The Mercedes-Benz GLA45 AMG front turn signal uses bulb sizes 12496, 3357NA, or 3457NA, while the rear turn signal requires 12496 or PY21W size bulbs. The replacement chart covers 2015 to 2019 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.