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How to Remove the Catalytic Converter on Opel Astra H 1.7 CDTI

Model: Vauxhall Astra Astra H - Years 2004-2010
Part: Exhaust muffler

In this tutorial, learn how to remove the catalytic converter on an Opel Astra H by following the instructions below. First, lift the vehicle and start by removing the bolt of the metal clamp that connects the catalytic converter to the exhaust manifold using a 17 mm socket; then, remove the rubber support and take out the catalytic converter as shown in the video. Now proceed to replace this component and then reassemble everything by applying the reverse procedure of disassembly!

Updated on 13 April 2026 by ScegliAuto

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