M235i Squeak in rear Suspension..
So its driving me completely mad. At slow speeds over big bumps I get a little "squeak" best way i can describe it. I have it lowered with the Dinan springs but drove it that way for months with no noise. I'm in WI so I put on winter tires. I thought maybe it could be the cold but we had a rare 70 degree February day and still there. Any thoughts would be appreciated