Do it yourself
Frequently asked questions about cars and motorcycles
Car tutorial (Do it yourself) Motorcycle tutorial (Do it yourself) Frequently Asked Questions

How to Change the Glow Plugs on the Opel Astra

Model: Vauxhall Astra Astra H - Years: 2004, 2005, 2006, 2007, 2008, 2009, 2010
Part: Glow plugs

See other generations:
Video tutorial

The function of the glow plugs is to preheat the combustion chamber, creating the right thermodynamic conditions for igniting the mixture, especially during the first cold start; if one of them is damaged, it is recommended to replace all four; start by removing the plastic cover on the engine and then disconnect one terminal of the battery; at this point, disconnect the fuel pipes and, before unscrewing the glow plugs, it is advisable to blow into their housing to prevent dirt residue from entering the cylinders; then unscrew the glow plugs with the appropriate tool, taking care not to break them (repeated thermal cycles can seize the glow plugs in their respective seats) and then install the new ones without exceeding the tightening torque.


Updated on 23 February 2026 by ScegliAuto


Related tutorials

Replacing Glow Plugs on an Opel Astra 1.9 Cdti
Replacing Glow Plugs on an Opel Astra 1.9 Cdti
Vauxhall Astra (2004-2010 / Astra H) How to replace the glow plugs on an Opel Astra Cdti? Let's see the disassembly. Lift the bonnet to access the engine bay, and remove the soundproofin…
How to Replace the Glow Plugs in the Opel Astra 1.7 CDTI?
How to Replace the Glow Plugs in the Opel Astra 1.7 CDTI?
Vauxhall Astra (2009-2016 / Astra J) As shown in this tutorial, replacing the glow plugs in the Opel Astra 1.7 CDTI is an extremely simple and quick operation. First, open the bonnet, th…
How to Replace the Glow Plugs in an Opel Astra?
How to Replace the Glow Plugs in an Opel Astra?
Vauxhall Astra (2015-2022 / Astra K) 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, …

Other guides you may be interested in

How to Remove the Rear Seat of a Hyundai Tucson?

To remove the rear seat of a Hyundai Tucson, follow these steps. Start by moving the front seats to their most forward position to gain space. Next, locate the release lever on the underside of the rear seat, near the floor. Press this lever down while pulling the seat upwards to unlock it from the anchor pins. Once unlocked, tilt the seat upwards and forwards to remove it from its position. Repeat this process for both sides of the rear seat. Be careful of any electrical cables or components that may be connected to the seat during removal. Once the rear seat is removed, the disassembly is complete.

Watch the video!


by ScegliAuto

More videos