Audi S4
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The Audi S4 is a performance-focused sedan that has changed over the years, so bulb fitment can vary by model year, trim, and lighting package. If you are replacing a headlight, fog light, turn signal, brake light, or interior bulb, this model page gives you a simple starting point and helps you narrow down the right year page for your car.
Use the year-specific pages for exact bulb sizes and fitment details. This S4 page covers the model-level overview for the available years on bulbsize.org, including 2023, 2022, 2021, 2020, 2019, 2018, 2016, 2015, 2014, 2013, 2012, 2011, 2010, 2009, 2008, 2007, 2006, 2005, 2004, 2002, 2001, and 2000, so you can quickly find the correct chart for your specific vehicle.
Because the Audi S4 has been offered with different lighting technologies across its production run, the exact bulb type may depend on whether your car has halogen, HID/xenon, or LED equipment, as well as factory options and market-specific changes. For the most accurate result, match your S4’s model year first, then check the year page for the exact bulb sizes before buying replacements. This is especially important for exterior lights, where a small difference in housing or package can change the required bulb.
FAQ
Why should I use the year page instead of only the Audi S4 model page?
The model page is a guide, but the exact bulb size is listed on the year page. Audi changed lighting setups over time, so the correct fitment for a 2000 S4 may be different from a 2016 or 2023 S4.
Do all Audi S4 years use the same bulbs?
No. Even within the same model line, bulb fitment can change by year, body style, lighting package, and market. Always confirm the exact year before ordering bulbs.
Which years are covered on this Audi S4 page?
This page includes the available years listed for the S4 on bulbsize.org: 2023, 2022, 2021, 2020, 2019, 2018, 2016, 2015, 2014, 2013, 2012, 2011, 2010, 2009, 2008, 2007, 2006, 2005, 2004, 2002, 2001, and 2000.
How do I find the correct bulb for my Audi S4 headlights?
Start by selecting your exact model year, then check whether your S4 has halogen, HID/xenon, or LED headlights. The year page will list the exact bulb sizes and help you avoid buying the wrong type.
Can trim level or package options affect bulb fitment on the S4?
Yes. Options such as upgraded lighting packages, adaptive headlights, or different factory equipment can change bulb requirements. That is why year-specific guidance is the safest way to confirm fitment.
What if my Audi S4 has LED lighting?
LED-equipped S4 models may use different service parts than older halogen or xenon setups. Some LED assemblies do not use a simple replaceable bulb for every function, so check the year page carefully before purchasing.
Are interior bulbs listed the same way as exterior bulbs?
Interior bulb fitment can also vary by year and configuration, but it is usually less complicated than exterior lighting. Still, the exact bulb size should be confirmed on the year page for your S4.
Why does the Audi S4 have different bulb fitment across generations?
Audi updated the S4 over time with new headlight designs, taillight styles, and electrical systems. Those changes often affect the bulb type, socket style, or whether a light uses a replaceable bulb at all.
What should I do if I am not sure whether my S4 is halogen, xenon, or LED?
Check the owner’s manual, inspect the headlight housing, or compare your car with the photos and notes on the year page. Identifying the lighting type first makes it much easier to choose the correct bulb.
Does this page list exact bulb part numbers for the Audi S4?
No. This model page is meant to guide you to the correct year page. Exact bulb sizes and part numbers belong on the year-specific charts, where the fitment details are matched to your S4’s production year.
Can I use the same bulb guide for both sedan and other S4 body styles?
Not always. Body style and market can affect lighting equipment, so it is best to use the exact year page for your specific S4 version rather than assuming every configuration is identical.
What is the safest way to buy replacement bulbs for my Audi S4?
Choose your exact year first, confirm the lighting type and package, and then use the year page to verify the bulb size before ordering. That approach reduces the chance of fitment mistakes and returns.