2004 Audi TT Bulb Sizes
Quick answer: here is every bulb size for the 2004 Audi TT, position by position.
2004 Audi TT bulb size chart
| Position | Bulb size (tap to shop) |
|---|---|
| Glove Box Light Bulb | 2821 |
| Trunk or Cargo Area Light | 2825 |
| Trunk or Cargo Area Light | 98 |
| Dome Light Bulb | 6411 |
| Dome Light Bulb | 6428 |
| Map Light Bulb | 64111 |
| Courtesy Light Bulb | 6418 |
Tap any bulb size to see it on Amazon. Trims and mid-year changes can differ, so pull the old bulb and match the number on its base before you order.
Which bulb should I buy?
- Just need it working again? Buy the standard halogen in the same size. It's cheap, it's legal everywhere, and it takes five minutes.
- Want to see better at night without messing with anything? Step up to a brighter halogen. Same plug, more light, no wiring.
- Want the white, modern look? Go LED. Great for fog, reverse, plate and interior lights. For headlights, LED bulbs in a housing built for halogen can throw glare, so aim them after you install and check your state's rules before running them on the street.
Our picks by bulb size
2821 (glove box light)
- Top pick: Hella 2821 bulb (2 pack)
2825 (trunk or cargo area light)
- Halogen: Sylvania 194 SilverStar (2 bulbs)
- LED: LASFIT 194 LED (2 pcs)
98 (trunk or cargo area light)
- Top pick: #89/98 miniature LED replacement bulb
6411 (dome light)
- Top pick: Lanuovx 6411 festoon bulbs (10 pack)
6428 (dome light)
- Top pick: 31mm festoon LED (fits 6428/DE3175)
64111 (map light)
- Top pick: PHINLION BA9S LED bulbs (2 pack)
6418 (courtesy light)
- Top pick: AUXLIGHT 6418/6411 36mm festoon LED
For brake lights and turn signals, match the LED color to the lens: red behind a red lens, amber for turn signals.
While you're in there
- Cloudy headlights? New bulbs won't fix a yellowed lens. A replacement housing makes a bigger difference than any bulb: see Audi TT headlights at NTXGlow.
- Tail lights faded or cracked? Audi TT tail lights at NTXGlow.
Common questions
Can I put LED bulbs in a 2004 Audi TT?
Most sizes on this vehicle have a plug-in LED version. Fog, license plate and interior lights are the easy wins. For headlights, aim them after you install and check your local laws first.
How do I make sure I'm buying the right size?
Pull the old bulb and read the number stamped on its base, or check the bulb chart in your owner's manual. Trims and mid-year changes can differ from any chart, including this one.
Other Audi TT years
2000 Audi TT bulb sizes · 2001 Audi TT bulb sizes · 2002 Audi TT bulb sizes · 2003 Audi TT bulb sizes · 2005 Audi TT bulb sizes · 2006 Audi TT bulb sizes
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