NHTSA complaint #11764787

Owner complaint summary

Purchased BMW X3 Feb 2025. On test drive left wheel shimmy on left turn noted. Salesman stated it "was a safety feature he could not turn off". Vehicle continues to have shimmy/vibration on left front wheel with left turns. I have had the tires balanced/rotated and aligned multiple times with no change to left vibration on left turn. I have informed BMW of issue every time the vehicle is in for service. They finally did a "check" on the vehicle and found no issues. The dealer kept my vehicle for a week for the service tech to test drive, he was unable to reproduce the issue. In doing research, BMW Service information Bulletin (Revision 3) replaces SI B27 2 20 May 2024 was located. I presented it to the Service Tech and Service Director. The Service Director stated they have seen a lot of this issue coming in lately, and in the future expected there would be a recall. He stated it was covered under warranty, CPO and 50, 000 miles. The dealership changed out the transfer case fluid as per SI B27 02 20 states. I was informed to drive it for 125 miles and record any wheel issues. I did. The issued continued with turns and now would pull to the right at times. I made an appt to have the transfer case replaced. After having my vehicle for 8 days, I received a call stating that they cannot reproduce the issue and therefore, will not replace the transfer case. I have stated to them that it is not consistent. Their service tech may drive very differently than I. Any change in brake pressure, gas pedal pressure, turning ratio and temperature may have an affect on it, and they should be aware of this. I did not see any reference in the safety bulletin stating that the issue must be reproducible by a BMW service technician.