Can anybody help to show me a 1992 300SD General Engine Vacuum diagram? I try to find a leak in the vaccum line that causes the engine continue to run after the switch is turned off. Does this kind of leak affect the A/C compressor to be turned on?
Also, I am seeking advices to remove and reinstall the instrument cluster. I also need to know if anyone knows any reputable individual who can recondition the instrument cluster for the 1992 300SD.

Any help is appreciated.