Auckland dominated much of the match but failed to convert a handful of chances until finally finding the back of the net twice in quick succession just after the hour mark.
Spanish signing Gustavo Souto carried on his good form to open the scoring with a lob on 61 minutes and, just six minutes later, fellow Spaniard Manel Exposito was brought down in the box, allowing Adam Dickinson to double the lead from the spot.
“It’s good to start with a win and it was a pretty good performance,” coach Ramon Tribulietx said.
“We actually missed about five chances in the first half so it was a bit frustrating. But we dominated possession for long periods and managed to put two away so we have to be happy.”
Mont-Dore counterpart Stephane Drahusak thought the New Caledonia champions stood up well to Auckland and felt they could have pocketed at least a point.
“We’re happy to have kept Auckland to 0-0 up until half-time, but it’s disappointing not to have taken something from the match,” he said.
“We went a goal down and then we couldn’t react quickly enough to prevent the second goal which came very soon after the first.”
The OFC Champions League returns this week with Solomon Warriors hosting Ba on Wednesday and Mont-Dore welcoming Dragon for the franchophone derby on Friday. The other two matches will take place on Saturday with Hekari meeting Amicale at home and Auckland making the short trip to crosstown rivals Waitakere.
Match Summary Mont-Dores vs Auckland City click here