Audi S4 2016 Bulb Size
Bulb size chart
This page helps you verify the bulb sizes for a 2016 Audi S4 by lighting position, so you can match the right bulb to the right socket before ordering. Because Audi used different lighting setups depending on trim, market, and body style, checking the exact location is the safest way to confirm fitment.
For the 2016 Audi S4, many exterior lighting points use LED assemblies, while several interior and utility lamps still use replaceable bulbs. The chart on this page organizes the common bulb types by position, making it easier to identify what belongs in the headlights, tail lamps, license plate lights, cabin lights, and cargo-area lighting.
Fitment can vary with trim package, lighting package, and whether the car has factory LED or xenon equipment, so always compare the bulb location on your vehicle with the chart before buying. If your S4 has been modified with aftermarket LED conversions, the bulb listed for the original setup may not match what is installed now. When possible, remove the old bulb and check the marking on the base before purchase, especially for interior bulbs and any front lighting that may have been changed from halogen to LED or vice versa.
FAQ
What bulb does the 2016 Audi S4 use for the low beam and high beam headlights?
The headlight bulb for both high beam and low beam is listed as D3S on this page. That applies to the factory headlamp setup shown in the chart.
Which exterior lights on the 2016 Audi S4 are LED?
The chart shows LED for the center high mount stop light, brake light, license plate light, parking light, tail light, daytime running light, rear turn signal, front side marker, rear side marker, and stepwell light. These are typically sealed or integrated LED assemblies rather than simple replaceable bulbs.
What is the reverse light bulb size for the 2016 Audi S4?
The back up reverse light bulb is listed as 921. If your car has been modified or uses a different market-specific lamp, confirm the socket before ordering.
What bulb does the front turn signal use on a 2016 Audi S4?
The front turn signal light bulb is listed as 64132. Because front lighting can vary by package or region, it is a good idea to verify the installed bulb before replacing it.
Which bulb sizes are used for the glove box, trunk, map lights, and interior door lights?
Those locations are listed with 2825 and 98. The page groups them together because those interior positions commonly share the same style of bulb, but you should still check the actual lamp housing on your vehicle.
What bulb sizes are used for the dome light and vanity mirror light?
The dome light uses 6411 or 6428, while the vanity mirror light uses 6418. These are interior fitment references for the 2016 Audi S4 shown in the chart.
Do all 2016 Audi S4 models use the same bulbs?
Not always. Trim, lighting package, market, and body style can change the exact setup. The bulb chart is a strong reference, but the installed bulb should always be confirmed on the car.
Can I replace LED exterior lamps with standard bulbs on this car?
Usually no, not if the lamp is an integrated LED unit. Many of the exterior positions on the 2016 Audi S4 are listed as LED assemblies, which are not simple bulb swaps like a halogen socket.
Why should I check the installed bulb before ordering replacements?
Because some lighting positions can differ by market or previous repairs, and aftermarket conversions may already be installed. Checking the bulb marking or removing the old bulb helps avoid ordering the wrong size.
Are halogen and LED replacements interchangeable on the 2016 Audi S4?
Not automatically. A bulb size may fit the socket, but the lamp housing, wiring, and error monitoring may not support a different technology. Match the original setup first, especially for exterior lights.
What should I do if my Audi S4 has an aftermarket LED conversion?
Use the bulb in the car as the reference, not only the factory chart. Aftermarket conversions can change the bulb type, adapter, or load requirements, so confirm the exact part installed before buying replacements.
Is this page useful for both sedan and wagon body styles?
It is useful as a starting reference, but body style can affect certain lighting details. Always compare the bulb position on your specific 2016 Audi S4 to the chart before replacing anything.