2021 Audi S7 Bulb Size

Goal: If you’re replacing bulbs on a 2021 Audi S7, this chart removes uncertainty by listing lamp locations, recommended bulb types, and common OEM and aftermarket part numbers. As a technician, I focus on reducing guesswork and the trade-off between cost and fitment, so you know what to buy before you start. Prerequisites and step by step: confirm vehicle trim and inspect the existing bulb, then match location to chart entry and note the base type and wattage. Validation comes from checking fitment and function after installation and comparing any codes or warnings. If you see error messages, recheck seating and connector corrosion as likely causes. Troubleshooting and wrap up: use the chart as a reference, not a substitute for physical verification. Some links on this page are affiliate links; I may earn a small commission at no extra cost to you, which helps maintain accurate, tested recommendations.