BMW 318i Back Up Light Bulb Size
The BMW 318i back up light utilizes a P21W bulb size for illumination purposes. Available data for the specified component covers the period from 1984 through 1998.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
Bulb Size by Year Range
| Years | US Type | EU Type | Shop |
|---|---|---|---|
| 1993-1998 | 1156 | P21W | Check Price |
| 1991 | 1156 | P21W | Check Price |
| 1984-1985 | 1156 | P21W | Check Price |
Bulb Specifications
| Description | Type | Shop |
|---|---|---|
| ECE standard (Europe & worldwide). Single-filament signalling bulb with BA15s bayonet base. 12V, 21W. | P21W | Check Price |
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 21W. | 1156 | Check Price |