Mercedes-Benz 300SE Turn Signal Bulb Size

The Mercedes-Benz 300SE uses a 1034 bulb size for front turn signals and P21W bulb size for rear turn signals. The replacement chart covers 1988 to 1993 production years with corresponding 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

YearsBulb Size
1992-19931034
1988-1991P21/5W

Rear Turn Signal

YearsBulb Size
1988-1993P21W

Bulb Specifications

Description Bulb Size
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. Variant of 1157. 12V, 21/5W.1034
ECE standard (Europe & worldwide). Dual-filament signalling bulb with BAY15d bayonet base. 12V, 21W/5W.P21/5W
ECE standard (Europe & worldwide). Single-filament signalling bulb with BA15s bayonet base. 12V, 21W.P21W

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