Have somebody launch the car while you are standing at each corner to confirm which is squeaking.

Then see if pushing the bumper can reproduce.

I've seen the issue quite recently on XO and it was a suspension bolt on the tension strut was loose. Likely because the installer never torqued to the spec of something like 165 ft·lb (250 N·m).

You can creep and stab the brakes to get the front end dipb better than human push on the bumper.

That test exercises the ball joints more than the bushings.

My suspicion is the outer tie rod dive that's affected by steering and dropping to the ground. (but so is main ball joint among others)


–awr–

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2011 E70 • N55 (me)
2012 E70 • N63 (wife)