HID bulb, replacing
| CAUTION | Before beginning repairs on the electrical system: Obtain the anti-theft radio security code. Switch off all electrical consumers. Switch ignition off and remove ignition key. Disconnect negative ( - ) battery terminal. When reconnecting battery terminals, observe all applicable Notes and torque specifications, as well as instructions on performing OBD program and electrical system function checks as specified in this article. Refer to Battery, disconnecting and reconnecting . |
| WARNING | HIGH VOLTAGE! Always disconnect negative ( - ) battery terminal prior to servicing any parts of the HID lamp system marked with the yellow "HIGH VOLTAGE!"symbol. After disconnecting battery, briefly turn headlights on and off in order discharge any residual voltage. |
Removing
- Disconnect battery. Refer to «Battery, disconnecting and reconnecting»(/audi/tt/8n-2003-2006/remont/cruise-control-systems/#electrical-equipment__battery-disconnecting-and-reconnecting) .
Left headlight
- Remove cover -arrows-.
Right headlight
- Remove screw -1- and remove cover over expansion tank -arrow-.
Both sides (continued)
- Remove housing cover from headlight.
Scheme 138
- Disconnect electrical connection -1- at HID lamp by turning counter-clockwise -arrow-.
Scheme 139
- Detach retaining ring -1- for HID lamp by turning counter-clockwise -arrow-.
- Pull HID lamp out from headlight housing.
Installing
Install in reverse order of removal, noting the following
| CAUTION | Do not touch glass portion of bulb with bare hands. Even the smallest amount of moisture and/or contaminants from fingers that evaporates on the bulb during operation can cause the glass to cloud over. |
Note. Note installation position: Lug at top of bulb holder must engage in recess of bulb. Retaining ring can only be installed in one position.
- Insert new bulb in housing.
- Secure HID lamp with retaining ring.
- Reconnect electrical connection and close housing cover.
- Reconnect battery. Refer to «Battery, disconnecting and reconnecting»(/audi/tt/8n-2003-2006/remont/cruise-control-systems/#electrical-equipment__battery-disconnecting-and-reconnecting) .
| CAUTION | Before beginning repairs on the electrical system: Obtain the anti-theft radio security code. Switch off all electrical consumers. Switch ignition off and remove ignition key. Disconnect negative ( - ) battery terminal. When reconnecting battery terminals, observe all applicable Notes and torque specifications, as well as instructions on performing OBD program and electrical system function checks as specified in this article. Refer to Battery, disconnecting and reconnecting . |
| WARNING | HIGH VOLTAGE! Always disconnect negative ( - ) battery terminal prior to servicing any parts of the HID lamp system marked with the yellow "HIGH VOLTAGE!"symbol. After disconnecting battery, briefly turn headlights on and off in order discharge any residual voltage. |
Removing
- Disconnect battery. Refer to «Battery, disconnecting and reconnecting»(/audi/tt/8n-2003-2006/remont/cruise-control-systems/#electrical-equipment__battery-disconnecting-and-reconnecting) .
Left headlight
- Remove cover -arrows-.
Right headlight
- Remove screw -1- and remove cover over expansion tank -arrow-.
Both sides (continued)
- Remove housing cover from headlight.
Scheme 140
- Disengage spring clip -2- and remove bulb holder -1- from housing.
- Remove bulb -1- from holder.
Note. Do not disturb parking/side marker bulb -2-.
Installing
Install in reverse order of removal, noting the following
| CAUTION | Do not touch glass portion of bulb with bare hands. Even the smallest amount of moisture and/or contaminants from fingers that evaporates on the bulb during operation can cause the glass to cloud over. |
- Insert new bulb in holder.
- Secure bulb holder with spring clip.
- Close housing cover.
- Reconnect battery. Refer to «Battery, disconnecting and reconnecting»(/audi/tt/8n-2003-2006/remont/cruise-control-systems/#electrical-equipment__battery-disconnecting-and-reconnecting) .
| CAUTION | Before beginning repairs on the electrical system: Obtain the anti-theft radio security code. Switch off all electrical consumers. Switch ignition off and remove ignition key. Disconnect negative ( - ) battery terminal. When reconnecting battery terminals, observe all applicable Notes and torque specifications, as well as instructions on performing OBD program and electrical system function checks as specified in this article. Refer to Battery, disconnecting and reconnecting . |
| WARNING | HIGH VOLTAGE! Always disconnect negative ( - ) battery terminal prior to servicing any parts of the HID lamp system marked with the yellow "HIGH VOLTAGE!"symbol. After disconnecting battery, briefly turn headlights on and off in order discharge any residual voltage. |
Removing
- Disconnect battery. Refer to «Battery, disconnecting and reconnecting»(/audi/tt/8n-2003-2006/remont/cruise-control-systems/#electrical-equipment__battery-disconnecting-and-reconnecting) .
Left headlight
- Remove cover -arrows-.
Right headlight
- Remove screw -1- and remove cover over expansion tank -arrow-.
Both sides (continued)
- Remove housing cover from headlight.
- Disengage spring clip -2- and remove bulb holder -1- from housing.
- Remove bulb -2- from holder.
Note. Do not disturb high beam bulb -1-.
Installing
Install in reverse order of removal, noting the following
| CAUTION | Do not touch glass portion of bulb with bare hands. Even the smallest amount of moisture and/or contaminants from fingers that evaporates on the bulb during operation can cause the glass to cloud over. |
- Insert new bulb in holder.
- Secure bulb holder with spring clip.
- Close housing cover.
- Reconnect battery. Refer to «Battery, disconnecting and reconnecting»(/audi/tt/8n-2003-2006/remont/cruise-control-systems/#electrical-equipment__battery-disconnecting-and-reconnecting) .
| CAUTION | Before beginning repairs on the electrical system: Obtain the anti-theft radio security code. Switch off all electrical consumers. Switch ignition off and remove ignition key. Disconnect negative ( - ) battery terminal. When reconnecting battery terminals, observe all applicable Notes and torque specifications, as well as instructions on performing OBD program and electrical system function checks as specified in this article. Refer to Battery, disconnecting and reconnecting . |
| WARNING | HIGH VOLTAGE! Always disconnect negative ( - ) battery terminal prior to servicing any parts of the HID lamp system marked with the yellow "HIGH VOLTAGE!"symbol. After disconnecting battery, briefly turn headlights on and off in order discharge any residual voltage. |
Removing
- Disconnect battery. Refer to «Battery, disconnecting and reconnecting»(/audi/tt/8n-2003-2006/remont/cruise-control-systems/#electrical-equipment__battery-disconnecting-and-reconnecting) .
Left headlight
- Remove cover -arrows-.
- Remove battery if necessary. Refer to «Battery, removing and installing»(/audi/tt/8n-2003-2006/remont/cruise-control-systems/#electrical-equipment__battery-removing-and-installing) .
Right headlight
- Remove screw -1- and remove cover over expansion tank -arrow-.
Both sides (continued)
- Turn holder -1- counter-clockwise -arrow- and remove from housing.
- Twist and remove bulb from holder.
Installing
Install in reverse order of removal, noting the following
| CAUTION | Do not touch glass portion of bulb with bare hands. Even the smallest amount of moisture and/or contaminants from fingers that evaporates on the bulb during operation can cause the glass to cloud over. |
- Insert new bulb in holder.
- Reinstall battery if necessary.
- Reconnect battery. Refer to «Battery, disconnecting and reconnecting»(/audi/tt/8n-2003-2006/remont/cruise-control-systems/#electrical-equipment__battery-disconnecting-and-reconnecting) .