The BMW 650i front inner turn signal requires a 7440NA bulb size, while front turn signals use either 12188 or 7440NA bulb sizes, and rear turn signals require a PY21W bulb size. The replacement chart covers vehicle production years spanning 2006 to 2015 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.