Originally Posted by M3V8Driver
Ditto here, and the steering is not affected. OP, save yourself the hassel and let it go. Clean up the mess and check it next time. You'll likley be spill free. But should hte issue return (i.e. - somebody tops off the steering fluid), wrap some of that cheap high-temp heat blanket material around the steering box or install some exhaust header wrap. Problem solved. Finally, I believe somebody on this forum was working with a manufacturer on an aftermarket shield we could purchase. We'll see.
ButtonWillow last weekend, temp was 105F
Mine overflowed a little after the first session, I cleaned it up, tightened the cap a few degrees and that was the end of it.
Couple of other M3's had the same issue and same resolution.