HID lamp, replacing
| CAUTION | HIGH VOLTAGE! Always disconnect negative ( - ) battery terminal prior to working on parts of HID headlamp components marked with yellow "HIGH VOLTAGE" warning symbols. |
Removing
- With ignition switched off, disconnect battery Ground (GND) wire --> «Battery, disconnecting and connecting»(/audi/a6/c6-2008-2011/remont/cruise-control-systems/#electrical-equipment__battery-disconnecting-and-connecting) .
Left headlamp - vehicles with 6-cyl. Gasoline engine
- Remove reservoir for power steering.
Right headlamp - vehicles with 6-cyl. Gasoline engine
- Remove air filter housing.
Right headlamp - vehicles with 4.2l MPI engine
- Remove air filter housing.
Right headlamp - vehicles with 4.2l FSI engine
- Remove air filter housing.
All
- Release securing guides - arrows - and remove headlamp housing cover.
Scheme 184
- If present, pivot securing clip - 1 - for electrical harness connector to side.
- Rotate ignition coil - 2 - for gas discharge lamp counter-clockwise - arrow -.
- Disconnect harness connector - 3 - at ignition coil for gas discharge lamp.
- Remove ignition coil for gas discharge lamp.
Scheme 185
- Disengage wire clamp - 1 -.
- Pull gas discharge lamp - 2 - out of headlamp housing.
Installing
| 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. When installing housing cover, ensure proper seating. Water intrusion will damage headlamp. |
Installation is performed in reverse order of removal, noting the following
- Insert new gas discharge lamp into housing, do not touch glass cone with bare hands when doing so.
Note. Note installation position: Upper tab at bulb socket must engage at recess for gas discharge lamp. If present, secure gas discharge lamp using wire clamp.
Note. Harness connector must only be connected with ignition coil installed.
Scheme 186
- Check if recess in housing of ignition coil for gas discharge lamp and recess in pressure ring align completely with each other - arrows -.
- Attach ignition coil for gas discharge lamp to headlamp and fasten clockwise until stop.
- Ignition coil must turn freely.
- Arrow on housing points upward.
- Connect harness connector.
- Secure electrical harness connector using securing clip.
- Close housing lid.
- Connect battery. Required actions «Battery, disconnecting and connecting»(/audi/a6/c6-2008-2011/remont/cruise-control-systems/#electrical-equipment__battery-disconnecting-and-connecting) .