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Where is the coolant temperature sensor located in the Tiguan?

1 Answers

DeKiara

07/29/25 6:35pm

Tiguan's coolant temperature sensor is located inside the front bumper of the engine, in direct contact with the coolant. The lower the internal temperature of the coolant temperature sensor, the greater its resistance. It is used to measure the temperature of the engine's coolant, with the thermostat generally maintaining a temperature of 90 degrees. Additional information: 1. Principle of the coolant temperature sensor: The electronic control unit (ECU) detects the engine coolant temperature based on this change - the lower the temperature, the higher the resistance, and vice versa. The ECU uses this change to measure the engine coolant temperature as a correction signal for fuel injection and ignition timing. The engine coolant temperature can indicate the vehicle's operating status, whether it is stationary or moving, or how long it has been running. 2. Structure of the coolant temperature sensor: The automotive coolant temperature sensor is installed in the water jacket of the engine block or cylinder head, in direct contact with the coolant, to measure the engine's coolant temperature. The temperature sensor used in the coolant temperature gauge is a negative temperature coefficient thermistor (NTC), whose resistance decreases as the temperature increases, with one wire connected to the ECU.

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