The 740i and 530i are done for this round of maintenance.
For the 7, I added a radiator to the list. BMW cooling systems SHOULD be counted as yearly maintenance items due to the large amount of plastic in the system. Since the radiator was last replaced in the 2004, along with water pump, I decided to replace it; and for $130 bucks, it was a no brainer.
The 5 is idling EXTREMELY well with the new temp sensor. The one I pulled was trashed . . . not sure why.
Checked for codes and both cars had not code or leaks (YAY!!). Time to take them out on the Interstate and test them. Mrs. Zero will be happy to have her 7 back (still have to do the transmission additive and suspension stuffs).