How do you change front springs on 1999 astra 1.4 petrol?

To change the front springs on a 1999 Astra 1.4 petrol, start by safely lifting the vehicle and removing the front wheel. Then, detach the strut assembly by removing the bolts connecting it to the steering knuckle and the top mounting bolts under the hood. Use a spring compressor to safely compress the spring, then remove the old spring and replace it with the new one. Reassemble the strut, reinstall it, and repeat for the other side before lowering the vehicle.