see the results here:

http://www.ebay.ie/sch/i.html?_from=R40&_trksid=p2050601.m570.l1313.TR0.T RC0.H0.Xbmw+e46+dsc+sensor.TRS0&_nkw=bmw+e46+dsc+s ensor&ghostText=&_sacat=0

any guidance as to which one i need?