u/Queasy-Director-3868

Alrighty, so I’ve got a 2015 Polo TSI Auto. Recently had issues with the infotainment system and dash turning off completely while driving. Happened a few times, took it to the mechanic and they did a full diagnostic everything. Identified several faults with control module, windscreen wiper stalk and basically did a full trace of all wiring to check for water ingress etc. Replaced body control module, windscreen wiper stalk, new battery etc. Cost me a small fortune, but then they said hey it’s all good now, we can’t replicate the fault anymore.

Fast forward to present day, they’ve given it back to me and we have the same issue. What could this be?