Genuine BMW part 51 71 8 253 829: Cover, wheel arch cover, rear left. The number stamped on the part is 51718253829; BMW's catalog files it under the short number 8253829. You will find it on our Interior Body shelf, under Other Body equipment parts.
It fits the E46 compact (316ti, 318td, 318ti, 320td and 325ti, 2001–2004), with the M47N, M54, N40, N42, N45 or N46 engines.
BMW draws it on 2 diagrams, among them Various mounting parts (51_3285) and Mounting parts (51_4433). It weighs about 180 g (0.4 lb).
We have not had one on the shelf yet. Request it and we will tell you when one comes off a car.
