I have an 84 300 d turbo.i need to replace or rebuild all tha actuators behind the dash for my A/C.I cant get any vacum to operate the door locks or shut off the engine.Ive diagnosed and gone to a shop and this is the problem.Anyone done this? any suggestions on were to get parts.Thanks

 

I repaired the door locking system on my '85 last summer. I found AutohausAZ to sell quality parts for a reasonable price. MercedesSource has some good videos on YouTube. You will probably also want some vacuum diagrams. There are also many others. I spent two plus weeks researching the job before turning the first screw.