Warner played no part in Australia's defeats at Trent Bridge and Lord's after being suspended in the weeks before the series for aiming a punch at England batsman Joe Root in a Birmingham bar during the Champions Trophy.
The Manchester crowd were therefore waiting for his entrance on day two of the third Investec Test - and got their wish when Steve Smith (89) holed out in the leg-side to end his record stand of 214 with Michael Clarke (151no).
The Australian captain and Warner took the tourists to 352 for four, 40 minutes before lunch, before the latter (five) edged Graeme Swann on to Matt Prior's thigh and into the hands of Jonathan Trott at slip.
Bizarrely he then decided to review the decision and the replays showed a clear edge.
His retreat to the dressing room was greeted with the England fans waving him back.
In sunny conditions after a prompt start despite earlier showers, Clarke needed almost half an hour - and 15 balls - to add to his overnight 125.
He did so with an edge, at catchable height, for four between slips and gully off James Anderson but then immediately added a much more convincing second boundary from the next delivery - forced off the back foot just in front of point.
Clarke had one moment of fortune, on 136, when Tim Bresnan had him driving on the up through a tight off-side ring - where Swann, at short extra-cover, could only parry a half-chance with his left hand over his head but not as far as Kevin Pietersen behind him.
Clarke's next run took him to his highest score in an Ashes series.
But the same Bresnan plan again very nearly worked soon afterwards when Clarke chipped a boundary agonisingly just over the head of Anderson at mid-off.
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- Graeme Swann