Bump stop — a genuine BMW part, number 51 17 7 016 945. The number stamped on the part is 51177016945; BMW's catalog files it under the short number 7016945. You will find it on our Interior Body shelf, under Bumper, rear.
It fits the E46 convertible (323i, 325i, 330i and M3, 2000–2006), with the M52, M54 or S54 engines — and the European-market versions.
BMW draws it on the Folding top compartment lid (41_1348) diagram. BMW's catalog calls for two of these at each place it is fitted. It weighs about 16 g (under 0.1 lb).
We have not had one on the shelf yet. Request it and we will tell you when one comes off a car.
Every used part is inspected and graded before listing. Condition grades:
Good — minimal wear, fully functional.
Fair — normal wear, fully functional.
Acceptable — visible wear, still functional.
Returns: 30 days if a part arrives damaged or isn't what the listing described. Full policy.
Shipping: Ships within the US. Orders ship within 1–2 business days; small parcels ship free on orders of $75.00 or more. Oversize items ship at a flat $49.99 each — free shipping does not cover them.
