Well on travelling up to bonny scotland on friday for my sons wedding on friday,my phone setting on my mk6 golf stopped working ?, it had disappeared from the cluster so no phone through the bluetooth in the car, so i decided to google it and it does happen so i looked for a fix and found one and thats why im posting, the unit bluetooth is i think the same throughout the vag range so this fix will work on skoda and seat,so what i did was remove the polysterine box underneath the driver side seat in mine , and simply disconnect the black pin connector from the main body of the plastic box by just pulling back on the white clip and the connector comes right off,then reattach the block into the body and the bluetooth should now be fine

Yup, common issue