What is the most common cause of engine overheating in a Vauxhall Zafira Life?

I have noticed that my Vauxhall Zafira Life is frequently overheating, causing me to constantly top up the coolant. I have had the coolant system checked and there are no leaks. What could be causing this issue and how can I prevent it from happening?

The most common cause of engine overheating in a Vauxhall Zafira Life is a faulty thermostat. This can cause the coolant system to not function properly and can lead to overheating. I would recommend getting the thermostat replaced by a professional mechanic.

Another common cause of engine overheating in a Vauxhall Zafira Life is a clogged or malfunctioning radiator. Over time, debris and sediment can build up in the radiator, hindering its ability to cool the engine properly. I suggest having the radiator flushed and cleaned to prevent further overheating issues.

It is also possible that the water pump in your Vauxhall Zafira Life has failed, causing the coolant to not circulate properly. If the water pump is not functioning correctly, it can lead to overheating. I advise having the water pump inspected and replaced if necessary.