Little vibrations and other questions from a new bimmer

[bobbyp]

Tires shouldn't be a cause of loose steering. Vibrations, yes. Have a mechanic check your front end suspension. You're getting up there in miles and bushings may be drying up from those Canadian winters.

[Steelhead]

In fact, it is the first winter for this X5 ! I bought it in Arkansas last July. Consequence of canadian winter: had to change valv cover gasket due to excess pressure a month ago because the original PCV valv freezed ( -25F that specific day !). The original valv was not insulated....