BMW 318i Tail Light Bulb Size
The BMW 318i tail light utilizes bulb sizes 12821 and P21/5W and 5008 for various lighting applications. Data for the specified components covers the range from 1984 through 1998.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
Inner Tail Light
| Years | Bulb Type | Shop |
|---|---|---|
| 1995-1998 | P21/4W | Check Price |
Tail Light
If US Type and EU Type show the same value, a direct cross-reference for this bulb is not available or the data is insufficient.
| Years | US Type | EU Type | Shop |
|---|---|---|---|
| 1997-1998 | 12821 | 12821 | Check Price |
| 1996 | 1157 | P21/5W | Check Price |
| 1993-1995 | 12821 | 12821 | Check Price |
| 1991 | 12821 | 12821 | Check Price |
| 1984-1985 | 5008 | 5008 | Check Price |
Bulb Specifications
| Description | Type | Shop |
|---|---|---|
| ECE standard (Europe & worldwide). Dual-filament signalling bulb with BAZ15d bayonet base. 12V, 21W/4W. | P21/4W | Check Price |
| Philips part number. Miniature wedge bulb (T10) with W2.1x9.5d base. 12V, 5W. | 12821 | Check Price |
| ECE standard (Europe & worldwide). Dual-filament signalling bulb with BAY15d bayonet base. 12V, 21W/5W. | P21/5W | Check Price |
| ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. 12V, 21W/5W. | 1157 | Check Price |
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Lower wattage variant of 1156. 12V. | 5008 | Check Price |