Jetta Universal Water Temperature Sensor SWG1379A, original factory quality, precise temperature control

SWG1379A water temperature sensor with original factory quality standard, precisely controlling temperature; compatible with all FAW-Volkswagen Jetta models, including older boxy Jettas and newer partners. Installed in the cooling system hose, monitors temperature in real time and transmits signals to the ECU to adjust fuel and fan operation, ensuring engine runs in the optimal temperature range. Direct replacement for OEM SWG1379A; strong universality; after installation, coolant temperature gauge stabilizes, cold-starts are smooth, and hot-running fans function normally. If the gauge climbs and falls suddenly, cold-start is hard, or fans cycle frequently, sensor aging is indicated and replacement resolves the issue.