Dual Temperature Sensor AHF

Hello,

The engine in my Octavia TDI (AHF) sometimes revs up to 1500-1800 RPM when starting, and the idle speed then sits around 1100 RPM.
No error codes found in the fault memory.
The search led me to the coolant temperature sensor G62, and now the question is: is this the sensor I'm looking for? It's a dual-temperature sensor with 4 pins and is green, with part number 059 919 501 A.

Best regards,

renwal