How do you repair multi function display on a vectra B?

To repair the multi-function display (MFD) on a Vectra B, first check the fuse associated with the display to ensure it's not blown. If the fuse is intact, inspect the wiring and connectors for any damage or corrosion. If the display still doesn't work, it may need to be recalibrated or replaced, which usually requires removing the dashboard panel to access the MFD. If you're not comfortable with these steps, consider consulting a professional technician for assistance.