2018 superb has intermittent locking fault. I get out of the car and lock with key. 10 second later you can hear the car locks relocking repeatedly. Any thoughts?

You’ll need to get it scanned as it’s very likely to be one of the door locks will need replacing

All door locks and boot are locked when i go round and check tho

It won't be that a doorlock isn't locking, it'll be that its not feeding back its status so the car either doesn't think its locked (so tried again) or doesn't know whether its locked or not, so defaults to some attempt to go through the process again to be sure.