BMW E34 5-Series 525i or 535i Front Brake ABS Wire Loosening

If you’re planning a task that involves removal of the front hub, the ABS wire will need to be undone.

The wire runs from the hub to a rubber splash shield in the inner wheel well. The shield has a protruding rib so that I could grasp it firmly and twist it 90 degrees. It then came loose, and I could pull it towards me and see a electrical connection.

By pulling its ends clumsily in opposite directions, I managed to break the plug. By being more careful the second time, I still managed to break the plug. The 20-plus-year-old plastic seems pretty brittle which should probably not be surprising to me.

When I pulled very carefully, I was able to separate subsequent plug connections without additional damage.