The Proteas completed an historic whitewash of Australia with a thrilling 31-run victory at Newlands last night
South Africa were made to work and sweat for their 5-0 series win after posting 327/8 – the third-highest ODI score at the Cape ground.
Warner scored the highest individual score at Newlands in an ODI with a fantastic 173.
The leading runs-scorer in one-day internationals in 2016 showed incredible form and power in his 136-ball knock.
The lefthanded opener smashed 24 boundaries as he kept the Aussies in the hunt until deep in the game.
Warner was offered little support by Mitchell Marsh and Travis Head, who both contributed 35 runs.
Other than that, he was struggling to keep his team in it with wickets tumbling at regular intervals.
Imran Tahir did the damage up front, when the Aussies looked like they were getting away at 72 without loss.
But fiery leg-spinner struck in the 14th over to remove Aaron Finch (19) and skipper Steven Smith (0).
Earlier, Rilee Rossouw led the South African innings.
He played brilliant shots around the wicket on his way to a superb 122 – his third one-day century.
Rossouw got great support from JP Duminy, who scored 77 in a 188-run stand for the fourth wicket after the Proteas had fallen to 52/3.
David Miller’s 39 boosted the South African innings at the end.