Check the temperature around the engine. Only clean the engine when its cooled down state.
Protect water sensitive areas (battery, alternator, air filter) with plastic and electronic tape.
Rinse the engine using light pressure.
Apply Garage One Multi Purpose Cleaner. Work in the product with soft bristle brush.
Rinse the engine to lift away dirt.
Dry the components using a terry towel. Compressed air is also safe and effective.
Run the car for 1-2 minutes and verify there are no issues or dashboard warning lights.