Well we don't need to go any further now. I found the problem. I had the plug for the EHA plugged into the Aux Air valve and vuice versa. Putting these connections on the proper components helped a LOT! But why would MB put the same exact size style of connector on two very close components like that? I'm just glad I didn't do any damage to the "brain" ( I don't think I did, but now the Engine will not start when it's warm)...one thing after another...but that's a new thread...
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