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Where is the Skoda Octavia electric fan controller located?

2 Answers

VonNolan

07/30/25 2:09am

Skoda Octavia does not have an electric fan controller. The cooling fan is an important component of the car engine's cooling system, primarily cooling the radiator and intercooler. The fan has only 4 wires: 2 power wires, 1 ground wire, and 1 main signal wire from the computer board to the fan. The high-speed rotation voltage is above 2.3V, while the normal voltage when the fan is not rotating is 0.3V. If this wire shows 0.3V, the fan is already damaged. Below is how the cooling fan works: 1. The radiator temperature sensor, which is actually a temperature control valve (not the water temperature gauge sensor), detects when the radiator temperature exceeds the threshold, causing the fan relay to engage; 2. The fan circuit is activated through the fan relay, starting the fan motor; 3. When the radiator temperature sensor detects that the radiator temperature is below the threshold, the fan relay disengages, and the fan motor stops working.

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BethanyMarie

08/15/25 8:10am

I've driven this Octavia for nearly a decade and know this spot perfectly. The electric fan controller is mounted on the fan assembly behind the radiator, near the front of the car. Open the hood and look down along the coolant reservoir to find that black plastic box. Last time I replaced it myself, I noticed there are two fixing screws at the bottom of the controller, plus an electrical connector. Truth is, these components don't last very long – they're prone to failure in high-temperature environments. I'd recommend keeping a spare controller in the trunk for vehicles over five years old. It's also crucial to maintain clean cooling fins regularly, as accumulated poplar fluff and dust will impair heat dissipation efficiency.

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