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Where is the Coolant Temperature Sensor Located in the Opel Astra?

Model: Vauxhall Astra Astra H - Years: 2004, 2005, 2006, 2007, 2008, 2009, 2010
Part: Engine coolant temperature sensor

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Video tutorial

This video shows where the coolant temperature sensor is located in the Opel Astra and how to proceed if you need to replace it. As shown, the sensor is located at the bottom of the expansion tank, which will need to be removed. First, ensure the engine is completely cold, then remove the battery and take off the two side blocks of the tank.

Detach the tank from the support, disconnect the sensor connector, and extract it from the housing. To install the replacement and reassemble everything, simply follow the reverse procedure.


Updated on 27 October 2026 by ScegliAuto


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by ScegliAuto

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