Olympic champion from 2006 Schneiderheinze alongside brakewoman Lisette Thone started their World Cup campaign in fine form taking victory in round one in Igls.
The German No.3 pair have failed to reach such heights since with a second in leg three in Winterberg their best – however they returned to the top of the podium in style in Switzerland.
Lying third after recording a time of 1:09.31minutes from their first run, Schneiderheinze pulled off the quickest time of the second to make an impressive jump up to first place.
They clocked 1:08.53 for an overall winning time of 2:17.84 – just 0.09 ahead of Cathleen Martini and Janine Tischer and denying the German No.1 crew their fourth straight World Cup win.
And Sandra Kiriasis and Franziska Bertels ensured it was a German one-two-three with the No.2 duo moving up from fifth to third with an overall time of 2:18.05 – 0.21 behind Schneiderheinze.
The biggest losers on the day were Canadians Kaillie Humphries and Emily Baadsvik, who lying first after an opening run of 1:09.29, dropped down to fourth following a second outing of 1:08.90.
Britain had two pairs in action in St Moritz with first-choice Paula Walker and Gillian Cooke ranking 13th overall and Victoria Olaoye and Kelly Denyer 17th on their World Cup debut.