But new look Wanderers will wonder how they left without at least a point and potentially a first league win at Edgeley Park since 1998.
Former Peterborough favourite Mothersille marked his big money move in the second minute of first half stoppage time before Kyle Wootton wrapped up the points after 89 minutes.
The Hatters new boy deflected skipper Oliver Norwood’s shot beyond Teddy Sharman-Lowe to put the Hatters in front.
Despite Bolton’s opening period dominance Wootton should have netted minutes earlier. But he had the final word with a late close range header from Danny Andrew’s cross.
However, Bolton, who won all five pre-season games, were unlucky as Xavier Simons struck the woodwork after six minutes.
Josh Dacres-Cogley miskicked six yards out while Corey Addai saved from lively Amario Cozier-Duberry and Carlos Mendes Gomes.
Max Conway drilled a stinging drive against the woodwork as Bolton searched a second half equaliser with Addai foiling Thierry Gale before Wootton calmed home anxiety.
