2020 Audi A3 Headlight Bulb Size

The headlights of the 2020 Audi A3 have two different bulb sizes: H16 LED for high beams and D3S for low beams.

Using the 2020 Audi A3 bulb chart below, you can quickly identify the correct replacement lamp for all 11 positions of its lighting system.


Fog Light Bulb Front - H8 LED
LED
Headlight Bulb High Beam - H16 LED
Headlight Bulb High Beam - H8 LED
LED
Headlight Bulb Low Beam - D3S
Brake Light Bulb - 7440
LED
Tail Light Bulb - 921
LED
Turn Signal Light Bulb Rear - 921
Glove Box Light Bulb - 194
Trunk or Cargo Area Light - 194
Dome Light Bulb - 194
Map Light Bulb - 194

Replacement Bulb Size for the 2020 Audi A3

Considering an upgrade from the Halogen to LED or HID headlights? Find below aftermarket replacements for OEM bulbs compatible with the 2020 Audi A3's housing. Note that you may need additional equipment to install LED or Xenon bulbs despite the correct bulb size of the lamp.

2020 Audi A3 Fog Light bulb size - H8 LED

LED Lights

- Brightest Bulbs Under $200 - The Firehawk V49-H8 2021 LED Bulbs are the brightest and most advanced LED bulbs on the market. With 500%...
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These LED retrofit lights are an innovative, long-lasting way to bring more visibility and safety for drivers on the road. With 250% brighter light than...
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See More H8 LED LED Lights

2020 Audi A3 High Beam bulb size - H8 LED

LED Lights

- Brightest Bulbs Under $200 - The Firehawk V49-H8 2021 LED Bulbs are the brightest and most advanced LED bulbs on the market. With 500%...
Product review

Buy

These LED retrofit lights are an innovative, long-lasting way to bring more visibility and safety for drivers on the road. With 250% brighter light than...
Product review

Buy
See More H8 LED LED Lights

2020 Audi A3 Low Beam bulb size - D3S

LED Lights

Looking for an LED conversion kit that will perfectly replace your OEM D3S D3R D3C Xenon bulb without changing any wiring? Look no further than...
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Please note before purchasing:

1. These bulbs can only replace factory D1S D1R D3S D3R HID bulbs.

2. Not plug-and-play installation. This product includes two adapter wires,...
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See More D3S LED Lights

Xenon HID Conversion Kit

 Extremely Long Life with precise light distribution & consistent performance - can efficiently work for 4000 hours.  All HID lights discolor to get whiter/bluer over...
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Xenon HID lights deliver better light but consume less power. This offers drivers enhanced visibility while allowing the vehicle to save electrical power for other...
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See More D3S Xenon HID Conversion Kit

2020 Audi A3 Brake bulb size - 7440

LED Lights

  • Standard 7440 Base can replace Stock Bulbs or Incandescents such as 7440NA 7441 992. Well matched with the original Incandescence lights. Easy plug-and-play installation - just...

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2020 Audi A3 Tail Light bulb size - 921

LED Lights

  • 300% Brighter - 921 led bulb has 3030 SMD LED chips. You can see farther and clearer when reversing at night.
  • Easy Installation - 1:1 design...

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See 921 LED Lights

Popular Headlights


Explore the custom LED headlight kits that will improve the visibility ahead of the 2020 Audi A3 at night. Made of quality materials, bright and long-lasting, they would be a perfect alternative to old or dimmed factory headlights. Explore more headlights for Audi A3 2020 here.


Popular Taillights


A pair of custom tail lights is necessary if the people behind your 2020 Audi A3 are to be impressed. Consider direct bolt-on replacements powered by LED instead of worn-out or damaged tail lights.




Audi A3 2020 bulb size chart specifies the recommended bulb part numbers and types for all positions of its lighting system, like headlights, fog lights, brake lights, side markers, etc.

If you want to upgrade the headlights, the aftermarket bulb you select has to be the exact size your Audi A3 2020 requires to fit into the housing and match the wattage and voltage specifications.

LightningLab project pulls information about the 2020 Audi A3 bulb sizes from the vehicle's manual and leading automotive lighting suppliers. All the data is classified and fact-checked by our editorial team.

The following chart with the 2020 Audi A3 bulb sizes is provided for informative purposes only. Consult the owner's manual or contact the dealership to double-check the correct bulb type, wattage, voltage, and whether it requires any additional equipment or modifications to be installed on the specific 2020 Audi A3 trim.

Ensure the bulb is "DOT" compliant to avoid legal issues.


FAQs

How to replace the 2020 Audi A3 headlight bulb?

First things first, you'll need the right 2020 Audi A3 bulb size. Of course, you may consult the owner's manual, but let's be honest, that's as dull. Instead, just look at the chart above or remove the old bulb to see its size. It's not rocket science; it's more like... bulb science.

Follow the simple step-by-step instructions:

  1. 1) Park the 2020 Audi A3 on an even surface and turn off the ignition.
  2. 2) Open the hood and pop it up.
  3. 3) Pull the lock bar up and out of the clip to fix the hood.
  4. 4) Identify the back of the headlight assembly where the bulb is housed.
  5. 5) You may need to remove other components to access it.
  6. 6) Locate the electrical connector at the back of the headlight compartment.
  7. 7) Press down on the locking tab and pull the connector away from the bulb.
  8. 8) Remove the Old Bulb. Depending on your trim, you may need to:
    1. a) Unscrew a retaining ring
    2. b) Unclip a metal pin
    3. c) Rotate the bulb counterclockwise
  9. 9) Insert the new bulb without touching the glass.
  10. 10) Plug the electrical connector back, making sure it clicks into place.
  11. 11) Turn on the headlights to test the new bulb.
  12. 12) You may need to aim your headlights.



Reviewed by Brent Ordway

Brent Ordway is an ASE-certified car technician. He has been working on cars since he was a teenager and loved helping people keep their vehicles running smoothly. Brent's skills as a mechanic are unrivaled. In 2022, he earned his place on the list of winners for the ASE Master Automobile Technician of the Year award.

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Audi A3 Bulb Chart By Years

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