One problem related to tire sidewall has been reported for the 2017 BMW X3. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2017 BMW X3 based on all problems reported for the 2017 X3.
P 245/50 r18 there were leanings from time to time. The firestone service checked the cause which related to the quality of the tires, too thin sidewall on all 4 tires.