The 43-year-old Portuguese will be dealt with by the Hampden Judicial Panel on Thursday over two charges that carry a minimum three-game suspension each.
And there is a real chance he will land in hot water again after being sent to the stand during the Jambos' 1-0 home loss to Kilmarnock and letting fly at referee Alan Muir.
BBC TV show Sportscene blurred pictures of Sergio's outburst during their Sunday night highlights package with the explanation that reading his lips could cause offence.
But it is understood he told Muir to "f*** off" after the referee had been called to the touchline by fourth official Paul Robertson.
And he will be hauled over the coals again providing Muir's official report, which landed at Hampden yesterday, makes mention of foul and abusive language.
Hearts boss Paulo Sergio is in danger of being hammered with a touchline ban of 10 games or more by the SFA
Sergio is up in front of the beaks on Thursday for stating he didn't want referee Iain Brines to be the fourth official for an SPL tussle with Dunfermline after he'd controversially disallowed a goal in Hearts' League Cup loss at Ayr.
He will also have to account for reports that had him hinting Brines should be put through a lie detector test over his explanation for chalking off that strike at Somerset Park.
Should Sergio cop two three-game bans for those remarks, they will remain on his record and be taken into consideration during any future cases.
If he is found to have said something offensive to Muir or his fellow officials after being ordered from the dug-out on Saturday, he could land a further four or even five-match suspension.
The SFA's new disciplinary rules give them the right to hit managers with anything up to a whopping 20-game ban for abusing officials under Rules 70 and 71, but it is highly unlikely they would take such drastic action against Sergio.
Hearts are already on a war footing with the SFA over Brines and the £100,000 fine they received in the summer for long-term disciplinary problems and seeing their manager stuck in the stand for a long period would leave owner Vladimir Romanov spitting blood.