Mercedes-Benz C280 front and rear side marker bulbs utilize sizes 12961, 2357NA, P21/5W for front applications and 12821 for rear positions, with bulb specifications varying across the model line. The replacement chart covers 1994 through 2007 model years with corresponding bulb size data.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.