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FREE SHIPPING on US orders over $75 (oversize excepted) • Quality used E36 & E46 parts • Every part inspected & graded
3 Series Parts

Lock button

BMW Part Number:51 21 1 852 140
51211852140short number 1852140
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One email the moment one is listed — nothing else.

Fits E36 — 316i, 318i, 318is, 318tds, 320i, 323i, 323i 2.4, 325i +5 more
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Genuine BMW Part

Photos coming soon — see the BMW diagram below

Lock button – BMW diagram04 View BMW DiagramSee this part on the official exploded view

This is a genuine BMW lock button, part number 51 21 1 852 140. The number stamped on the part is 51211852140; BMW's catalog files it under the short number 1852140. You will find it on our Interior Body shelf, under Other Body equipment parts.

It fits the E36 sedan and touring (318i, 320i, 325i, 328i and M3, 1992–1999), with the M40, M42, M43, M44, M50 or M52 and other engines — and the European-market versions.

BMW draws it on 45 diagrams, among them Door lock front (41_0939) and Locking system, door, rear (41_0941). BMW's catalog calls for two of these at each place it is fitted. It weighs about 2 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.

Details

BMW Part Number51 21 1 852 140
Also written as512118521401852140
QualityGenuine BMW · OEM
SedanM52AutomaticCB85

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.