Audi A4 2015 Bulb Size

Bulb size chart

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 - LED
Parking Light Bulb - LED
Side Marker Light Bulb Front - LED
Side Marker Light Bulb Rear - LED
Stepwell Light Bulb - LED
Tail Light Bulb - LED
Turn Signal Light Bulb Front - 64132
Turn Signal Light Bulb Rear - LED
Dome Light Bulb - 6411, 6428
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

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 →

64132 Bulbs

Used for: Turn Signal Light Bulb Front

VEHICODE White 64132 LED Bulbs

VEHICODE White 64132 LED Bulbs

Introducing the VEHICODE White 64132 LED Bulbs, the perfect lighting solution for a wide range of applications. With advanced features and reliable performance, these bulbs are designed to enhance your driving experience. Equipped with 5 high-power SMD-3030 LED chips, these bulbs deliver impressive brightness, producing 370 lumens per bulb. With an output wattage of 1.7W per bulb, they provide efficient lighting while conserving energy. The working voltage range of 10-30V ensures compatibility with various vehicles. Experience the crisp and vibrant illumination of the 6000K-6500K white color temperature, creating a modern and stylish look for your vehicle. These bulbs boast an exceptional lifespan of up to 30,000 hours, ensuring long-lasting reliability and reduced maintenance.

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View all 11 replacement options for size 64132 →

6411 Bulbs

Used for: Dome Light Bulb

Wiseshine 6411 LED Dome Light Bulb

Wiseshine 6411 LED Dome Light Bulb

Introducing theWiseshine 6411 LED Dome Light Bulb, the ultimate lighting solution for a variety of applications. This top-quality bulb is engineered to provide outstanding performance, reliability, and longevity. Wiseshine 6411 LED Dome Light Bulb emits a natural white light with a color temperature of 4500k. This color creates a pleasant and soothing illumination that enhances visibility and creates a welcoming atmosphere. Each pack contains 6pcs of these high-quality LED bulbs, ensuring you have an ample supply to meet your lighting needs. Whether you're looking to upgrade your dome lights, reading lights, map lights, glove box lights, cargo lights, trunk lights, or license plate lights, this pack has you covered. Designed to operate with DC 24V input, this bulb is suitable for a wide range of vehicles and applications. Whether you need to replace bulbs in your car, truck, or boat, this Festoon LED bulb is compatible with your power source. Rest assured that this bulb is built to last. With a two-year quality assurance guarantee, you can trust in its reliability and performance. Wiseshine 6411 LED Dome Light Bulb is engineered with top-quality components, including 6 super bright chipsets 3030 1-watt LEDs. Each individual light produces an impressive 130-140 lumens, ensuring a bright and focused illumination.

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KATUR 6411 White LED Bulbs 39 mm

KATUR 6411 White LED Bulbs 39 mm

It's time to shed some light on your automotive life with the KATUR 6411 White LED Bulbs 39 mm. These little wonders are like a shining beacon of efficiency, delivering lower power consumption and a longer lifespan to keep you glowing for miles on end. With their lightning-fast light response and impeccable safety record, you'll never miss a beat on the road. Thanks to the high power 5630 chips and a mesmerizing 180-degree illumination angle, there won't be a blind spot in sight–prepare to witness your car basking in a radiant, renewed aura. And here's the cherry on top: installation is a breeze, taking a mere 5 minutes of your time, simply plug and play without causing any harm to your precious ride. Illuminate your world and embrace the brilliance of the KATUR 6411 White LED Bulbs 39 mm!

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View all 8 replacement options for size 6411 →

6428 Bulbs

Used for: Dome Light Bulb

KATUR 6428 LED Interior Light Bulb

KATUR 6428 LED Interior Light Bulb

6500K Xenon White Experience the brilliant 6500K Daytime White brightness instantly with KaTur 31mm Festoon C5W LED Bulb. No lag, just immediate illumination. High Power 5630 Chips Enjoy the perfect beam patterns of the super bright 5630 Chips in the LED Front Rear Sidemarker Light. Say goodbye to dark spots, short beams, and scattered light. CanBus Error-Free Equipped with a CANBUS system, these bulbs work seamlessly without the need for additional resistors. Waterproof and reliable in any weather conditions, providing excellent visibility while driving. Easy Installation Install in just 5 minutes with a plug-and-play design. Non-destructive installation for Interior (Map, Dome, Cargo, Courtesy) Light, License Plate Light, Parking Light, Turn Signal Light, Corner Light, Side Marker Light, Tail Light, and Backup Lights. Suitable for cars, trucks, motorcycles, scooters, trailers, RVs, boats, and more.

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View all 11 replacement options for size 6428 →

2825 Bulbs

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

View all 10 replacement options for size 98 →

6418 Bulbs

Used for: 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 →

This page helps you find the right bulb sizes for the 2015 Audi A4 by lighting position, so you can replace the correct lamp without guessing. Whether you are changing an exterior signal, an interior courtesy light, or the headlight bulb, the goal is to match the bulb to the exact location on the vehicle.

Because Audi A4 lighting can vary by trim, market, and body style, it is important to verify fitment before ordering. Use the bulb chart on this page to compare each position, including headlights, brake lights, license plate lights, and cabin bulbs, so you can shop with more confidence.

Fitment can differ between halogen and LED-equipped versions, and some cars may have different bulbs depending on factory lighting packages or regional specifications. If you are considering an aftermarket LED conversion, make sure the replacement bulb is compatible with the housing, connector, and any warning-light monitoring system. The safest approach is to check the bulb currently installed in your 2015 Audi A4 before buying, especially for exterior lamps where previous owners may have already made changes.

FAQ

What bulb does the 2015 Audi A4 use for the low beam and high beam headlights?

The listed headlight bulb for both high beam and low beam is D3S. Always confirm your current setup, since lighting equipment can vary by market and package.

What is the reverse light bulb size on a 2015 Audi A4?

The back up reverse light bulb is 921. If your car has been modified, compare the installed bulb to the chart before ordering.

Which bulb fits the front turn signal on a 2015 Audi A4?

The front turn signal bulb is 64132. This is a good example of why checking by position matters, since front and rear signal bulbs are not always the same.

What bulb is used for the rear turn signal?

The rear turn signal bulb is listed as LED on this page. Because the rear lighting assembly can vary, verify the exact lamp style on your vehicle before replacement.

Are the brake lights and tail lights on the 2015 Audi A4 LED?

Yes, the chart lists both the brake light bulb and tail light bulb as LED. That means you should match the correct LED-equipped position rather than assuming a standard replaceable filament bulb.

What bulb does the license plate light use?

The license plate light bulb is listed as LED. This is a common exterior bulb to replace, but the exact housing and connector should still be checked.

What bulb size is used for the map lights and other small interior lights?

The map light bulb, interior door light bulb, glove box light bulb, and trunk or cargo area light are listed as 2825 or 98. These are shared across several interior positions on this page.

What bulb fits the dome light in the 2015 Audi A4?

The dome light bulb is listed as 6411 or 6428. If your dome light has been changed before, confirm the installed bulb number to avoid ordering the wrong one.

What bulb is used in the vanity mirror light?

The vanity mirror light bulb is 6418. This is a separate fitment from the dome and map lights, so it is worth checking each interior location individually.

Do trim level and lighting package affect bulb fitment on the 2015 Audi A4?

Yes. Trim, lighting package, market, and body style can all affect bulb fitment. The same model year may use different bulbs depending on factory equipment.

Can I replace the factory bulbs with aftermarket LEDs?

Yes, but compatibility matters. Aftermarket LED upgrades should match the housing, connector, and any bulb monitoring system, and some installations may require additional parts or coding.

What is the best way to confirm the correct bulb before buying?

Use the bulb chart on this page, then compare it with the bulb currently installed in your 2015 Audi A4. Checking the old bulb is the most reliable way to confirm fitment when the vehicle has been modified or the lighting package is unknown.

Audi A4 Bulb Size by Year