Genuine BMW part 51 37 7 001 621: Vent window mechanism, left. The number stamped on the part is 51377001621; BMW's catalog files it under the short number 7001621. 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 the Glazing II (51_4394) diagram. It weighs about 208 g (0.5 lb).
We have not had one on the shelf yet. Request it and we will tell you when one comes off a car.
