1. Open the hood of your Vauxhall Astra.
2. Locate the air filter housing. It is usually a black or gray plastic box located on the top or side of the engine.
3. There may be a clip or latch holding the air filter housing closed. Release the clip or latch and lift off the cover.
4. The air filter will be inside the housing. It is a rectangular piece of paper or foam.
5. Remove the air filter and inspect it for dirt or damage. If the air filter is dirty, replace it with a new one.
6. Reinstall the air filter housing cover and close the hood of your Vauxhall Astra.
Note: The specific location of the air filter may vary depending on the year and model of your Vauxhall Astra. If you cannot find the air filter, consult your vehicle's owner's manual for more information.
