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  6. : How to replace coolant temperature sensor in Mazda 3?

Mazda 3 - Video tutorial

Model: Mazda 3 BK, MK 1 - Years 2003-2009
Part: Coolant temperature sensor
Operation: How to replace coolant temperature sensor in Mazda 3?

Replacing the Mazda 3 coolant temperature sensor, as we can see in this tutorial, is an extremely simple and fast operation. Before proceeding, wait for the engine to be completely cold in order to operate in complete safety. Let's start by opening the cap of the expansion tank, so as to release the internal pressure, after which we identify the sensor located in the lower left area of the engine, approximately below the battery. We then disconnect the power connector, unscrew the sensor with a long 19mm wrench and quickly insert the spare. Once tightened securely, we can reconnect the connector.


Posted on 5 April 2023 by ScegliAuto

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Watch the video!


by ScegliAuto

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