2018 BMW 530 Bulb Size

Goal: This page helps you quickly find correct bulb sizes for a 2018 BMW 530i when a light fails. Many owners waste time guessing sizes or buying wrong parts, so the list removes that guesswork and explains assumptions behind each entry. Prerequisites and step by step: confirm your vehicle’s production date and optional lighting package before selecting a bulb. Use the chart to match lamp location to bulb type, then validate by checking the owner’s manual or removing the socket to compare part numbers. That extra validation avoids returns and shows trade-offs between OEM and aftermarket choices. Troubleshooting and wrap up: if a bulb fits but flickers, check connectors and ground; if color differs, confirm Kelvin rating. Note: some links are affiliate links — I may earn a commission at no extra cost to you. This supports maintaining the chart and is the recommended transparency.