If it is leaking from the connector you should buy the updated part from M-B and replace it. These were notorious for leaks but since you said it only started leaking after you dropped the pan I assumed you had a leak at the pan gasket. Just visit your local dealer and pick up the updated connector, they should all stock them.
You can sign up for the EPC online for free:
http://epc.startekinfo.com/epc/
You do need to give them a CC but the charge is $0.