I took the car to a gentleman who has been a mercedes only diesel mechanic for the last 40 years. He placed a screwdriver to his ear and then placed the tip of the screwdriver to each injector. He said they were all good. He then proceeded to do the same thing to other parts of the engine. He said that since the car has been setting up and not driven much, it is not a big surprise. He also said my vacuum pump was the new style and showed me what the old style looked like. He said he had not seen many like mine fail.

Another comment is that lifters stick more when idling and usually stop when rpms go above 800 to 1000 rpms because of more lubrication forced to the lifters under higher rpms.

Thanks for everybody's input