How do I troubleshoot my Vauxhall Insignia's engine overheating?

I noticed that my Vauxhall Insignia's engine has been running hot and I'm worried it might overheat. What could be causing this issue and how can I fix it?

The most common cause of engine overheating is a low coolant level. Check your coolant reservoir and top off if necessary. If the coolant level is consistently low, there may be a leak in the system that needs to be fixed.

Another potential cause could be a malfunctioning thermostat. If the thermostat is stuck closed, it can prevent coolant from circulating properly and lead to overheating. You may need to replace the thermostat to fix this issue.

Make sure to also check the radiator for any obstructions, such as debris or bugs. A clogged radiator can also cause engine overheating.

If none of these solutions resolve the issue, it's best to bring your Vauxhall Insignia to a trusted mechanic for a thorough inspection. They will be able to pinpoint the exact cause of the overheating and provide the necessary repairs.