Cars Comp

1. Park your Audi TT on a level surface, and pop the cars hood.
2. Remove the plastic engine cover that surrounds the oil filler neck to reveal the coil packs. Remove any plastic screws securing the engine cover in place using your flat-blade screwdriver.
3. Position the head of the screwdriver underneath the top of the coil pack, pressing down on the screwdrivers handle to pry the coil pack loose. Once you have loosened the coil pack, gently pull it up and out.
4. Press down on the plastic notch at the base of the coil packs connector, and pull the coil pack out of the wiring harness.
5. Insert the new coil pack into the wiring harness, and gently slide it back down on top of the spark plug. Press and click it into place to secure it.
6. Repeat steps 4 and 5 on any other coil packs you plan to replace.
7. Reinstall the plastic engine cover and close your hood to complete the procedure.

for more information click here

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.

1. Replace the factory audio head unit with an aftermarket head unit that will be able to handle more amps. A multitude of aftermarket head units are available that include MP3-playing capabilities, have built-in satellite radio, GPS navigation, and inputs for auxiliary audio devices such as portable MP3 players.
2. Install aftermarket speakers to replace the factory audio speakers in your sound system. Aftermarket speakers can consume more power and are engineered for improved audio quality. These can be installed in conjunction with the factory head unit in your TT or coupled with an aftermarket head unit for maximum effect. Examples of aftermarket speakers include tweeters and subwoofers, which can respectively improve mid-range and bass quality of the audio youre playing.
3. Install an aftermarket amplifier to boost the power that is going to your TTs speakers. By increasing the power to the speakers, youre increasing the volume at which the speakers can operate. Some aftermarket speakers and head units will require the installation of an amplifier as the factory electrical system in your TT may not be capable of handling the increased electrical load on its own.