New Zealand Formula E driver Mitch Evans has finished third at the first event of the season in Hong Kong after the race winner was disqualified following a post-race inspection of his car.
Germany's Daniel Abt took the chequered flag in the second race of the weekend after long-time leader Edoardo Mortara spun late in the second race of the season
However an inspection of his Audi Sport car revealed that the FIA security stickers on the inverters and motors did not correspond with those declared on the car's technical passport.
The breach of technical and sporting regulations meant Abt lost his first victory and the overall lead in the all-electric series.
Audi said the issue was apparently an administrative mistake that gave them no advantage on the racetrack.
"Daniel drove fantastically on both days and absolutely deserves this victory," said Allan McNish, principal of Team Audi Sport ABT Schaeffler.
"We want the opportunity to be able to clarify all details, that's why we've announced the intent to appeal."
Swedish driver Felix Rosenqvist was promoted to first, while Edoardo Mortara managed to recover from his spinout to take second.
Evans meanwhile finished a further three seconds behind Mortara in his Jaguar to claim the third spot on the podium.
Saturday's race winner Sam Bird now heads the drivers' standings for DS Virgin Racing, with 35 points, two clear of French racer Jean-Eric Vergne.
Evans is sixth on the standings following the first two races of the season.
The next Formula E race is in the Moroccan city of Marrakesh on Jan. 13.