Mercedes-Benz S420 Fog Light Bulb Size

Mercedes-Benz S420 front fog lights utilize H1 and H3 bulb sizes, while rear fog lights require P21W bulbs. The replacement chart covers 1994 to 1999 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 Fog Light

YearsBulb TypeShop
1995-1999H1Check Price
1994H3Check Price

Rear Fog Light

YearsUS TypeEU TypeShop
1995-19991156P21WCheck Price

Bulb Specifications

Description Type Shop
ECE standard (Europe & worldwide). Single-filament halogen bulb with P14.5s base. Also approved in the US and Japan. 12V, 55W.H1Check Price
ECE standard (Europe & worldwide). Single-filament halogen bulb with PK22s base. Also approved in the US and Japan. 12V, 55W.H3Check Price
ECE standard (Europe & worldwide). Single-filament signalling bulb with BA15s bayonet base. 12V, 21W.P21WCheck Price
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 21W.1156Check Price

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