97891900 Removing and installing power distributor

WM 978919 Removing and installing power distributor

Technical values





Preliminary work

Preliminary work for power distributor

Disconnect and cover the ground terminal on the battery. -> 271000 Work instruction after disconnecting the battery

Removing power distributor





Installation position shown on the 911

1. Switch off ignition and remove ignition key.
2. Release the locking mechanism of the B+ line -A- and pull off the B+ connection from the power distributor -B-.





Releasing locking mechanism of the B+ line

3. Unscrew the two fastening nuts -2-.
4. Unscrew both plastic screws -1- for the cover in the passenger's footwell and remove the cover downwards.





Unscrewing fastening screws

5. Pull the power distributor away from the firewall and lower it down into the passenger's footwell.





Disengage the power distributor and pull it down and out.

Information

If a new power distributor needs to be installed or a fuse element replaced, then a new cover for the fuse elements (blue) and a new seal label (red) must be fitted. The spare parts are summarised in the PET as a package.

6. Disengage the lock and fold the cover open. Pull off the original seal label -arrow-.
7. Unclip the cover for the fuse elements with a screwdriver.





Unclipping cover with a screwdriver

8. Mark the connection leads to the relevant fuse element.





Unscrewing fastening nuts and removing fuse element

9. Unscrew the fastening nuts -1- , remove the washer -2- and take out the fuse element -3-.
10. Unscrew fastening nut for the B+ line and remove the power distributor.

Installing power distributor

Installing the current distributor

1. Position the fuse elements -3- in the power distributor in accordance with the wiring diagram and position the marked connection leads in turn, fit the washer -2- and tighten with the fastening nuts -1-. => Tightening torque: 6 ftlb. => Tightening torque: 11 ftlb.





Tightening a fuse element

2. Position the B+ line on the power distributor and tighten with the fastening screws. => Tightening torque: 11 ftlb.

Information

If a new power distributor needs to be installed or a fuse element replaced, then a new cover for the fuse elements (blue) and a new seal label (red) must be fitted. The spare parts are summarised in the PET as a package.

3. Insert the blue cover in power distributor and clip in place.





Positioning the cover.

4. Close the power distributor until the lid is felt to engage and seal with the red seal label.





Closing the power distributor and pushing upwards

5. Check the plastic seal on the power distributor for damage; replace it if in doubt.
6. Slide the power distributor upwards between the heater/air-conditioning unit and the bulkhead, and engage in the bulkhead.
7. Screw down power distributor with the two fastening screws -2-. => Tightening torque: 11 ftlb.





Screwing down the power distributor

8. Push the B+ of the battery onto the mounting point as far as the stop. Check that the B+ line sits firmly.

Subsequent work

Subsequent work for power distributor

Connect the battery and carry out "Work instructions after disconnecting the battery". -> 271000 Work instructions after disconnecting the battery