Audi A5 2021 Bulb Size

Bulb size chart

Fog Light Bulb Front - H8 LED
Headlight Bulb High Beam - H16 LED, H8 LED
Headlight Bulb Low Beam - H16 LED, H8 LED
Cornering Light Bulb - H11
Engine Compartment Light Bulb - 578
Glove Box Light Bulb - 194
Interior Door Light Bulb - 194

H8 LED Bulbs

Used for: Fog Light Bulb Front, Headlight Bulb High Beam, Headlight Bulb Low Beam

Sealight L2 Series

Sealight L2 Series

Prevents blinding on-coming vehicles: these light bulbs utilize the super high quality and most modern technology LED chips. This technology helps you get a LED array similar to the filament inside of an original halogen bulb. This creates a nice cut line on top of the beam. No pain in replacing bulbs often: a maximum level of heat dissipation is achieved when they are in use thanks to the ball-bearing cooling fan, the copper thermal heat sink, and the high-density aluminum body, ensuring up to 50,000 hrs lifespan.

$27.94

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View all 4 replacement options for size H8 LED →

H16 LED Bulbs

Used for: Headlight Bulb High Beam, Headlight Bulb Low Beam

View all 5 replacement options for size H16 LED →

H11 Bulbs

Used for: Cornering Light Bulb

PIAA 15211 H11 Xtreme White Plus

PIAA 15211 H11 Xtreme White Plus

Xtreme White Hybrid bulbs are worth it if you want the lightest possible. They're brighter and provide better contrast versus stock, allowing drivers to see farther with greater safety on dark roads or high traffic areas like city streets at night time - because these lights don't have any filters that would interfere with their visibility! Made from quality materials such as quartz glass alongside our special alloy filaments which reflect heat much more efficiently than common metals do; this means they will last longer without getting too hot and eventually cracking under pressure (which can lead us to an accident).

$73.19

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View all 24 replacement options for size H11 →

578 Bulbs

Used for: Engine Compartment Light Bulb

KATUR Festoon 578 (C5W) Led Bulbs

KATUR Festoon 578 (C5W) Led Bulbs

The KATUR Festoon 578 (C5W) Led Bulbs are a great choice for those looking to upgrade their car's lighting. With lower power consumption and a longer lifespan, these bulbs are more efficient and long-lasting than traditional incandescent bulbs. The fast light response and safe design of these bulbs make them a reliable choice for drivers. The high power 3014 chips and 180-degree illumination angle ensure there are no blind spots and provide bright, renewed lighting for your car. All LED Series products come in a static sealed bag for long-term preservation and are error-free with CANBUS technology. Choose the KATUR Festoon 578 (C5W) Led Bulbs for a brighter and more efficient car lighting solution.

$14.99

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View all 12 replacement options for size 578 →

194 Bulbs

Used for: Glove Box Light Bulb, Interior Door Light Bulb

View all 21 replacement options for size 194 →

This page covers bulb fitment for the 2021 Audi A5 and is organized by lighting position so you can quickly verify the correct bulb size before you buy. Because the A5 can use different lighting setups depending on trim, market, and body style, checking the bulb location is the safest way to match the right replacement.

Use the chart on this page to compare common interior, exterior, and engine bay bulbs for the 2021 Audi A5. It is especially helpful when you are replacing a single bulb and want to confirm whether the part belongs in the glove box, door area, headlight, fog light, or another specific location.

Fitment can vary on the 2021 Audi A5 depending on the trim level, lighting package, and whether the car uses halogen or LED equipment in a given position. That matters most for headlight and fog light applications, where factory LED systems and aftermarket conversions may change the bulb style or make the housing non-serviceable in the usual way. Before ordering, check the bulb currently installed in the vehicle and compare it with the chart, since the same model year can use different bulbs by market and body style. If a previous owner converted the lighting setup, the installed bulb may not match the original factory specification.

FAQ

What bulb size does the 2021 Audi A5 use for the glove box light?

The glove box light bulb listed for the 2021 Audi A5 is 194.

What bulb size does the 2021 Audi A5 use for the interior door light?

The interior door light bulb listed for the 2021 Audi A5 is 194.

What bulb size is used for the front fog light on the 2021 Audi A5?

The front fog light bulb listed for the 2021 Audi A5 is H8 LED.

What bulb sizes are listed for the high beam on the 2021 Audi A5?

The high beam bulb options listed for the 2021 Audi A5 are H16 LED and H8 LED.

What bulb sizes are listed for the low beam on the 2021 Audi A5?

The low beam bulb options listed for the 2021 Audi A5 are H16 LED and H8 LED.

What bulb size is listed for the cornering light on the 2021 Audi A5?

The cornering light bulb listed for the 2021 Audi A5 is H11.

What bulb size is used for the engine compartment light on the 2021 Audi A5?

The engine compartment light bulb listed for the 2021 Audi A5 is 578.

Why does the 2021 Audi A5 page show more than one bulb option for some headlights?

Audi used different lighting configurations on the 2021 A5 depending on trim, package, and market. That is why the chart may list more than one bulb option for the same position.

How do I know which bulb size to buy for my 2021 Audi A5?

Start by matching the bulb to the exact lighting position on the chart, then compare it with the bulb currently installed in the car. This is the best way to avoid ordering the wrong part when the vehicle has different equipment by trim or market.

Can I use a different bulb type if my 2021 Audi A5 has LED lighting?

Not always. Some LED-equipped lighting systems use a different bulb style, while others may be integrated and not meant for simple bulb replacement. Always verify the installed bulb and the housing design before buying.

Do trim levels affect bulb fitment on the 2021 Audi A5?

Yes. Trim level, lighting package, and body style can all affect bulb fitment on the 2021 Audi A5, especially for exterior lighting positions.

Should I check the old bulb before ordering a replacement for my 2021 Audi A5?

Yes. Checking the installed bulb before purchase is strongly recommended, especially if the car has been modified or if you are unsure whether the lighting setup is factory original.

Audi A5 Bulb Size by Year