Thank You for the answer .

If you have a Tech answer a post and he ask back a question, there is good reason.

The AZ guys story about the years on the E320 are incorrect . So we just wanted to verify the year by asking which engine ..
..as you can now see , the one years difference makes all the difference in the sensors, along with the type engine ..and the 104 has two sensors ..early and late , as you noticed on the connectors.