What are the most common problems with the Vauxhall Vivaro's engine?

I have recently purchased a used Vauxhall Vivaro and have been experiencing some issues with the engine. What are some common problems that I should be aware of and how can I prevent them?

One common issue with the Vauxhall Vivaro's engine is a build-up of carbon deposits. To prevent this, make sure to regularly change the engine oil and use fuel additives.

Another common problem is a faulty EGR valve, which can cause poor performance and emissions. If you notice any issues, get it checked and replaced if necessary.

Regularly checking and replacing the air and fuel filters can also prevent problems with the engine's performance.