2019 BMW X4 Bulb Size

Decision: This page presents a compact bulb size chart intended to help owners of a 2019 BMW X4 quickly identify common lamp types for headlights, fogs, turns, brake lights and reverse lamps, so they can order replacements with confidence. Constraints: I assume variation by trim and factory options, and note that the chart aims to reduce ordering errors rather than replace vehicle-specific verification. Options and Comparison: The chart compares common bulb codes side-by-side with their typical functions and equivalent aftermarket types, enabling an evidence-based interpretation of fitment and performance trade-offs. Recommendation: Use the chart as a first-check, then confirm with your owner’s manual or by inspecting the vehicle before purchase. Risks: There are limitations in trim-specific fitment; installation or electrical mismatches can occur. Affiliate disclaimer: links on this page may earn a commission if you buy through them, at no extra cost to you.