Sound insulating trunk floor — a genuine BMW part, number 51 48 8 218 778. The number stamped on the part is 51488218778; BMW's catalog files it under the short number 8218778. You will find it on our Interior Body shelf, under Other Body equipment parts.
It fits the E46 sedan (320i, 323i, 325i, 328i and 330i, 1999–2005), with the M52, M54 or M56 engines — and the European-market versions.
BMW draws it on the Sound Insulating Rear (51_3266) diagram. It weighs about 750 g (1.7 lb).
We have not had one on the shelf yet. Request it and we will tell you when one comes off a car.
