March Challenge Day 21: Working

Day 21. Working: This could be you working {or at school} or could be something working {functioning as it should}.

Under the Bonnet

This is what hides under the bonnet of my car. It makes it work. It is a complete mystery to me. I sometimes have to venture there to replenish the windscreen wash. Anything more technical and I have to open my wallet to someone more knowledgeable on these matters.