2003 Audi A4 Bulb Size

2003 Audi A4 Headlight Bulb Low Beam(Cabriolet, with HID headlights) (D2S)

Xenon HID Conversion Kit

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  Best Choice for 2003 Audi A4

  Philips D2S Standard Authentic Xenon

  Check out these xenon lighting solutions, the number one choice in authentic Xenon lighting. Philips Xenon HID headlight bulbs provide the same Original Equipment quality as the lights we provide to automakers around the world. Only a burning bulb made of quartz glass (filament 2650°c, glass 800°c) can resist thermal

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LED Lights

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  We Recommend

  VehiCode D2S/S2R/D2C LED Headlight Conversion Kit

  Each all-in-one LED conversion light lamp features mute fan cooling, D2S and D2R HID Ballast compacompatibility Operating voltage same as the D2 Xenon bulb, CanBus Error decoding and,99% passing the installation of automotive, car, vehicle le with OEM HID Headlights. Aftermarket LED Headlight conversion kit can perfectly replace D2S D2R D2C...

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2003 Audi A4 Headlight Bulb High Beam(Cabriolet, with halogen headlights) (H9)

LED Lights

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  #1 Bestseller

  Sealight L2 Series

  Simple installation: it’s been designed as a plug-and-play lighting solution, so does not need the help of a mechanic to fit into most cars. No pain of 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
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  Trustworthy Manufacturer

  Hikari UltraFocus H9 LED HEadlight Bulbs

  Upgrade your ride with the HIKARI UltraFocus H9 LED Headlight Bulbs. With a 500% brighter output compared to stock and a power draw of less than 32W, these bulbs use ZES LED technology to deliver an ultra bright beam and sharp cut off line, ensuring optimal visibility while avoiding blinding...
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  Trustworthy Manufacturer

  Fahren H9 LED Headlight Bulbs

  Looking to replace your dim and dated halogen headlights with something brighter and more modern? Look no further than Fahren H9 LED Headlight Bulbs! These bulbs are 600% brighter than halogens and provide a much clearer, cool white light. Installation is a breeze – it takes only 10 minutes and...

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Halogen Lights

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  Premium Pick

  PIAA 19665 H9 Xtreme White Plus

  If you’re looking for better visibility on your road, then Xtreme White Hybrid bulbs should be at the top of your list. These high-quality glasses and alloy filaments provide more contrast to what can sometimes become dim or dull light from stock lamps so that way not only do they

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Xenon HID Conversion Kit

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  Best Overall

  Morimoto Elite HID Kit System

   The Morimoto Elite Systems have earned their reputation amongst many as the aftermarket's best set of HIDs. We urge you to check out the specs below, read the reviews, and then ask yourself whether your ability to see well while driving at night is worth saving a couple of bucks....

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2003 Audi A4 Headlight Bulb Low Beam(Base, with HID headlights) (D1S)

Xenon HID Conversion Kit

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  Best Choice

  Philips D1S Standard Authentic Xenon

  Discover the xenon lighting solutions, one of the popular choices in xenon lighting. These xenon bulbs produce even more light to satisfy the most demanding drivers while maintaining their high Original Equipment quality and superior performance. Make sure to order genuine Original Equipment quality Xenon lighting from Philips, the inventor

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LED Lights

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  Premium Quality

  VehiCode D1S/S1R/D1C LED Bulbs 6000K White

  2 x Epistar LED Chips are specially designed to have focused and wider beam to fit DOT required high or low beam pattern of original D1S D1R D1C HID Xenon bulb in reflector/projector headlight or fog light house - No dark spots will be caused. YOU MUST PAY ATTENTION: 1. D1S/R LED kit...

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2003 Audi A4 Headlight Bulb Low Beam(Base, with halogen headlights) (H7)

Halogen Lights

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  Best Choice for 2003 Audi A4

  SYLVANIA H7 SilverStar Ultra

  - Cobalt blue coating provides optimal light transmission and color; - Crisp, white light with the look, feel, and attitude of high-intensity discharge. - These bulbs are DOT-compliant and 100 percent street legal. Whiter light for added clarity gives you brighter headlights, for more downroad.  
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  Premium Pick

  Philips H7 X-tremeVision Up

  Excellent for nighttime drivers -  get up to 100% more vision on the road compared to standard minimum legal requirements in low beam headlamp test results. Original equipment quality seal Maximum light output and ultimate performance
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  Best Value

  PIAA Xtreme White Plus High Performance

  Made from high-quality quartz glass and alloy filaments. The Xtreme White Hybrid bulbs are constructed for long-lasting performance. The alloy filaments are far better at dispersing heat than regular metals. Meaning these bulbs will perform at a higher output for longer amounts of time. Direct replacements for your vehicle's stock bulbs.

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LED Lights

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  Best for 2003 Audi A4

  OPT7 FluxBeam H7 LED Headlight Kit

  - 2 Colors available 5000K and 6000K - ALL new Roden LED Driver - Plug-N-Play design - you don't require any special skills to install this product and enjoy bright, clear light. 
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  Brightest Bulb

  ENGNIEK Pure White Conversion Kit

  Upgrade led conversion kit with more focus lighting beam, won't blind oncoming traffic and driver, even solid lighting beam, strong lighting penetration, without worry driving in the rain, fog, and snow. High-speed turbo fan, faster cooling, extend used life 360°lighting, better visibility, more focus lighting, and better lighting beam.
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  Best Value

  Aukee H7 50W 6000K 10000 Lumens

  Perfect for bulb upgrade: these bulbs provide a clear light central, no glare to oncoming traffic, no dark spots, High speed silent cooling fan provides strong cooling wind to help dissipate the heat generated from the LED chips, Ensuring the bulb work steadily and continuously, A fan cover is added to...

See more H7 LED Lights

Xenon HID Conversion Kit

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  Best Overall

  Morimoto Elite HID Kit System

  - Genuine Morimoto Elite HID System - Heavy Duty Double Relay Harness - Pair of High-Quality Morimoto Bulbs

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2003 Audi A4 Headlight Bulb High Beam(Base) (H7)

Halogen Lights

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  Best Choice for 2003 Audi A4

  SYLVANIA H7 SilverStar Ultra

  - Cobalt blue coating provides optimal light transmission and color; - Crisp, white light with the look, feel, and attitude of high-intensity discharge. - These bulbs are DOT-compliant and 100 percent street legal. Whiter light for added clarity gives you brighter headlights, for more downroad.  
• 

  Premium Pick

  Philips H7 X-tremeVision Up

  Excellent for nighttime drivers -  get up to 100% more vision on the road compared to standard minimum legal requirements in low beam headlamp test results. Original equipment quality seal Maximum light output and ultimate performance
• 

  Best Value

  PIAA Xtreme White Plus High Performance

  Made from high-quality quartz glass and alloy filaments. The Xtreme White Hybrid bulbs are constructed for long-lasting performance. The alloy filaments are far better at dispersing heat than regular metals. Meaning these bulbs will perform at a higher output for longer amounts of time. Direct replacements for your vehicle's stock bulbs.

See more H7 Halogen Lights

LED Lights

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  Best for 2003 Audi A4

  OPT7 FluxBeam H7 LED Headlight Kit

  - 2 Colors available 5000K and 6000K - ALL new Roden LED Driver - Plug-N-Play design - you don't require any special skills to install this product and enjoy bright, clear light. 
• 

  Brightest Bulb

  ENGNIEK Pure White Conversion Kit

  Upgrade led conversion kit with more focus lighting beam, won't blind oncoming traffic and driver, even solid lighting beam, strong lighting penetration, without worry driving in the rain, fog, and snow. High-speed turbo fan, faster cooling, extend used life 360°lighting, better visibility, more focus lighting, and better lighting beam.
• 

  Best Value

  Aukee H7 50W 6000K 10000 Lumens

  Perfect for bulb upgrade: these bulbs provide a clear light central, no glare to oncoming traffic, no dark spots, High speed silent cooling fan provides strong cooling wind to help dissipate the heat generated from the LED chips, Ensuring the bulb work steadily and continuously, A fan cover is added to...

See more H7 LED Lights

Xenon HID Conversion Kit

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  Best Overall

  Morimoto Elite HID Kit System

  - Genuine Morimoto Elite HID System - Heavy Duty Double Relay Harness - Pair of High-Quality Morimoto Bulbs

See more H7 Xenon HID Conversion Kit

2003 Audi A4 Parking Light Bulb (2825)

LED Lights

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  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. 
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  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

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2003 Audi A4 Daytime Running Light Bulb (2825)

LED Lights

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  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. 
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  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

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2003 Audi A4 Stepwell Light Bulb (2825)

LED Lights

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  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. 
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  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

2003 Audi A4 Glove Box Light Bulb (2825)

LED Lights

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  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. 
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  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

2003 Audi A4 Interior Door Light Bulb (2825)

LED Lights

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  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. 
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  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

2003 Audi A4 Courtesy Light Bulb(Base) (2825)

LED Lights

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  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. 
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  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

2003 Audi A4 Trunk or Cargo Area Light(Cabriolet) (2825)

LED Lights

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  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. 
• 

  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