XC90 Front end issues ... tire wear Topic is solved

[Roger_850T]

I'm just checking to see what I set mine at. I have one reference that suggests toe-in at -0.20" +/- 0.1" for the front, which would be -5mm +/- 2.5mm for the total toe in. The -2mm that you ended up with is a little less toe-out than my spec suggests; that would tend to slightly more scrub the outer edges, but not terribly.

What concerns me a little more is the difference in camber. Spec is -0.33 deg, +/- 0.90 deg. I dislike yours because one is positive and one is negative, albeit by about the same amount. I always try to have them close to equal on both sides, somewhere between 0 and -0.33 degrees if I can. It's somewhat adjustable based on the play in the two large bolts where the strut meets the steering knuckle, I can usually get about half a degree there - enough to get them to match if the car has not been crashed. Yours, at -0.15 is a tighter spec, and closer to zero which I would like, but the right side at +0.14 is not ideal. If it was mine, I'd try and adjust that, then reset the toe again, and see how I like it.

I hope this helps!

Roger

[Volvozzie]

"Have you noticed anything in the steering under hard or full throttle acceleration from a low speed?"

My issue was the steering not centering from full left or right lock and scrubbing outside edges of front tyres. I had not noticed any issues with the steering when accelerating from low speed.

[Volvozzie]

And for an update, we have now done 3,500 kms since the corrected toe in spec (including a trip to the snow) and front tyres appear to be wearing evenly - so hopefully I'm out of the woods with this!

[jmbkhalil]

I have the same issues
Tires wear from the outside
Steering wheel carry on self turning towards full lock
while driving on a straight line the steering wheel rotates to the left and the car pulls to the left
Wheel alignment in center green
All steering parts were replaced.
If there are any updates please let me know
Thanks, Jean

[chitownV]

You may want to start looking at the control arm bushings. They are notorious for giving those pull, wander, needing correction - issues. They can flex and alter the toe while driving or braking.

I always say to people to do a cheap or no cost check at home. Cut up an old coolant hose or buy the cheapest one you can and slide pieces into the forward lower control arm bushing cutouts. This will help reduce the cutout flex. If it does help, then you know you have an issue with the control arm bushings. A visual inspection may also help.

You can also read this thread linked for which parts to buy as even big names like Lemforder may still be too soft for control arm bushings.
https://www.swedespeed.com/threads/chit ... ts.590829/