Mercedes-Benz CLA250 Turn Signal Bulb Size
Mercedes-Benz CLA250 front and rear turn signal bulbs use PY21W or 12496 size replacements. Data spans 2014 to 2020 model years with bulb size 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 |
|---|---|---|---|
| 2020 | 7507 (Halogen) | PY21W | Check Price |
| 2019 | 12496 (With Halogen Capsule Headlamps) | 12496 | Check Price |
| 2017-2018 | 3457NA (With Halogen Capsule Headlamps) | PY27/7W | Check Price |
| 2016 | 3357NA (With Halogen Capsule Headlamps) | 3357NA | Check Price |
| 2014-2015 | 3457NA (With Halogen Capsule Headlamps) | PY27/7W | Check Price |
Rear 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 |
|---|---|---|---|
| 2020 | 12496 | 12496 | Check Price |
| 2018-2019 | 12496 (With Halogen Capsule Headlamps) | 12496 | Check Price |
| 2017 | 7507 (With Halogen Capsule Headlamps) | PY21W | Check Price |
| 2016 | 12496 (With Halogen Capsule Headlamps) | 12496 | Check Price |
| 2015 | 7507 (With Halogen Capsule Headlamps) | PY21W | Check Price |
| 2014 | 12496 (With Halogen Capsule Headlamps) | 12496 | Check Price |
Bulb Specifications
| Description | Type | Shop |
|---|---|---|
| ECE standard (Europe & worldwide). Single-filament amber bulb with BAU15s bayonet base. 12V, 21W. | PY21W | Check Price |
| Philips/Osram part number. Halogen bulb, specialty application. 12V. | 12496 | Check Price |
| ANSI standard (US & Canada). Dual-filament wedge bulb (T25), natural amber glass. 12V, 27W/7W. | 3457NA | Check Price |
| ANSI standard (US & Canada). Single-filament wedge bulb (T25), natural amber glass. 12V, 27W. | 3357NA | Check Price |