How do I replace a 2019 Holden Astra's low-beam light?

If it’s only the low beam light not working and we’re not talking about crash damage here, then you can change the globe at home. You’ll need a H7 replacement globe for the Astra, and the blown left-hand side globe can be removed by undoing a small, plastic access hatch inside the engine bay at the back of the light, squeezing the spring clip that holds the globe in its mount, and then removing the wiring plug. Then, you take the new globe and reverse the process, being careful not to touch the glass part of the globe as that can damage the new globe.

That all sounds pretty simple and it is if you’ve done it before, but it’s also a bit fiddly if you’re a first-timer. But before spending money at a workshop to have the globe changed, check out some of the bigger chain auto parts stores. Many of these have a free fitting service for things like wiper blades and globes.