I want to clean the engine bay of my 2005 Civic. I purchased Autoglym Engine & Machine Cleaner but was concerned when I read the instructions it said to hose with plenty of water to rinse off. My main concerns were water ingress into air vents and electrical components. Can someone please advise which areas I need to cover with cling film. I've attached a photo of my engine bay. Maybe someone could be kind enough to mark the regions with red circles in Photoshop.
Many thanks for your help!