Audi Car Replacement Light Bulb Size Guides

Whether your an expert Audi mobile electronics installer, Audi fanatic, or a novice Audi enthusiast with an Audi, a Audi light bulb size guide can save yourself a lot of time. When you need to replace the headlight, turning signal or parking light bulb on your vehicle, finding out what the replacement size you need can be a time consuming task.

If you’re installing a hid kit, hid conversion, led light bulbs, hid headlight conversion, sylvania headlight bulbs, automotive led bulbs, replacement light bulbs, car light bulbs or auto light bulbs, our automotive light bulb size guides are here to help.

The Modified Life staff have put their heads together to provide our visitors with a free replacement bulb size guide Audi A3, Audi A4, Audi A4 Avant, Audi A5, Audi A5 Cabriolet, Audi A6, Audi A7, Audi A8, Audi Allroad, Audi RS4, Audi RS6, Audi RS8, Audi R8, Audi R8 GT, Audi R8 Spyder, Audi S4, Audi S5, Audi S5 Cabriolet, Audi Q5, Audi Q7, Audi S6, Audi S8, Audi TT-S Audi TT-RS or Audi TT.

Our light bulb resource includes car light bulb sizes for headlamps, turning signals, parking lights, reverse lights, brake lights, corner lights, sidemarkers, license plate lights, interior map lights, dome lights, vanity mirror visor lights, trunk lights and more.

Feel free to use any replacement light bulb sizes that are listed on Modified Life but keep in mind that all information here is provided as is without any warranty of any kind and most of the light bulb sizes listed on our enthusiast website are submitted by the Modified Life community. Use of the replacement bulb size information is at your own risk. Always verify all bulb sizes, bulb voltage usage and bulb wattage before applying any information found here to your vehicle.

Request a Light Bulb Size Guide

If you can’t find the car light bulb sizes for your vehicle on Modified Life, please feel free to post a light bulb size guide request on this page and we’ll do our best to find you the diagram, schematic or information you need for your mobile security installation.

Audi Light Bulb Size Guides


  • Reply Andrew Gregor April 14, 2008 at 1:11 pm

    I would like a vehicle light bulb size chart regarding my 2002 Audi TT Quattro.

  • Reply ModifiedLife April 16, 2008 at 1:46 am

    Andrew, ask and you shall receive: 2002 Audi TT Car Light Bulb Size Guide

  • Reply Marko April 20, 2008 at 4:43 pm

    Any chance of getting a light bulb sizing chart for a 1999 A6 Quattro?

  • Reply ModifiedLife April 21, 2008 at 1:59 am

    Marko, ask and you shall receive: 1999 Audi A6 Car Lightbulb Size Guide

  • Reply Andy June 7, 2008 at 3:47 pm

    Is it easy to change the brake light on a 2000 TT roadster?

  • Reply ModifiedLife June 9, 2008 at 12:23 am

    Andy, you may have to remove the paneling on the hatch to get to the brake light bulb. It shouldn’t be too hard to remove. Hope this helps. Good luck.

  • Reply Elijah July 25, 2008 at 3:51 pm

    I am trying to find out what bulb size is in the Audi A4 2.0T with bi-xenon headlights.
    Your response is appreciated. Thanks

  • Reply ModifiedLife July 26, 2008 at 5:27 pm

    Elijah, please specify the year of your car. Thanks.

  • Reply Brian February 21, 2009 at 4:57 pm

    Hi, I would like to have a bulb guide for my 2007 S6. Probably the same as an A6. Trying to swap out all the incandescent bulbs to LEDs ( license plate, door puddle lights, map, dome, glove compartment, vanity.) Thank you!!

  • Reply ModifiedLife March 2, 2009 at 11:56 pm

    Brian, ask and you shall receive: 2007 Audi S6 Car Light Bulb Size Diagram

  • Reply Sharon April 13, 2009 at 12:41 pm

    Can I get a light bulb size for a 2004 Audi A6 Quattro 2.7?

  • Reply ModifiedLife April 17, 2009 at 11:45 pm

    Sharon, ask and you shall receive: 2004 Audi A6 Replacement Light Bulb Size Chart

  • Reply Tyler April 21, 2009 at 4:07 pm

    a 2009 audi a4 bulb chart would rock!!!

  • Reply ModifiedLife April 28, 2009 at 12:31 am

    Tyler, ask and you shall receive: 2009 Audi A4 with HID Auto Light Bulb Size Diagram

  • Reply Vegard July 16, 2009 at 7:20 am

    So many B5s around, wondering if you knew of / could provide me with a size chart for the A4 B5 1995-2001 :)

  • Reply susie July 23, 2009 at 11:05 am

    I’m trying to change the brake light of the driver side of my 2003 Audi TT. Please help. I removed the square carpet and plastic screws, but I can’t seem to get to the bulb because the frame is there. What can I do?????

  • Reply ModifiedLife July 29, 2009 at 2:43 am

    Susie, as far as we know, you will have to remove the tail light housing from your vehicle to change the taillight bulb. Look closely on the inside portion of the taillight. There should be several nuts holding the tail light housing to your 2003 Audi TT. Remove those nuts and pull the tail light out and change the light bulb. Reverse these instruction to re-install. Hope this helps. Good luck.

  • Reply Becky October 12, 2009 at 5:09 pm

    wondering what kind of headlight bulb my 2003 Audi A6 2.7L q. requires?

  • Reply ModifiedLife October 26, 2009 at 6:36 pm


    If you have HID headlights, please refer to: 2003 Audi A6 with HID Light Bulb Sizes
    If you have halogen headlights, please refer to: 2003 Audi A6 without HID Light Bulb Sizes

  • Reply Jon November 6, 2009 at 10:42 am

    I’m looking for the sizes of the exterior and interior bulbs for a 2000 Audi S4 (no HID) and a 2002 Audi Allroad (with HID) – thanks.

  • Reply ModifiedLife November 6, 2009 at 12:11 pm

    Jon, ask and you shall receive:

    2000 Audi S4 Lightbulb Replacement Sizes
    2002 Audi Allroad Automotive Lightbulb Sizes

  • Reply Marwan November 6, 2009 at 9:15 pm

    a 2005 Audi A6 3.2L bulb chart would be sweeeheeet!

  • Reply ModifiedLife November 9, 2009 at 5:46 pm

    Marwan, ask and you shall receive: 2005 Audi A6 Auto Light Bulb Socket Sizes

  • Reply Chris November 10, 2009 at 3:02 pm

    Any info on replacing brake light bulbs for a 2003 Audi RS6 would be very helpful. Thank you in advance.

  • Reply ModifiedLife November 23, 2009 at 11:05 pm

    Chris, ask and you shall receive: 2003 Audi RS6 Light Bulb Replacement Size Chart

  • Reply HOWARD December 27, 2009 at 1:47 pm

    I would appreciate a U.S. spec bulb application chart for a 2004 Audi A4 with HID headlights. THANK YOU.

  • Reply ModifiedLife January 4, 2010 at 11:26 pm

    Howard, ask and you shall receive: 2004 Audi A4 Light Bulb Base Sizes

  • Reply Randy April 7, 2011 at 11:17 pm

    I was wondering what size bulb is needed for a 1998 Audi a4. I am trying to replace the back brake light on the passenger side and the housing for the light doesn’t fit the bulb I have just bought. Thanks, Randy.

  • Reply ModifiedLife April 12, 2011 at 8:54 pm

    Randy, ask and you shall receive: 1998 Audi A4 Car Light Bulb Size Diagram

  • Reply JohnMichael April 18, 2011 at 9:23 am

    Could you guys get a 2002-2004 Audi A6 Avant bulb chart? Please? kthnxbye!

  • Reply ModifiedLife April 19, 2011 at 11:27 pm

    John Michael, ask and you shall receive: 2002 Audi A6 Avant Light Bulb Sizing Guide

  • Reply Tommy June 27, 2011 at 10:55 am

    Hi, I would like to have a bulb guide for my 2004 Audi A4 Sedan with Halogen Capsule. I’m trying to put in some interior LEDs (door puddle lights, map, and dome) Thanks!

  • Reply ModifiedLife July 5, 2011 at 12:07 am

    Tommy, ask and you shall receive: 2004 Audi A4 Automotive Light Bulb Size Information

  • Reply Carlos carney September 18, 2011 at 4:43 am

    2001 Audi TT quattro bulb sizes please. Not sure if 2002 are the same

  • Reply ModifiedLife September 21, 2011 at 4:25 pm

    Carlos, ask and you shall receive: 2001 Audi TT Auto Light Bulb Sizes Chart

  • Reply David Dabdoub September 25, 2011 at 2:09 pm

    I would like to have a Light Bulb Size Guide for 2 Audi models: a 1999.5 A4 quattro 2.8L V6, and a 2008 TT S-line quattro 3.6L V6 Roadster. Thank you very much, in advance!

  • Reply marcus andrews February 11, 2013 at 6:03 pm

    hi i would like to have a 2001 Audi A8 Quattro light bulb size guide. cheers marcus.

  • Reply ModifiedLife February 21, 2013 at 2:05 am

    Marcus, ask and you shall receive: 2001 Audi A8 Car Light Bulb Socket Sizes

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