Hello,

I have a 1975 300D (W115) with an MW IP with mechanical govenor.

The fuel leak can be seen only with the car running and the area that is "wet" is in between the 1st and 2nd element connections. I decided to try and fix the leak by first replacing the copper sealing rings in pipe connections # 1 and 2. I followed the procedure outlined in the FSM but no luck the leak is still there. All the information I have found to date says that I should not remove the nuts that hold down the element connections. Has anybody have any recommendations? Does this mean the IP needs to be rebuilt?

Thank you for your help.

Marc-André