Mercedes-Benz E320 Turn Signal Bulb Size

The Mercedes-Benz E320 front turn signal bulb utilizes 3357NA, 3457NA, or 2357NA sizes depending on production specifications. The replacement chart covers 1994 through 2009 model years with corresponding bulb size data for both front and rear turn signal applications.

The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.

Front Turn Signal

YearsBulb Size
20093357NA (With Halogen Capsule Headlamps)
20083457NA (With Halogen Capsule Headlamps)
2004-20072357NA
1996-20031156NA
1994-1995P21/5W

Rear Turn Signal

YearsBulb Size
2000-20031156
1997-19991156NA
19961156
1995PY21W
199412496

Bulb Specifications

Description Bulb Size
ANSI standard (US & Canada). Single-filament wedge bulb (T25), natural amber glass. 12V, 27W.3357NA
ANSI standard (US & Canada). Dual-filament wedge bulb (T25), natural amber glass. 12V, 27W/7W.3457NA
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base, natural amber glass. 12V, 26.9W/8W.2357NA
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base, natural amber glass. 12V, 21W.1156NA
ECE standard (Europe & worldwide). Dual-filament signalling bulb with BAY15d bayonet base. 12V, 21W/5W.P21/5W
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 21W.1156
ECE standard (Europe & worldwide). Single-filament amber bulb with BAU15s bayonet base. 12V, 21W.PY21W
Philips/Osram part number. Halogen bulb, specialty application. 12V.12496

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