Bartlett and his fellow bowlers ensured Auckland claimed four bonus points, but they may be only consolation after the batsmen continued to struggle.
Fresh off five wickets in the first innings, Ian Butler grabbed another two this afternoon and Neil Wagner also chimed in with a brace to leave the Aces in real trouble.
Meanwhile, rain may have washed out most of the first day of Northern Districts' match against Canterbury, but a result is very much in play after the two sides' bowlers made up for lost time.
The defending champion Knights would have been surprised to take a first-innings lead after slumping from 125-2 to 200 all out - with wicketkeeper BJ Watling falling for eight in his bid to put pressure on test incumbent Kruger van Wyk - but they will resume tomorrow 130 runs ahead with seven wickets in hand.
That's because Canterbury's batsmen found life even more difficult on a decent track at Seddon Park. The Wizards were in need of some magic after being reduced to 35-6, before Todd Astle (53 from 45 balls) and Gareth Andrew (89 from 69 balls) set about rebuilding the innings.
With Canterbury dismissed 14 runs short of the hosts' total, Joseph Yovich and James Marshall began to build a significant lead with a second-wicket partnership of 109. But Marshall was stumped late on for 61 and nightwatchman Brent Arnel fell cheaply to leave ND on 116-3 at stumps.