2012 Audi A4 Bulb Size Chart

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Headlight Bulb High Beam and Low Beam - D3S

Fog Light Bulb Front - H11 LED

Fog Light Bulb Front - H16 LED
Center High Mount Stop Light Bulb - LED
Turn Signal Light Bulb Front - 12272NA
License Plate Light Bulb - 6418
Daytime Running Light Bulb - LED
Turn Signal Light Bulb Rear - 7506
Back Up Reverse Light Bulb - 921

Side Marker Light Bulb Front - 2825

Side Marker Light Bulb Front - 98
Stepwell Light Bulb - LED
Tail Light Bulb(with halogen headlights) - 7506R
Tail Light Bulb(with HID headlights) - LED
Vanity Mirror Light Bulb - 6418
Glove Box Light Bulb - 2825

Glove Box Light Bulb - 98
Trunk or Cargo Area Light - 2825

Trunk or Cargo Area Light - 98
Dome Light Bulb - 6411
Dome Light Bulb - 6428
Map Light Bulb - 2825

Map Light Bulb - 98
Interior Door Light Bulb - 2825

Interior Door Light Bulb - 98

2012 Audi A4 High and Low Beam bulb size - D3S

    Xenon HID Conversion Kit

  • Made in Germany

    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...

  • Best Choice

    Philips D3S Standard Authentic Xenon HID

    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 functions. With twice the amount of light, you can see potential obstacles much sooner. At highway speeds, HID lights give you up to a full...

  • See More D3S Xenon HID Conversion Kit

2012 Audi A4 Fog Light bulb size - H11 LED

    LED Lights

  • Trending

    Firehawk V49-H11 2021 New LED Bulbs

    - See The Difference - The newest Japanese CSP LED chips create +500% more brightness and +250% better night vision than your original halogen or hid bulbs. No dark spots, no shadows, no blinding oncoming traffic.

    - Most Advanced Cooling System Ever - 2mm thickened red copper, 40pcs aviation aluminum heat...

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    Philips X-tremeUltinon gen2

    The new generation of LED lights is here to make your nighttime safer and more enjoyable. The brighter they glow, the better! These bulbs will give off 250% more light than standard incandescent ones which means you can see clearly even if there's no traffic around or other cars on...

  • See More H11 LED LED Lights

2012 Audi A4 Back Up bulb size - 921

    LED Lights

  • Premium Pick

    Philips Automotive Lighting 921WLED Ultinon LED (White)

    You want bright, stylish lighting for your car but you don’t want to keep replacing burned-out bulbs. Philips Ultinon LED lights to give you high-powered, automotive-grade LEDs, with a lifetime of up to 8 years. With conventional bulbs, the more powerful the light, the shorter its lifespan. Philips Ultinon LEDs...

  • Popular

    AUXITO LED High Power 2835 15-SMD Chipsets

    – Energy-Saving, low power consumption for longer life span.
    – Suit for Socket: T15, 912, 921, 906, 904, 902, 922, W16W, just plug and play without modification. ONLY used for backup reverse lights
    – 6W per bulb, 12-16V Wide voltage, 500Ma current
    – 300% Brighter: Each bulb has 15 pieces high...

  • See More 921 LED Lights

2012 Audi A4 Side Marker Front bulb size - 2825

    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...

  • 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 LED Lights

2012 Audi A4 Glove Box bulb size - 2825

    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...

  • 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 LED Lights

2012 Audi A4 Trunk Area bulb size - 2825

    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...

  • 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 LED Lights

2012 Audi A4 Map Light bulb size - 2825

    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...

  • 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 LED Lights

2012 Audi A4 Interior Door bulb size - 2825

    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...

  • 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 LED Lights

Our all-inclusive 2012 Audi A4 bulb guide lets identify the matching lamp specs for every part of your ride in a convenient fashion. We are here to provide a helping hand for you in finding the proper reinstatement bulbs for faded lamps as well as notifying you of the unique alternatives for reA4ing your 2012 Audi A4 car with cutting-edge and more efficient LED light bulbs with a prolonged period of service. Just try to distinguish your 2012 Audi A4 trim in the table below by the year of creation as headlights bulbs sometimes deviate between former and current trims.

Your 2012 Audi A4 bulbs are fragile pieces of equipment- one small strip of tungsten inside a bulbous glass coating is what separates you from darkness, after all! No piece of technology works forever though and if your car has more than 25k miles on it then experts agree that the headlight should at least be inspected every six months for signs of wear.

So why do they break down? Any number or combination of reasons can cause failure but there tend to be three main agents behind the trouble: heat, moisture, and age. Serious conditions like corrosion require replacement but problems like filament fracture can't necessarily happen without warning ahead of time since it's impossible to predict how often (and where) the filament flexes around over time.

Remember that bulbs are largely enclosed units, meaning their environment is one of the extremes- especially under your hood with all those moving parts and high temperatures! Overheating can cause tungsten to fall away from the glass tube itself if it's got no support. That process may take months but once there's a point of no return, the bulb will go out completely.

Audi A4 Bulb Chart By Years