Mercedes-Benz CLK320 Turn Signal Bulb Size
The Mercedes-Benz CLK320 front inner turn signal bulb uses 1156NA size, while front turn signals accommodate 1156NA, 2357NA, or 1157NA sizes, and rear turn signals use P21W, 12496, or PY21W sizes. The replacement chart covers 1998 through 2005 production years with corresponding bulb specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
Front Inner Turn Signal
| Years | Bulb Size |
|---|---|
| 1998-2002 | 1156NA |
Front Turn Signal
| Years | Bulb Size |
|---|---|
| 2004-2005 | 2357NA (With HID Headlamps) |
| 1156NA (With Halogen Capsule Headlamps) | |
| 2003 | 1157NA (With HID Headlamps) |
| 1156NA (With Halogen Capsule Headlamps) | |
| 2000-2002 | P21W (Main) |
| 1998-1999 | PY21W (Main) |
| 12961 (Side car) |
Rear Turn Signal
| Years | Bulb Size |
|---|---|
| 2003-2005 | P21W |
| 2002 | 12496 |
| 2000-2001 | PY21W |
| 1998-1999 | 12496 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base, natural amber glass. 12V, 21W. | 1156NA |
| ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base, natural amber glass. 12V, 26.9W/8W. | 2357NA |
| ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base, natural amber glass. 12V, 21W/5W. | 1157NA |
| ECE standard (Europe & worldwide). Single-filament signalling bulb with BA15s bayonet base. 12V, 21W. | P21W |
| ECE standard (Europe & worldwide). Single-filament amber bulb with BAU15s bayonet base. 12V, 21W. | PY21W |
| Philips part number. Miniature wedge bulb (T10) with W2.1x9.5d base. 12V, 5W. | 12961 |
| Philips/Osram part number. Halogen bulb, specialty application. 12V. | 12496 |