I have a 1982 240D mercedes 4cyl diesel it looks as if the main source of the oil leaking is from the very top hose where the air intake hose goes directly into the engine compartment and it is very loose I can pop it off with my hand. theres also the hose that I can also pop out but the connector is even worse. If someone could help me with this its an oily mess oh well wont have to worry about rust lol