Really Really need some advice guys
My ABS longditudinal sensor has gone in my 2000 S3 210BHP which I have had for 2.5 years

I have spent hours going through EKTA and ELSAWIN and think I have found the right part but I am not 100% certain and I have a choice of 2

1 costs about 60 the other 300 ( through VAG spares )and audi have told me it costs about 500 - audi part only ?? but wont release the part number to me or my usual garage

VAG spares obviously need the part number.

It would help if I felt confident to pull the car to bits to locate these parts but I am a little out of touch having last worked on MK2 escort some 18 years ago

Anyone out there able to lend a hand ? - I really dont want to waste money on ordering the wrong part