2019 BMW 330 Bulb Size

Decision: this page lists compatible bulb sizes for a 2019 BMW 330i to help you choose replacements quickly and accurately. Constraints include varying trim packages and multiple lighting systems, so the list focuses on factory-fit sizes and common aftermarket equivalents. Options are presented by location—headlight, fog, turn signal, interior—allowing a direct comparison of lamp types, wattages, and socket forms, which supports an evidence-based interpretation of fit and performance. Recommendation: use the listed OEM sizes as a baseline and consider the aftermarket alternatives noted when your hypothesis favors longer life or different color temperature, keeping the limitations in mind. Affiliate disclaimer: some links earn a small commission at no extra cost to you; this supports maintenance of the reference and does not affect the objectivity of the comparison. Risks include potential fitment differences from non-OEM parts, so verify before purchase.