Audi TT 2013 Bulb Size
Bulb size chart
This page helps you verify the bulb sizes for the 2013 Audi TT by lighting position, so you can match the correct replacement before you buy. Whether you are changing an exterior lamp or a small interior bulb, checking the location first makes it easier to find the right fit for your TT.
The 2013 Audi TT uses a mix of LED, halogen, and HID-style lighting depending on the lamp position and equipment level. Because trim and lighting package can vary by market and body style, it is smart to confirm the bulb type for each specific light on your car rather than assuming every TT uses the same setup.
For best results, compare this bulb chart with the bulb already installed in your vehicle, especially if your TT has been modified or if you are unsure whether it came with factory LED lighting. Some positions may use LED modules while others use replaceable bulbs, and fog light fitment can differ between H11 LED and H16 LED applications. If you are converting from halogen to LED aftermarket bulbs, make sure the new bulb matches the socket, polarity, and available space inside the housing. Before ordering, remove the old bulb and check the base style and markings whenever possible, since that is the most reliable way to avoid a mismatch on a 2013 Audi TT.
FAQ
What bulb does the 2013 Audi TT use for the low beam and high beam headlights?
The listed headlight bulb for both high beam and low beam is D1S. This applies to the 2013 Audi TT on the page, but always confirm your specific trim and lighting package before ordering.
What is the front turn signal bulb size on a 2013 Audi TT?
The front turn signal bulb is listed as 7507. If your TT has been changed with aftermarket lighting, verify the installed bulb before replacing it.
What bulb fits the rear turn signal on the 2013 Audi TT?
The rear turn signal bulb is 921. This is the bulb size shown for the rear indicator position on the 2013 Audi TT.
What bulb is used for the reverse light?
The back up reverse light bulb is 921. That makes the rear turn signal and reverse light the same bulb size on this page, but they are used in different locations.
What are the brake light and tail light bulb sizes?
Both the brake light bulb and the tail light bulb are listed as 7506R. If one side is out, it is a good idea to replace bulbs in pairs when the bulbs are the same age.
Does the 2013 Audi TT use LED bulbs in some exterior positions?
Yes. The chart lists LED lighting for the center high mount stop light, license plate light, parking light, and daytime running light. Those positions may use LED modules rather than standard replaceable bulbs.
What bulb size is used for the fog lights?
The front fog light bulb is listed as H11 LED or H16 LED. The correct choice can depend on the exact trim, market, or lighting package, so check the existing bulb or housing before buying.
What bulb fits the glove box, map lights, courtesy lights, and trunk light?
Those interior positions are listed as 2825 or 98. The same bulb size is shown for the glove box light, trunk or cargo area light, map light, and courtesy light.
What bulb is used for the vanity mirror light?
The vanity mirror light bulb is listed as 6418. If your mirror lamp is dim or burned out, confirm the base style before replacing it.
Why might my 2013 Audi TT bulb size be different from another TT I found online?
Trim and lighting package can vary by market and body style. Some 2013 Audi TT models may use different lighting equipment, so another car may not match your exact setup even if it is the same year and model.
Can I replace factory halogen bulbs with LED bulbs on my 2013 Audi TT?
Yes, aftermarket LED conversions are common, but fitment is not always plug-and-play. Check socket type, polarity, beam pattern, and available space in the housing before buying LED replacements.
What is the best way to confirm the correct bulb before ordering?
The safest method is to check the bulb already installed in your TT and compare it with the chart on this page. Reading the bulb number directly from the old bulb helps prevent ordering the wrong size.