2018 BMW 740 Bulb Size

Misconception: the bulb list is just a shopping list and you can pick any size that looks similar. It seems true because many bulbs look alike and fit the socket, so thinking of it as a visual match feels okay. That mental model is tempting, especially if you’re in a hurry. What is true is a bit different. The chart shows the exact bulb types used on a 2018 BMW 740i so you get the right fit, wattage, and light pattern. A simple rule of thumb is to match the bulb code from the list to your car’s headlamp housing. The implication is fewer returns, proper beam alignment, and safer night driving. Quick recap: check the chart against the vehicle manual, test the new bulb before final installation, and confirm fit. Some links on this page are affiliate links, which means I may earn a small commission if you buy through them at no extra cost to you.