The Whites have recorded seven straight wins at the Reebok to move within striking distance of the top six.
But Dougie Freedman's side have collected just three wins on the road all season and Bogdan says time is running out to put it right.
"The home form is brilliant and now we just have to make sure that we do the same away," he told The Bolton News.
"It's always a bit harder when you don't have the full crowd behind you, but I honestly don't know what the full reason is that we are not getting results away.
"I do know it needs to change if we are going to get to the play-offs. We are two points away and there's a big opportunity on Saturday to close the gap even more. We just have to concentrate on our defending like we did against Wolves."