My 2009 A8 D3 had its rear drivers side inner light (on boot) replaced with a new one from *******.

I discovered after having my latest MOT that the reversing light and fog light were reversed.

To resolve the issue, I swaped the wires around for the reversing light and fog light. In the light clusters electrical connector plug.

Both the reversing light and fog light now work correctly. However I now have a new issue. Each time I select reverse gear, a bulb out warning lamp illuminates on the dashboard. As if the reversing light bulb is out. It isn't, though.

Can anyone shed any light (excuse the pun) on this and a possible fix?

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