w 140 question
 

hi... i have a 93 mercedes 300 se and i have this weird problem, the upper hose is very hard when the engine is at normal temperure about also i have no interior heat and when i turn the engine off water is leaking from the pressure. and i hear some poping noise coming from the drivers side, sound like its running hot but the temp reads 80 degrees have anyone experience this before and thank you for the help.