Audi S4 2012 Bulb Size

Bulb size chart

Fog Light Bulb Front - H11 LED, H16 LED
Headlight Bulb High Beam and Low Beam - D3S
Back Up Reverse Light Bulb - 921
Brake Light Bulb - LED
Center High Mount Stop Light Bulb - LED
Daytime Running Light Bulb - LED
License Plate Light Bulb - 6418
Side Marker Light Bulb Front - 2825, 98
Stepwell Light Bulb - LED
Tail Light Bulb - LED
Turn Signal Light Bulb Front - 12272NA
Turn Signal Light Bulb Rear - 7506
Glove Box Light Bulb - 2825, 98
Interior Door Light Bulb - 2825, 98
Map Light Bulb - 2825, 98
Trunk or Cargo Area Light - 2825, 98
Vanity Mirror Light Bulb - 6418

H11 LED Bulbs

Used for: Fog Light Bulb Front

View all 5 replacement options for size H11 LED →

H16 LED Bulbs

Used for: Fog Light Bulb Front

View all 5 replacement options for size H16 LED →

D3S Bulbs

Used for: Headlight Bulb High Beam and Low Beam

Philips D3S Standard Authentic Xenon HID

Philips D3S Standard Authentic Xenon HID

POWERFUL LIGHT FROM XENON HID BULBS OFFER MAXIMUM SAFETY: Xenon HID (High Intensity Discharge) headlight bulbs offer twice as much light* for safer driving in all conditions while consuming 50% less power. The intense white light produced by the Xenon HID lamps is comparable to daylight. Studies have demonstrated that xenon automotive lighting helps drivers to concentrate on the road and to distinguish obstacles and road signs much faster than traditional lamps. *Compared to standard halogen bulbs

$79.99

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OSRAM XENARC D3S HID Xenon Headlight bulbs 66340

OSRAM XENARC D3S HID Xenon Headlight bulbs 66340

 Extremely Long Life with precise light distribution & consistent performance - can efficiently work for 4000 hours.  All HID lights discolor to get whiter/bluer over usage & dim down. When comparing this NEW bulb against your OLD bulb, the NEW bulb may look warmer in color, which is normal. Replacing in PAIR is suggested. Extremely Long Life with precise light distribution & consistent performance. 100% legal for On/Off-road use | Replace in pairs for optimal performance.

$108.99

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View all 10 replacement options for size D3S →

921 Bulbs

Used for: Back Up Reverse Light Bulb

View all 14 replacement options for size 921 →

6418 Bulbs

Used for: License Plate Light Bulb, Vanity Mirror Light Bulb

Philips 6418 Ultinon LED Bulb

Philips 6418 Ultinon LED Bulb

If you are looking to upgrade your style without buying a new car, replacing your interior and exterior lighting with Philips Ultinon LEDs is a smart way to spend your money. Philips Ultinon LED lights are a direct replacement for conventional bulbs. They’re easy to install and available for a wide range of interior and exterior applications. Whether it’s for backup, stopping, or signaling, Philips Ultinon exterior lighting is designed to provide excellent light distribution. The light is projected where you need it so not only can you see more inside your car, you can see more on the road. Make a statement and get noticed with Philips LEDs.

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View all 9 replacement options for size 6418 →

2825 Bulbs

Used for: Side Marker Light Bulb Front, Glove Box Light Bulb, Interior Door Light Bulb, Map Light Bulb, Trunk or Cargo Area Light

View all 12 replacement options for size 2825 →

98 Bulbs

Used for: Side Marker Light Bulb Front, Glove Box Light Bulb, Interior Door Light Bulb, Map Light Bulb, Trunk or Cargo Area Light

View all 10 replacement options for size 98 →

12272NA Bulbs

Used for: Turn Signal Light Bulb Front

View all 11 replacement options for size 12272NA →

7506 Bulbs

Used for: Turn Signal Light Bulb Rear

Osram 7506 Original Light Bulbs with Metal Bases

Osram 7506 Original Light Bulbs with Metal Bases

As the leading global provider, OSRAM takes pride in being the foremost manufacturer of automotive bulbs, catering to the needs of vehicle manufacturers worldwide. Their unmatched expertise has made them the trusted supplier for millions of cars and trucks manufactured by renowned automotive giants. Here, we proudly offer the OSRAM 7506 (P21W-382) bulb, identical to the ones provided directly to vehicle manufacturers. It boasts an exceptional price-to-performance ratio, ensuring top-notch quality at an affordable rate. With a combination of superior craftsmanship, remarkable luminosity, and unwavering durability, OSRAM's Original Equipment products outshine many other bulbs available in the market, providing a genuine advantage for discerning customers.

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Ruiandsion 7506 LED Light Bulbs (BA15S Base)

Ruiandsion 7506 LED Light Bulbs (BA15S Base)

Introducing the Ruiandsion 7506 LED Light Bulbs, the perfect solution for upgrading your vehicle's lighting system. With a host of impressive features, these bulbs are designed to deliver enhanced performance and convenience. One standout feature of this 1156 LED Bulb is its Non-Polarity Design. Gone are the days of worrying about polarity sensitivity during installation. The plug-and-play functionality ensures a hassle-free experience, whether your vehicle has a negative earth or positive earth system. Installing these bulbs is as easy as it gets. Get ready to experience a clean and crisp illumination with the striking White color emitted by these bulbs. The 3030 chips incorporated in each bulb guarantee a powerful and consistent output of light. With 16 LEDs per bulb, you can expect a remarkably bright and even distribution of light across your surroundings. Durability is at the core of the Ruiandsion 7506 LED Light Bulbs. Designed to withstand extreme conditions, they operate flawlessly within a wide temperature range, from -40 to +75 degrees. Whether you're facing scorching heat or freezing cold, these bulbs will keep shining brightly, ensuring optimal visibility for your journeys.

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View all 12 replacement options for size 7506 →

This 2012 Audi S4 bulb size guide helps you verify the correct bulbs by lighting position, so you can match the right part before you buy. Whether you are replacing an exterior lamp, a cabin light, or a cargo-area bulb, checking the location on the vehicle is the easiest way to confirm fitment for your S4.

The 2012 Audi S4 uses a mix of LED and conventional bulbs depending on the lamp position, and some lighting details can vary by market, trim, and body style. Use this page as a quick reference for the most common bulb sizes on the 2012 S4, including headlights, fog lights, turn signals, license plate lights, and interior bulbs.

For best results, compare the bulb listed here with the one already installed in your car before ordering, especially if your S4 has a different lighting package or has been modified. Some positions may use LED assemblies from the factory, while others may accept halogen-style or LED replacement bulbs depending on the housing. If you are considering an aftermarket LED conversion, make sure the bulb type, connector, and housing depth are compatible, and remember that fitment can differ between sedan, wagon, and market-specific versions. Checking the installed bulb first can save time and prevent buying the wrong part.

FAQ

What bulb size does the 2012 Audi S4 use for the low beam and high beam headlights?

The 2012 Audi S4 uses D3S for both the high beam and low beam headlight bulb listing on this page.

What is the reverse light bulb size for a 2012 Audi S4?

The back up reverse light bulb is listed as 921 for the 2012 Audi S4.

What bulb does the front fog light use on the 2012 Audi S4?

The front fog light bulb is listed as H11 LED or H16 LED, depending on the vehicle setup and lighting configuration.

What bulb size is used for the rear turn signal on this model year?

The rear turn signal light bulb is listed as 7506 for the 2012 Audi S4.

What bulb size is used for the front turn signal on a 2012 Audi S4?

The front turn signal light bulb is listed as 12272NA on this page.

Are the brake lights and tail lights on the 2012 Audi S4 LED?

Yes, the brake light bulb and tail light bulb are listed as LED for this model year.

What bulb is used for the center high mount stop light?

The center high mount stop light bulb is listed as LED on the 2012 Audi S4.

What are the interior bulb sizes for the map light, glove box, trunk, and door lights?

Those interior positions are listed with 2825 or 98 for the glove box light, trunk or cargo area light, map light, interior door light, and side marker light front.

What bulb size is used for the license plate light and vanity mirror light?

Both the license plate light bulb and vanity mirror light bulb are listed as 6418.

Does the 2012 Audi S4 use the same bulb for daytime running lights?

The daytime running light bulb is listed as LED on this page, but the exact setup can vary by market and lighting package.

Why might my 2012 Audi S4 bulb size differ from this page?

Trim, body style, market region, and lighting package can all affect bulb fitment. Some cars may have different lamp assemblies or factory LED units, so it is important to verify the bulb in your vehicle before ordering.

Can I switch my 2012 Audi S4 to LED bulbs if it did not come with them?

In some positions, yes, but fitment depends on the housing, connector, and electrical compatibility. Aftermarket LED conversions may require the correct bulb shape and may not work properly in every lamp position without additional hardware.

Audi S4 Bulb Size by Year