Audi TT 2019 Bulb Size
Bulb size chart
This page covers the 2019 Audi TT and helps you verify bulb sizes by lighting position, so you can match the correct replacement to each exterior and interior lamp. Because the TT uses LED lighting for many of its key functions, the exact bulb type can vary by market, trim, and lighting package, making position-based fitment checks especially useful.
Use this guide to confirm the bulb or lamp type for headlights, turn signals, brake lights, license plate lights, interior lights, and cargo-area lighting on the 2019 Audi TT. It is designed to help you narrow down the correct replacement before you order, whether you are replacing a single failed bulb or planning a full lighting refresh.
Fitment on the 2019 Audi TT can differ depending on trim, body style, and factory equipment, so always compare your vehicle’s installed lighting with the chart before buying. Many exterior positions on this model are LED-based, while some interior and utility lights use 2825-style bulbs, and that mix can change with market or package differences. If your TT has been converted with aftermarket LED bulbs or upgraded housings, the original bulb listing may not match what is currently installed. For the best result, check the bulb already in the car, confirm the connector and housing style, and verify whether your vehicle uses a halogen setup or an LED module before ordering replacements.
FAQ
Does the 2019 Audi TT use LED bulbs for most exterior lights?
Yes. On this page, most of the listed exterior lighting positions for the 2019 Audi TT are shown as LED, including the headlights, daytime running lights, brake lights, tail lights, turn signals, and license plate lights.
Why does the bulb size vary by lighting position on the 2019 TT?
Different lighting functions use different lamp designs, even on the same vehicle. The 2019 Audi TT may use LED modules in many exterior locations and 2825-style bulbs in certain interior or cargo-area positions, so each lighting position should be checked separately.
Are the low beam and high beam bulbs the same on the 2019 Audi TT?
Not necessarily. This page lists both the headlight low beam and high beam as LED, but that does not mean they are interchangeable. Always verify the exact lighting position before ordering a replacement.
What bulb does the glove box light use on the 2019 Audi TT?
The glove box light is listed as 2825 for the 2019 Audi TT.
What bulb is used for the trunk or cargo area light?
The trunk or cargo area light is listed as 2825 on this page for the 2019 Audi TT.
Are the dome light and map light bulbs the same on this car?
Both the dome light and map light are listed as LED for the 2019 Audi TT. Even so, the exact lamp assembly can vary, so it is still smart to confirm the installed part before purchase.
Do front and rear side marker bulbs use the same type?
This page shows both the front side marker light and rear side marker light as LED for the 2019 Audi TT. Check the specific location because the housing and connector style may still differ.
Can I replace an LED bulb on the 2019 Audi TT with an aftermarket LED upgrade?
In some cases, yes, but fitment depends on the housing, connector, and whether the original light is a replaceable bulb or an integrated LED module. Aftermarket conversions should be checked carefully for compatibility and warning messages.
What should I check before buying replacement bulbs for my 2019 Audi TT?
Check the lighting position, confirm the bulb type already installed, and compare the connector and housing style. It is also important to verify whether your TT has factory LED lighting or a different setup based on trim or market.
Are the brake light and center high mount stop light the same bulb type?
Both are listed as LED on the 2019 Audi TT, but they serve different locations and may be built into separate assemblies. Do not assume they are physically interchangeable.
Why might my 2019 Audi TT bulb chart differ from another TT of the same year?
Trim level, lighting package, body style, and market-specific equipment can all affect bulb fitment. Two 2019 Audi TT models may look similar but still use different lighting hardware.
Is it safe to order bulbs based only on the year and model?
Year and model are a good starting point, but they are not always enough for exact fitment on the 2019 Audi TT. Always confirm the lighting position and, when possible, inspect the installed bulb or lamp assembly before purchasing.