 2.4
and 3.3 BAR in them, that sounds like a lot when converted to PSI?
2.4 bar = 34.8 pounds per square inch
3.3 bar = 47.8 pounds per square inch
I'm usually in the car alone and don't carry anything heavy, but at BMW
they've put 33psi in the rear and the front have 30? Sounds like if the
door sticker is right I should have them all running at about 36?
Is the warning coming on because the pressures are too low in the 1st place?
I've also notice the car seems a bit "light" on the road, as though it's not
really as connected as before, is this just because I've got a lot more grip
and am not driving with slicks on or is it because I've got new tyres on the
back and 17,000 on the fronts?