HI. This fault has appeared before but no definitive how to do statements. I have the passenger airbag warning light coming on. VAG com states its a resistance out of spec and the connector has been removed by the previous owner. It looks like a poor job has been done and if I crush the area covered by tape and reset the warning it does not appear for a few weeks. I want to remove the seat, re-do the joints by putting in a new connector. Has anyone done this before?. How may ways do I need and If I disconnect the battery , unbolt seat for access remake the connections etc are there any other issues?. No codes etc when re-connecting the battery?

You dont need to disconnect the battery, just dont put the key in the ignition,

Unbolt the seat tip it forward and disconnect the wire clip, lift seat out and check both ends, cut off clips right next to them and either use screw blocks to joint or solder them and insulate