Intake cleaning.

I've posted this on the Golf forum but for anyone interested.

At the weekend I tried cleaning the inlet manifold. I used a method which involved spraying white spirit through the inlet temp sensor whilst keeping the engine at around 2000rpm.

I took pictures with the borescope before and after. It was hard to get the scope in but I did my best, here are the results:

Before

After

Admitadly I only got one valve but there is clearly a reduction in carbon. On the road the car feels no different so far but i haven't logged with VCDS yet. At idle there is no more occasional puttt noise as it ticks over, just a silky smooth idle.

I think I will now be doing this periodically as its very easy to do and the results speak for themselves.