945719 Removing and installing control unit for gas-discharge headlight

WM 945719 Removing and installing control unit for gas-discharge headlight

Tools





Technical values





Preliminary work

1. If a new control unit has to be installed, the values/coding must be read out using the 2nd generation PIWIS Tester 9818 prior to removing the "old" control unit. -> 945755 Replacing control unit for gas discharge 945755 Replacing control unit for gas discharge.
2. Remove main headlight. -> 941519 Removing and installing main headlight - section on "Removing" 941519 Removing and installing main headlights

Removing control unit for gas-discharge headlight

NOTICE

Voltage drop

- Risk of irreparable damage to control unit
- Risk of damage to control unit
- Fault entries in the control unit
- Coding in the control unit is aborted
- Malfunctions in control unit, even during programming

-> Prior to disconnecting the control unit, switch off the ignition and remove the ignition key.
-> Ensure that the power supply is not interrupted during programming.
-> Connect a battery charger with a current rating of at least => Nominal value: 40 A to the vehicle battery.

Information

Some of the repair illustrations show only one side of the vehicle. Naturally, some steps also have to be performed on the opposite side of the vehicle as well. These must be carried out as a mirror image of the steps shown.





Installation position of control unit for gas-discharge headlight

1. Unscrew the two fastening screws -2-.





Detaching control unit

2. Loosen the fastening screw -1- and open the bracket -arrow-.
3. Remove control unit for gas-discharge headlight.





Removing control unit

Installing control unit for gas-discharge headlight

Information

Some of the repair illustrations show only one side of the vehicle. Naturally, some steps also have to be performed on the opposite side of the vehicle as well. These must be carried out as a mirror image of the steps shown.

1. Fit the control unit -arrow-. Make sure it is seated securely.





Fitting control unit

2. Swivel the bracket in -arrow- and secure with the three fastening screws -1 and 2-.





Securing control unit

Subsequent work

1. Install main headlight. -> 941519 Removing and installing main headlight - section on "Installing" 941519 Removing and installing main headlights
2. If the control unit was replaced, the "new" control unit must be adapted to suit the vehicle using the 2nd generation PIWIS Tester 9818. -> 945755 Replacing control unit for gas discharge 945755 Replacing control unit for gas discharge.