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How to Replace the Engine Temperature Sensor on Audi A4 B6 1.8T

Model: Audi A4 B6 - Years 2000-2004
Part: Engine coolant temperature sensor

Today, you will see the instructions to remove the coolant temperature sensor bulb on an Audi A4 B6, second generation, with a 1.8 turbo engine. First, open the hood of your car and locate the sensor, which is found at the rear of the engine. You will need to remove the coolant duct, where the temperature sensor is housed. Disconnect the various hoses and remove the mounting screws. At this point, lift the tab of the duct to extract the bulb sensor, replacing it with the new one!

Updated on 14 April 2026 by ScegliAuto

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