The Mercedes-Benz CLK63 AMG front inner turn signal uses a 1157NA bulb size, front outer uses 12961, front uses P21W, and rear uses 12496 or PY21W bulb sizes. The replacement chart covers 2007 to 2008 model 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.