Originally Posted by tr0y

Hi All -

Thanks for the forum I am sure it will make my life easier. I just picked up an 84 300D 78K, Grey on Tan from the original owner for 400.00. It a great car but I need to do a little fixing. I brew my own B100 and it is a good high quality fuel, my 6.0 Ford f250 loves it and it passes all the tests I have run it through. So I a not new to diesels just the MBZ

The Good,
Runs and starts like a top
New Battery
New Tires
Perfect body no accidents
Good Interior No rips or tears

The Bad
Oil leak
Vacuum Leaks
AC Compressor is dead
Needs an alignment

What I need help with is how to troubleshoot the vacuum system, I have downloaded the diagrams but I really have never done any vacuum work so

How do I test them ? What tools do I need ? and what should be my results ?

The current symptoms are poor trans performance / hard shifts, no HVAC control other than all hot all the time, door locks don't work but trunk lock does.

Any help would be appreciated.

The oil leak will be fine I am cleaning the underside of the car tomorrow to trace the leak as it is currently an oily mess and I want to clean it up before I try to find the leak.

As for the AC I will R&R the compressor and have the system emptied any thoughts or tips on an R134 conversion for this car ?

I look forward to sharing ideas

regards,

Tr0y