Fellow Member (>400)
Join Date: Apr 2009
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Cheers Doug, I'll try that to see where the fault is. To have 3 sensors gone is unlucky. My inital joy at having 1 easy repair sensor faulty was a tad hasty as it's looking more like 3 are going to need replacing so its bumper off.
Adam, the trim mounted sensors are an easy repair. To remove the plastic trim look underneath the trim itself on the edge nearest the rear door, you will see a cut out. Get a flat tip driver and prize off the trim. Suggest you mask the paint underneath the trim, I built up a couple of layers of masking tape to help protect the bumper if I slipped. My trim was quite tricky to remove, I guess it has not been off in 10years so fair enough, you just need to be quite forceful without bending it at too sharp an angle, it will come off, just takes a bit of effort, or mine did anyway.
I ordered a replacement sensor from e-bay (66 21 6 938 739), confirmed on RealOEM that it was a compatible part and when it arrived turns out it is not the same. See pics when I removed the sensor the part number on it is (66 21 6 902182).
I was wondering if these sensors are cross compatible, i.e will the complete round one work in my vehicle, I have also read the original ones require painting. If this is the case I might just order another couple of the full round sensor (938 739) as my car is black they will look OK.
Audi S6 V10.......
330ci Sport Conv (silver)
Escort Cosworth (silver)
Sapphire Cosworth (2wd) (magenta)
MKI XR4x4 (white)
MKI XR2 (white)