OK I found the leak or at least I found where the diesel is pooling nothing on the ground yet. The diesel is pooling in the holes that my injectors set in. The holes were full to the top and starting to run out a little on the hot parts below thats why I started smelling it I think. I see the metal supply lines and I also see some black braided lines running in and out of each injector. I guess these are return lines?? The metal lined don't seem to be the leakers it looks like the braided black lines can anyone fill me in as to what to do next. I would like to fix myself if possible. Not all of the injector holes were full but over half of them were. One had what looked like engine oil in it crank case oil, I guess it could have been old diesel but I am not sure, could there be crank case oil on top of the injectors??

 

I forgot to add this is a 1999 E 300 Turbo Diesel

 

Thanks, I hope that is what it is I will replace them soon as possible. I am not sure how long it took to fill them up but I was unable to see anything filling them back up while I was watching. It must be a very slow leak.