Audi TT 2008 Bulb Size
Bulb size chart
This page helps you verify bulb sizes for the 2008 Audi TT by lighting position, so you can match the correct bulb before you buy. Because Audi used different lighting setups across trims, body styles, and markets, the right fit can depend on whether your TT has HID headlights, halogen headlights, or an optional lighting package.
Use the bulb chart to identify common exterior and interior locations such as the headlight, fog light, brake light, tail light, reverse light, license plate light, map light, glove box light, and trunk or cargo area light. Checking by position is the easiest way to avoid ordering the wrong bulb for your 2008 Audi TT.
Fitment can vary on the 2008 Audi TT depending on trim, package, and market, so always compare the bulb listed for your exact lighting setup. This matters especially for halogen versus HID headlight cars, since some front parking, side marker, and turn signal bulbs differ between those versions. If you are considering an aftermarket LED conversion, make sure the bulb base, polarity, and physical clearance are compatible, and remember that some LED replacements may need resistors or CAN-bus-friendly design to prevent warnings or fast flashing. Before purchasing, it is smart to remove the installed bulb and confirm the number printed on the base, because that is the most reliable way to verify fitment on your specific car.
FAQ
What bulb does the 2008 Audi TT use for the high and low beam headlights?
The listed headlight bulb for the 2008 Audi TT is D1S. This applies to the high beam and low beam entry shown on the page, so confirm your car’s lighting package before ordering.
Which bulb fits the front turn signal on a 2008 Audi TT with HID headlights?
For 2008 Audi TT models with HID headlights, the front turn signal bulb is listed as 7507.
Which bulb fits the front turn signal on a 2008 Audi TT with halogen headlights?
For 2008 Audi TT models with halogen headlights, the front turn signal bulb is listed as 64136.
What is the rear turn signal bulb size on the 2008 Audi TT?
The rear turn signal bulb is listed as 921.
What bulb is used for the reverse lights on the 2008 Audi TT?
The back up reverse light bulb is listed as 921.
What are the fog light bulb options for the 2008 Audi TT?
The front fog light bulb listing shows H11 LED and H16 LED. Check the socket and the bulb already installed in your car before buying, since the correct choice can depend on the exact setup.
What bulb fits the license plate lights on the 2008 Audi TT?
The license plate light bulb is listed as 6418.
What bulb is used for the courtesy lights on the 2008 Audi TT?
The courtesy light bulb is listed as 6418.
Which bulb fits the glove box, trunk, and map lights?
Those interior locations are all listed with 2825 and 98 bulb types. Verify the installed bulb if you want to be certain which one your car uses.
What is the brake light bulb size on the 2008 Audi TT?
The brake light bulb is listed as 7506R.
What is the tail light bulb size on the 2008 Audi TT?
The tail light bulb is listed as 7506R.
Do parking light and side marker bulb sizes change on the 2008 Audi TT?
Yes. With HID headlights, the parking light and front side marker bulb is listed as 64132. With halogen headlights, the parking light and front side marker bulb is listed as 2827.
What bulb is used for the daytime running lights on the 2008 Audi TT?
The daytime running light bulb is listed as 7506.
Why should I check my installed bulb before ordering replacements for a 2008 Audi TT?
Because trim and lighting package differences can change the correct bulb, especially on front lighting. Checking the installed bulb helps confirm the exact fit and reduces the chance of ordering the wrong part.