Cleaning chassis, suspension, engine bay, etc
My 2006 Elise has 18k miles on it now. The paintwork, star shield and interior are all in nice shape and clean. I went to change the air filter yesterday (speaking of, how the hell to you access it? I had to abort the operation when I couldn't figure out how to get the air box opened wide enough to remove the filter) and while I had the wheel off and the wheel well liner removed, I really got a good look at the engine bay, suspension, under trays and chassis. They are really really dirty and I can't stand it. I live in a city and don't have running water where I park. It's a conundrum because I can't figure out how to do a thorough wheels off detail of the areas I mentioned above.
My real question though is what process would be effective for this type of cleaning, without damaging anything. Is it safe to get the area behind the wheel well liner wet with moderately pressurized water? What about the engine bay? I'm nervous to spray around the electrical components and I'm worried about spraying degreaser or other cleaners on the suspension, brakes, etc.
What I'd like to do, is removed the wheels, well liners and under trays and just blast all those areas with water, followed by a degreaser/cleaner, then rinse, then use a leaf blower to dry everything. I've seen really clean engine bays on this forum. How do people do this? The not having water thing is really challenging, although I did recently purchase Worx Hydroshot, which works very well.