1. Open the hood of your car.
2. Locate the engine cover, which is usually a black plastic cover with the Opel logo on it.
3. Remove the engine cover by unclipping the plastic clips that hold it in place.
4. Once the engine cover is removed, you will see the cylinder head, which is the top part of the engine.
5. The spark plugs are located on the cylinder head, one for each cylinder.
6. They are usually identified by a rubber or plastic boot that covers the electrical connection.
If you are still unable to locate the spark plugs, you can refer to your car's owner's manual for more detailed instructions.
