Hi,
Long time lurker. Had an issue with my car recently, which has now been fixed, thought I should post the details here in case anyone else has the same problem.
My car is a 2019 Octavia 1.6 TDI. Recently, I had the glow plug light start flashing after driving a mile from home. The card did not enter limp mode, normal power was available but the stop-start system was disabled.
I had a diagnostic done on the car and fault code P164B00 was reported. The code was cleared but came back again with the flashing glow plug light. A return trip to the garage was required where the oil pressure sensor/switch was replaced. The glow plug light has not reappeared and the car drives normally.
I'm £150 lighter but the car is working fine.