What is the most efficient way to clean the engine of an Audi A2?

I am looking for the best method to clean the engine of my Audi A2. I want to properly maintain my car but also avoid damaging any important components. Any tips or suggestions would be greatly appreciated.

The most efficient way to clean the engine of an Audi A2 is to use a degreaser and a pressure washer. First, let the engine cool down and cover any electrical components with plastic bags. Then, spray the degreaser onto the engine, taking care to avoid sensitive parts. Let it sit for a few minutes before using the pressure washer to rinse off the degreaser and dirt.

I recommend using a foaming engine cleaner for a deeper clean. Generously spray the cleaner onto the engine and let it sit for about 10 minutes. Then, use a brush to agitate any tough dirt or grime. Lastly, rinse off the cleaner with a pressure washer. This method is especially effective for removing stubborn stains.