Andretti did not return to Le Mans until his full-time Formula One career was over. In 1982, he partnered with son Michael in a Mirage M12 Ford. They qualified in ninth place, but the pair found their car being removed from the starting grid 80 minutes before the start of the race, as an official discovered an oil cooler that was mounted behind the gearbox, which was against the rules. The car had passed initial inspection four days before the race. Despite protests and complaints, Andretti's entry was removed altogether, replaced by a Porsche 924 Carrera GTR. Their return in the following year was more successful as they finished third. The father/son team returned in with Mario's nephew John. They finished sixth in a factory Porsche 962. Following Mario's retirement from full-time racing, he decided on a return to the circuit to add a Le Mans victory to his achievements. He returned in with a second-place finish. He said in a 2006 interview that he feels that the Courage Compétition team "lost [the 1995] race five times over" through poor organization. He had unsuccessful efforts in the following years with a thirteenth place in , and then a DNF (Did Not Finish) for . Andretti's final appearance at Le Mans was at the 2000 race, six years after his retirement from full-time racing, when he drove the Panoz LMP-1 Roadster-S at the age of 60, finishing 15th.