hi all so i have had my x5 for little over 3 years and in that time its pretty much always had a pdc fault , but now i have had enough and wont to fix it once and for all i do have a snap on code reader but it seems to not show any faults with the pdc but has proved useful on other faults , i have checked the sensors for the clicking noise replaced the ones which where not clicking repaired some broken wiring but still the fault is there, all i seem to get is different types of bleeping noises when i select reverse , so i am kind of wondering if there's a code reader out there which is good for fault finding pdc faults or do i just replace bits and hope for the best all help much appreciated on this one.