bonchev

Yes, but which sensor?

Hello, I'm new to the forum. I have a Skoda Octavia MK3 vRS 2014 2.0 tfsi 220 Hp CXXB. I have a problem with the cooling system of the engine, the arrow on the dashboard constantly played from 60 to 120 degrees Celsius. I made a diagnosis, you can see it below. VIN: TMBJE7NE1F0053737 License Plate: Address 01: Engine Labels: 06K-907-425-V1.clb Control Module Part Number: 5G0 906 259 HW: 06K 907 425 B Component and/or Version: 2.0l R4 TFSI H13 0007 Software Coding: 0C1D00322424010B1000 Work Shop Code: WSC 73430 031 00104 ASAM Dataset: EV_ECM20TFS0215G0906259 001011 (SK37) VCID: EBD5A1270270AB46D11-80BE 2 Faults Found: 15472 - Engine Coolant Level Sensor/Switch P2556 00 [039] - Electrical Malfunction Not Confirmed - Tested Since Memory Clear Freeze Frame: Fault Status: 00000001 Fault Priority: 2 Fault Frequency: 1 Mileage: 194652 km Date: 2022.11.16 Time: 19:13:05 15462 - Control Circuit for Coolant Bypass Valve P2681 00 [039] - Open Cricuit Not Confirmed - Tested Since Memory Clear Freeze Frame: Fault Status: 00000001 Fault Priority: 2 Fault Frequency: 1 Mileage: 194652 km Date: 2022.11.16 Time: 19:13:01 Readiness: 1110 0001 Sometimes the record of the second error disappears, but after a while it reappears I also recorded the live values from the temperature sensors and there is something strange there, one of the values is - 48 degrees VIN: TMBJE7NE1F0053737 License Plate: Address 01: Engine (5G0 906 259 ) 19:34:09 095 Coolant temp at radiator output; unconditioned voltage 1.301 V 096 Coolant temperature 79 °C 097 Coolant temperature at engine outlet; specified value 78.7 °C 098 Coolant temperature at engine outlet; unconditioned voltage 1.230 V 099 Coolant temperature at engine start 85.5 °C 100 Coolant temperature at radiator outlet; actual value 76.9 °C 101 Coolant temperature at radiator output; specified value -48.0 °C 102 Coolant temperature difference between engine and radiator 2.2 °C Where could this discrepancy come from? Sometimes the arrow stands at 60-70 degrees and suddenly drops to 0 and stays like that during movement. when this happens, the radiator fins are turned on.