Do it yourself
Frequently asked questions about cars and motorcycles

Instructions for Replacing Glow Plugs

Model: Vauxhall Astra Astra F - Years 1991-1998
Part: Glow plugs

Open the front bonnet and locate the glow plugs: they are found at the front of the engine connected in parallel by a metal bracket; then, remove the connecting element of the glow plugs and check the resistance value of the glow plugs using an ohmmeter (commonly known as a tester): if a glow plug shows an open circuit, it means it is damaged. Alternatively, more empirically, take a piece of electrical wire, touch one end to the glow plug and with the other touch the positive terminal of the battery: if it sparks, the glow plug is good. Once the faulty glow plugs are identified, unscrew them and replace them with new ones; then reconnect them in parallel.

Updated on 6 February 2026 by ScegliAuto

Video tutorial

Related tutorials

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…
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…
Vauxhall Astra (2009-2016 / Astra J) In this tutorial, see how to replace the glow plugs in the Opel Astra, a task that requires good manual skills. First, unscrew the lower fixing bolts…

Other guides you may be interested in

How to Check the Oil Level on a Jeep Renegade?

To check the oil level on a Jeep Renegade, you need to open the bonnet to access the components inside the engine bay: on the lower left side of the engine block, you will find the dipstick for checking the level. This should be pulled out and thoroughly cleaned with a cloth: once cleaned, reinsert it back into its tube and pull it out immediately after. This way, you can check that the oil mark is between the minimum and maximum levels; finally, you can place the dipstick back in its tube.

Watch the video!


by ScegliAuto

More videos