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How to Replace the Thermostat on an Opel Astra 1.7 CDTi

Model: Vauxhall Astra Astra K - Years 2015-2022
Part: Thermostat

The thermostat on the Opel Astra 1.7 CDTi is located on the right-hand side of the engine block. To access this part of the engine block, disconnect the battery and loosen its mounting bolts to remove it. Once the battery is removed, loosen the bolts securing the thermostat to its housing and completely remove it. After correctly inserting the new thermostat, tighten the bolts and reposition the battery, reconnecting it to the cables and securing it with the appropriate mounting bolts.

Updated on 13 June 2026 by ScegliAuto

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