Mercedes-Benz R320 Turn Signal Bulb Size
Mercedes-Benz R320 front turn signal bulbs use 3357NA or 3457NA size, while rear turn signal bulbs require 12496 size. The replacement chart covers 2007 through 2009 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 Turn Signal
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 |
|---|---|---|---|
| 2009 | 3357NA | 3357NA | Check Price |
| 2007-2008 | 3457NA | PY27/7W | Check Price |
Rear Turn Signal
| Years | Bulb Type | Shop |
|---|---|---|
| 2007-2009 | 12496 | Check Price |
Bulb Specifications
| Description | Type | Shop |
|---|---|---|
| ANSI standard (US & Canada). Single-filament wedge bulb (T25), natural amber glass. 12V, 27W. | 3357NA | Check Price |
| ANSI standard (US & Canada). Dual-filament wedge bulb (T25), natural amber glass. 12V, 27W/7W. | 3457NA | Check Price |
| Philips/Osram part number. Halogen bulb, specialty application. 12V. | 12496 | Check Price |