Okay... So the rattly knocking noise'll be the suspension. We know a song about that don't we children? The scrapey noise will be the exhaust brackets. The pool of dripping stuff under the car will be the power steering fluid. The terrible misfire will be either the MAF or a lambda probe or a clogged air filter. The rumbling from the back end will be the wheel bearings. The strange electrical fault will be a strange electrical fault. The squeaking noise will be a belt or a tensioner or a belt and a tensioner and the the best time to flick the wiper stalk to off so that they park when the wiper relay packs up is just as they pass the interior mirror on their downward arc. Welcome to the happy world of 156 ownership.... Everyone sing along... 'The sun has got it's hat on, hip hip hip horray, the sun has got it's hat on and it's coming out to play...'