Lots of people I know say dont get the engine bay steam cleaned. I guess because it could cause electrical problems? Have you ever had an Alfa engine steam cleaned?
Morning Rob, good point about Alfa's and water
I have just looked at the AutoGlym site and lifted this;
Q. What is the best way to clean the engine and bay, and then make it look new again?
A. The best way to clean an engine bay is using Autoglym Engine and Machine Cleaner.
This is a powerful, water based, biodegradable degreaser which rapidly dissolves oil, grease and accumulated grime from engines.
It is a quick and easy spray on, brush and hose off procedure that cleans all metal, plastic or rubber components, including surrounding paintwork.
To restore plastics and hoses to 'as new', spray wet surface with Autoglym Vinyl & Rubber Care, close the bonnet and allow to dry.
See the product range area of the website for videos of these products.
Just think that steam is better than cold water when in a situation like this.