Check out car-parts.com , you can search junk yards for A3s. Look for one close by, maybe you can pull the part yourself.
Looking for that part. The sensor aspect of that doesn't work on mine anymore tells me my trunk is open all the time.
Looking for a cheaper alternative than online store. Anyone have access to a parting out a3?
AVOID this part on a parted car.
It's a common fault, caused by water ingress from rear washer fluid leakage.
Any car that's been sat in a junkyard... you've got to be kidding. This part isn't going to be reliable.