2015 Audi A3 Bulb Size

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Bulbs Chart

Headlight Bulb High Beam and Low Beam - D3S

Parking Light Bulb(with halogen headlights) - 2825

Tail Light Bulb(with halogen headlights) - 921

Glove Box Light Bulb - 2825

Trunk or Cargo Area Light - 2825

Dome Light Bulb - 2825

Interior Door Light Bulb - 2825


2015 Audi A3 Headlight Bulb High Beam and Low Beam (D3S)

    Xenon HID Conversion Kit

  • Best Choice, D3C

    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...

See more D3S Xenon HID Conversion Kit

2015 Audi A3 Parking Light Bulb(with halogen headlights) (2825)

    Halogen Lights

  • Premium Pick

    Sylvania White Mini Bulb

    SYLVANIA LED bulbs deliver a balanced combination of performance and value. Tuners and auto enthusiasts alike can replace their vehicle’s incandescent lights with a bright and long-lasting LED bulb for a unique and modern look simply and cost-effectively. 

See more 2825 Halogen Lights

    LED Lights

  • For Car Dome, Map Door, Courtesy, License Plate Lights

    Marsauto LED Light Bulb 6000K Replacement Bulbs

    – Better beam pattern: each bulb has 5 pcs high power SMD led, color temperature: 6000K(xenon white), voltage: 12V – No polarity no flip: it is truly no polarity, can light on two sides, no need more modification or flip, plug and play, easy install within 5 minutes.  Products with electrical plugs

See more 2825 LED Lights

2015 Audi A3 Tail Light Bulb(with halogen headlights) (921)

    Halogen Lights

  • Best Choice

    Philips 12789LPB2 Bright White Vision

    Replace your standard car lights with our robust Philips Vision LEDs that deliver dynamic lighting for your vehicle, both inside and out. The innovative design and unmatched performance of Philips Vision LEDs are available for brake and taillights, backup lights, dome lights, and license plate lights. These bulbs are covered

See more 921 Halogen Lights

2015 Audi A3 Glove Box Light Bulb (2825)

    Halogen Lights

  • Premium Pick

    Sylvania White Mini Bulb

    SYLVANIA LED bulbs deliver a balanced combination of performance and value. Tuners and auto enthusiasts alike can replace their vehicle’s incandescent lights with a bright and long-lasting LED bulb for a unique and modern look simply and cost-effectively. 

See more 2825 Halogen Lights

    LED Lights

  • For Car Dome, Map Door, Courtesy, License Plate Lights

    Marsauto LED Light Bulb 6000K Replacement Bulbs

    – Better beam pattern: each bulb has 5 pcs high power SMD led, color temperature: 6000K(xenon white), voltage: 12V – No polarity no flip: it is truly no polarity, can light on two sides, no need more modification or flip, plug and play, easy install within 5 minutes.  Products with electrical plugs

See more 2825 LED Lights

2015 Audi A3 Trunk or Cargo Area Light (2825)

    Halogen Lights

  • Premium Pick

    Sylvania White Mini Bulb

    SYLVANIA LED bulbs deliver a balanced combination of performance and value. Tuners and auto enthusiasts alike can replace their vehicle’s incandescent lights with a bright and long-lasting LED bulb for a unique and modern look simply and cost-effectively. 

See more 2825 Halogen Lights

    LED Lights

  • For Car Dome, Map Door, Courtesy, License Plate Lights

    Marsauto LED Light Bulb 6000K Replacement Bulbs

    – Better beam pattern: each bulb has 5 pcs high power SMD led, color temperature: 6000K(xenon white), voltage: 12V – No polarity no flip: it is truly no polarity, can light on two sides, no need more modification or flip, plug and play, easy install within 5 minutes.  Products with electrical plugs

See more 2825 LED Lights

2015 Audi A3 Dome Light Bulb (2825)

    Halogen Lights

  • Premium Pick

    Sylvania White Mini Bulb

    SYLVANIA LED bulbs deliver a balanced combination of performance and value. Tuners and auto enthusiasts alike can replace their vehicle’s incandescent lights with a bright and long-lasting LED bulb for a unique and modern look simply and cost-effectively. 

See more 2825 Halogen Lights

    LED Lights

  • For Car Dome, Map Door, Courtesy, License Plate Lights

    Marsauto LED Light Bulb 6000K Replacement Bulbs

    – Better beam pattern: each bulb has 5 pcs high power SMD led, color temperature: 6000K(xenon white), voltage: 12V – No polarity no flip: it is truly no polarity, can light on two sides, no need more modification or flip, plug and play, easy install within 5 minutes.  Products with electrical plugs

See more 2825 LED Lights

2015 Audi A3 Interior Door Light Bulb (2825)

    Halogen Lights

  • Premium Pick

    Sylvania White Mini Bulb

    SYLVANIA LED bulbs deliver a balanced combination of performance and value. Tuners and auto enthusiasts alike can replace their vehicle’s incandescent lights with a bright and long-lasting LED bulb for a unique and modern look simply and cost-effectively. 

See more 2825 Halogen Lights

    LED Lights

  • For Car Dome, Map Door, Courtesy, License Plate Lights

    Marsauto LED Light Bulb 6000K Replacement Bulbs

    – Better beam pattern: each bulb has 5 pcs high power SMD led, color temperature: 6000K(xenon white), voltage: 12V – No polarity no flip: it is truly no polarity, can light on two sides, no need more modification or flip, plug and play, easy install within 5 minutes.  Products with electrical plugs

See more 2825 LED Lights

2015 Audi A3 Headlights

2015 Audi A3 Tail Lights

Audi A3 Bulb Size By Years

Misconception: a single bulb size fits every light on a 2015 Audi A3. It seems true because many cars use similar bulbs, and aftermarket parts lump sizes together. Think of it as a mental model that simplifies life, but it can mislead. The truth is the A3 uses several specific sizes for headlights, fogs, turn signals, and interior lights. A quick rule of thumb: check the exact lamp housing and consult the chart rather than guessing. Implications are practical — the right fit avoids dim lights, blown fuses, or extra returns. Quick tests include comparing the old bulb part number, using the chart to match both function and fit, and gently testing the new lamp before final reassembly. Quick recap: accurate match saves time and money. Affiliate note: links on this page may earn a small commission if you buy through them, at no extra cost to you.

2015 Audi A3 specs
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