High Intensity Gas Discharge Lamp Control Modules -J343- and -J344- from approx. 04.00, removing and installing
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
Left headlight:
- Remove battery. Refer to Battery, removing and installing .
Right headlight:
- Disconnect battery. Refer to Battery, disconnecting and reconnecting .
- Remove screw -1- and remove cover over expansion tank -arrow-.
- Remove nut -1- at activated charcoal filter -2-.
- Unclip breather pipes from retainers.
- Lay aside activated charcoal filter with connected pipes.
Both sides (continued):
- Remove screws -arrows-.
- Remove module from headlight.
Installing
Install in reverse order of removal, noting the following:
- Check gasket between igniter for HID lamp and headlight housing.
- Reinstall battery if necessary.
- Reconnect battery. Refer to Battery, disconnecting and reconnecting .
Tightening torques
| Component | Nm |
| Control module to headlight | 1.2 |
| Activated charcoal filter to body | 10 |