This page covers bulb fitment for the 2018 Audi SQ5 and is organized by lighting position so you can quickly verify the correct bulb size before ordering replacements. Because Audi used LED lighting for most exterior and interior locations on this model, it is especially important to match the bulb type to the exact lamp location instead of assuming one size fits every light.
Use the chart on this page to confirm the bulb for each spot on your SQ5, including headlights, brake lights, turn signals, license plate lights, cabin lights, and cargo-area lighting. The 2018 Audi SQ5 can vary by market, trim, and lighting package, so checking by position is the safest way to avoid ordering the wrong part.
Fitment can differ depending on trim, package, and body style, especially when comparing factory LED systems with halogen-based setups on other vehicles. If your SQ5 has been modified with aftermarket LED conversions, the original bulb listing may not match what is currently installed, so it is smart to inspect the bulb already in the housing before buying replacements. For the best results, verify the connector style, bulb base, and lamp function, and remember that some lighting positions on this model use integrated LED assemblies rather than replaceable bulbs.