Fuse: Service and Repair

WM 979255 Replacing fuse element in power distributor

Technical values





Preliminary work

Disconnect battery ground strap. -> 2X00IN Work instructions after disconnecting the battery - section on "Disconnecting" 2X00IN Work instructions after disconnecting the battery

Replacing fuse element

NOTICE

Voltage peaks

- Risk of damage to loads or to the control unit

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

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.





Installation position of fuse element in the power distributor

1. Open the luggage compartment tray -arrow A- and remove the toolbox lying underneath -arrow B-.





Opening luggage compartment tray

2. Release the cover on the power distributor -a- and open it -arrow C-.





Opening cover

3. Unclip the HSB control unit at the clips -1- and set it aside together with the connections.





Unclipping HSB control unit

4. Unscrew the two hexagon nuts -2- from the blown fuse element and remove the fuse element.





Loosening hexagon nuts on fuse element

5. Replace defective fuse element with a new fuse element.
6. Secure the fuse element with new fastening nuts -2-. => Tightening torque: 5 Nm (3.5 ftlb.).





Installing and screwing down fuse element

7. Clip the HSB control unit into the clips -1-.





Clipping in HSB control unit

8. Close the cover on the power distributor until it engages securely.





Closing cover

9. Insert the toolbox -arrow D- and close the luggage compartment tray -arrow E-.





Closing luggage compartment tray

Subsequent work

Connect battery ground strap. -> 2X00IN Work instructions after disconnecting the battery - section on "Connecting" 2X00IN Work instructions after disconnecting the battery