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How to Replace the Glow Plugs in an Opel Astra?

Model: Vauxhall Astra Astra K - Years 2015-2022
Part: Glow plugs

This tutorial demonstrates how to replace the glow plugs in an Opel Astra K, a very simple operation. First, wait for the engine to cool completely, then open the bonnet and remove both the upper plastic cover and the indicated rubber cover. Next, disconnect the wires from the glow plugs to be replaced, grasp them with a long 10mm socket and gently unscrew them. If the operation proves difficult, apply some penetrating spray and let it work. Once the replacements are inserted, tighten them using a torque wrench set to 10Nm.

Updated on 19 June 2026 by ScegliAuto

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