2018 BMW ALPINA B6 Gran Coupe Bulb Size

Goal: If you need the correct replacement bulbs for your 2018 BMW Alpina B6 Gran Coupe, this bulb size chart narrows the options so you avoid mismatches that cause poor lighting or blown fuses. I created the list to remove guesswork and show recommended sizes for each lamp location. Prerequisites and step by step: Confirm the exact vehicle and trim, check the owner’s manual as an initial validation, and then compare the chart’s bulb type and socket dimensions to the part in hand. When replacing, note constraints like wattage and CAN-bus compatibility; the trade-off is typically longevity versus brightness. If a bulb doesn’t fit or flickers, double-check the socket and wiring before assuming the bulb is defective. Troubleshooting and wrap up: If questions remain, follow the validation steps again or consult a dealer. Affiliate disclaimer: some links on this page are affiliate links; I may earn a commission at no extra cost to you, and recommendations reflect practical experience rather than promotional bias.