The X5 is a midsized SUV, manufactured by BMW. The X5 has a side turn signal indicator light, directly behind the front wheel, on each side that helps other drivers see your turn signal when driving at night or during inclement weather. Over time, the bulb can burn out and needs replacement for continued safety. Fortunately, according to the BMW X5 owner's manual, you can replace the bulb yourself with no special tools within a few minutes.
Press your fingers against the back side of the side turn signal indicator cover, and push forward. The cover will slide off, exposing the bulb beneath.
Grasp the bulb with your fingers, and turn it counterclockwise. Pull the bulb out to remove it. Discard the old bulb.
Insert a new, five-watt W5W bulb, and turn it clockwise.
Replace the turn signal indicator cover, and press your fingers against the front side of the cover to lock it in place. Replace the other side turn signal indicator, if necessary.