Operation CHARM: Car repair manuals for everyone.

Power Distribution Module: Service and Repair



Removing And Installing Power Distributor (HSB)

Technical values







Preliminary work
1. Disconnect battery ground strap.
2. Loosen the fuse box.

Removing power distributor (HSB)

NOTE:
Voltage peaks
- Risk of damage to loads or to the control unit

- Disconnect the battery before removing the component or control unit.







1. Switch off ignition and remove remote control.
2. Unscrew the fastening screw on the power distributor (HSB) -arrow A-.
3. Pull the power distributor (HSB) up out of the guide -arrow B- and carefully set it aside.







4. Release the cover on the power distributor (HSB) and open it.







5. Release electric plug connections -1, 2- , disconnect them -arrow A- and unclip the connecting lines -arrow B-.







6. Unscrew the fastening nuts for the battery lines and pull the connections out through the openings if necessary.







7. Mark the connecting lines for the relevant fuse element.
8. Unscrew the fastening nuts on the fuse elements and pull the lines off the connection.







9. Remove the power distributor (HSB).

Installing power distributor (HSB)

WARNING:
Incorrect handling of safety bolts
- Danger of injury
- Loss of torque


- Always use new fastening screws and nuts following removal.
- Observe specified tightening torques.
- Carry out a visual inspection of all re-used parts.

1. Fit the fuse elements according to the wiring diagram and fit the marked connecting lines one after the other in the power distributor and secure with the fastening nuts.
- Tightening torque: 5 Nm (3.5 ftlb.)







2. Pull the battery leads through the opening into the power distributor (HSB) if necessary.
3. Attach the battery leads and secure with the fastening nuts.
- Tightening torque: 8 Nm (6 ftlb.)







4. Connect electric plug connections -1, 2- ( -arrow C- ) until they engage securely.
5. Clip in connecting lines -arrow D-.







6. Close the cover on the power distributor (HSB) until the locking lugs engage securely.







7. Slide the power distributor (HSB) into the guide -arrow C- and screw in the fastening screw -arrow D-.







Subsequent work
1. Secure the fuse box.
2. Connect battery ground strap.