Use this BMW Front Door Lock Micro Switch to replace the matching original component on BMW 3 Series and M models from 1992–1999. It reports the door-lock mechanism’s position to the vehicle electrical system.
BMW develops its original service parts to match the intended vehicle system, attachment points, and application details.
Technical Details
- BMW part number: 51-21-8-208-423
- Application range: BMW 3 Series & M Models (1992–1999)
- Fitment coverage: 9 listed model applications
- Product type: Front Door Lock Micro Switch
- Installation location: Front
Fitment & Compatibility
Before ordering, compare the vehicle against the year, model, submodel, and notes shown in the fitment table below.
If the mounting location or vehicle equipment is unclear, send PMB Performance the VIN. We have more than 20 years of experience handling application-specific parts questions.
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 1994 | BMW | 318i | ||
| 1995 | BMW | 318i | ||
| 1996 | BMW | 318i | ||
| 1997 | BMW | 318i | ||
| 1992 | BMW | 318is | ||
| 1993 | BMW | 318is | ||
| 1994 | BMW | 318is | ||
| 1995 | BMW | 318is | ||
| 1996 | BMW | 318is | ||
| 1997 | BMW | 318is | ||
| 1998 | BMW | 323i | ||
| 1999 | BMW | 323i | ||
| 1998 | BMW | 323is | ||
| 1999 | BMW | 323is | ||
| 1994 | BMW | 325i | ||
| 1995 | BMW | 325i | ||
| 1992 | BMW | 325is | ||
| 1993 | BMW | 325is | ||
| 1994 | BMW | 325is | ||
| 1995 | BMW | 325is | ||
| 1996 | BMW | 328i | ||
| 1997 | BMW | 328i | ||
| 1998 | BMW | 328i | ||
| 1999 | BMW | 328i | ||
| 1996 | BMW | 328is | ||
| 1997 | BMW | 328is | ||
| 1998 | BMW | 328is | ||
| 1999 | BMW | 328is | ||
| 1995 | BMW | M3 | ||
| 1996 | BMW | M3 | ||
| 1997 | BMW | M3 | ||
| 1998 | BMW | M3 | ||
| 1999 | BMW | M3 |