nickhey71

Hi I’ve got the same issue with 2014 Octavia VRS 2.0 TSI. The level had dropped in the coolant reservoir after a 3hr journey back from Wales. EPD light on dash and engine limited to 4000 rpm. codes were: 16988 - Insufficient Engine Cooling / Coolant Flow POOB7 00 (2371 15462 - Control Circuit for Coolant Bypass Valve P2681 00 [104] - Open Circuit 15472 - Engine Coolant Level Sensor/Switch P2556 00 [039] - Electrical Malfunction I refilled the coolant tank, and cleared the codes. I went for a short drive round the block and noticed the temperature gauge is showing a wide variation above 90 degrees, changing rapidly up to about 120, then back to 90 again after a few seconds. Scanned fault codes again and still got: 15472 - Engine Coolant Level Sensor/Switch P2556 00 [039] - Electrical Malfunction I’ve read about possible thermostat housing / actuator failure, but could it be a coolant level and / or temperature sensor issue and if yes, which one?? Thanks nick