Audi TT 2005 Bulb Size
Bulb size chart
Looking for the right bulb sizes for your 2005 Audi TT? This page is designed to help you verify bulb fitment by lighting position, so you can match the correct bulb to each exterior and interior lamp on the car. Because the TT could be equipped with different lighting setups, checking the bulb location is the safest way to avoid buying the wrong part.
For the 2005 Audi TT, bulb type can vary by trim, lighting package, market, and body style. That means the low beam, fog lights, and some interior lamps may not be the same on every car. Use the position-specific listings here to confirm the correct bulb before replacing anything, whether you are fixing a burned-out license plate light or refreshing the headlights.
Fitment can differ between halogen and HID headlight setups, and some cars may also have LED-related components in certain positions. If your TT has halogen headlights, the low beam bulb is listed as H1, while HID-equipped cars use D2S. Aftermarket conversions can change what is installed, so do not rely only on the original factory configuration if the car has been modified. The best practice is to check the bulb already installed in your vehicle, compare it with the chart, and then buy the replacement based on the actual bulb and housing you have in hand.
FAQ
What is the low beam headlight bulb for a 2005 Audi TT with halogen headlights?
The low beam bulb for halogen headlights is H1 on the 2005 Audi TT.
What bulb does the 2005 Audi TT use for HID low beams?
For HID headlights, the low beam bulb is D2S.
What is the front turn signal bulb size on this model year?
The front turn signal light bulb is 64136.
What bulb is used for the front parking light and front side marker light?
Both the parking light bulb and the front side marker light bulb are listed as 64132.
What are the rear turn signal and reverse light bulb sizes?
Both the rear turn signal light and the back up reverse light use 7506 bulbs.
What bulb fits the brake light and tail light on the 2005 Audi TT?
The brake light bulb and the tail light bulb are both 7528.
What bulb is used for the license plate light?
The license plate light bulb is 6418.
What bulb fits the courtesy light?
The courtesy light bulb is 6418.
What bulb is listed for the glove box light?
The glove box light bulb is 2821.
What bulb sizes are used for the dome light?
The dome light bulb is listed as 6411 or 6428.
What bulb fits the map light?
The map light bulb is 64111.
What are the fog light bulb options for the front of the car?
The front fog light bulb is listed as H3C or H3, depending on the setup.
Does the 2005 Audi TT use the same bulb sizes in every market?
Not always. Trim, lighting package, market, and body style can change the bulb used in certain positions.
Why should I check the installed bulb before ordering replacements?
Because the TT may have different lighting configurations, checking the bulb already installed helps confirm the exact fit and avoids ordering the wrong size.