I have a 1989 300SE which I want to rebuild the engine. It needs motor mounts, 2 lower oil gaskets because it leaks quite a lot, amongst some other minor issues. I have rebuilt in the past - way past - about 25 years ago, but I can handle. My question is - is there a good shop manual that I can get that will guide me through? The engine looks like the engine I worked on, not the new ones where you can't get your hand in anything. May be a silly question, but I will ask anyway. Given that the engine is "simple" to a degree, is it possible to do a tear down from within the engine compartment, or is complete removal intact the best way? Any other comments, suggestions would be helpful. I'm in the northeast & will not begin until the weather warms up. Thank you.