What Are Common Issues with the Vauxhall Insignia's Engine?

I have been experiencing some problems with my Vauxhall Insignia's engine and I'm not sure what could be causing them. Can you provide some insight on common issues with this model's engine and how to address them?

One common issue with the Vauxhall Insignia's engine is a faulty mass airflow sensor. This can cause the engine to run rough or stall. A simple fix is to replace the sensor. Make sure to get a high-quality one.

Another potential issue could be a defective EGR valve. This can result in poor engine performance and a noticeable decrease in fuel efficiency. Have a mechanic check the valve and replace it if necessary.

If you notice your engine making strange noises or running louder than usual, it could be due to a worn timing belt. It's important to replace the timing belt regularly to avoid serious engine damage.

Keep an eye on your coolant levels, as low levels can cause the engine to overheat. Make sure to use the recommended coolant for your Vauxhall Insignia and check for any leaks.