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How to Replace the Glow Plugs on the Alfa Romeo 156 2.4 JTDM

Model: Alfa Romeo 156 MK 1 - Years 1997-2007
Part: Glow plugs

In this video tutorial, you will learn how to dismantle and replace the engine glow plugs on the Alfa Romeo 156 2.4 JTDM, as well as on the 159 with the 1.9 JTDM engine. First, open the bonnet of your car and start by removing the upper engine cover; then remove the four glow plug leads and use a 9 mm socket wrench with an extension to unscrew and remove the glow plugs, as shown in the video. At this point, replace the glow plugs with new ones of the correct type, screwing them in by hand before tightening with a wrench!

Updated on 24 April 2026 by ScegliAuto

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