Parts for your 2015 Holden Astra-Gas struts

2015 Holden Astra gas struts

Based on Holden/GM technical material, gas struts are fitted to the rear hatch of the 2015 Holden Astra (PJ series, derived from the Opel/Vauxhall Astra J). The GM Global Electronic Parts Catalogue lists liftgate gas springs for this model, and the Astra J body service procedures detail removal and installation of the tailgate gas struts. The bonnet on most 2015 Astra variants uses a manual prop rod from factory, not gas struts.

The gas struts on a 2015 Holden Astra do the heavy lifting at the back. They counterbalance the hatch so it opens smoothly, stays up without a wobble, and closes without a thud. Inside each strut is high-pressure gas and a bit of oil to control damping, which is why they feel smooth when the hatch glides open.

As part of routine servicing, it’s worth giving the hatch struts a quick once-over. If the tailgate starts dropping, opens sluggishly (especially on a cold morning), or needs a helpful shove to get moving, the struts are likely losing pressure. A mist of oil around the shaft or noisy, jerky movement are other dead giveaways. When it’s time, replacement is straightforward and usually done in pairs to keep lift and balance even.

• Safety first: always prop the hatch or have a helper hold it before removing a strut. These bits carry the full weight once the hinge is past its balance point.
• Replace in pairs: mixing an old strut with a new one can twist the hatch and wear hinges.
• Keep it clean: wipe the chrome shafts with a soft cloth, avoid grease or silicone sprays on the shaft seals, as they can swell and fail.
• Listen and feel: if the hatch creaks, droops, or bounces at the top of travel, book it in. Most struts last 5–10 years depending on climate and how often the hatch is used.
• Spec matters: matching length, end fittings, and force rating to the PJ Astra is essential. The correct details are shown in the GM EPC and on the original strut label.

For owners who like a tidy engine bay, bonnet gas struts can be added as an accessory on some Astras, but they’re not factory equipment on most 2015 cars. If fitting aftermarket bonnet struts, use brackets designed for the PJ/Astra J platform to avoid stressing the bonnet frame.

Regular checks, a quick clean, and timely pairwise replacement will keep the Astra’s hatch operating sweet as, with no surprises on windy days or when the weather turns chilly.

Popular questions about 2015 Holden Astra gas struts

How long do the hatch gas struts typically last?
Most owners see 5–10 years out of a set, but heat, cold, and frequent use can shorten that. If the hatch feels heavy, sags, or opens slowly in winter, that’s the cue to replace them.

Are bonnet gas struts factory-fitted on the 2015 Astra?
No, most 2015 Astra variants use a bonnet prop rod from factory. Aftermarket bonnet strut kits exist, but they should be model-specific and installed with proper brackets.

Can they be replaced at home?
Yes, the hatch struts are a straightforward DIY for a confident home mechanic. Support the hatch securely, swap one side at a time, and confirm the new struts match the original length, fittings, and force rating.