How to Change Audi TT Headlights

1. First, select the new headlights you want to install. The Audi TT can use a high-intensity discharge (HID) bulb or an light-emitting diode (LED) package. Choose which one you want from an auto parts store.
2. To access the headlights, you must pop the trunk and remove the headlights from behind the casings. Open the trunk and find the back of the headlight wires. These should feed right into the middle of the headlight assembly.
3. Loosen the securing screws around the headlight connection. The connection is a small plastic piece at the end of the wires. Some twisting and maneuvering may be needed to get at the screws. Loosen all the screws but do not completely remove them.
4. Once the screws are loosened, twist the headlight connector until it pulls freely out of the headlamp case. The bulb and connector will come out together.
5. Release the headlight bulb from the connector by depressing the clip or attachment (some models may have different types of clips) and pull out the bulb.
6. Insert the new bulbs by sliding them into the connectors. Replace the bulbs in the headlamp. Turn and lock them in place behind the screws, then tighten the screws to secure them.