No, those are totally wrong exit polls.
The AfD is polling at 7% according to ARD.
What do you mean, "totally wrong"? Those are FGW's numbers for ZDF. Infratest dimap has a bit different numbers for ARD. Later in the night we'll see who got it closer.
A difference of 2% is huge for a middle-sized party like the AfD. One oughta mention that ZDF is way more left-wing than ARD.
It'll take much time time to tally the votes as the Bremen citizens have five votes that they can allocate between different parties and candidates in open lists. Plus, municipal advisory council were also elected in Bremen today, using the same complicated open-list voting method.
Fair enough, it might well be that we don't have the final results until tomorrow.
I don't think it's in any way reasonable to evaluate the exit polls from FGW and dimap based on what posters here think about the relative left-right-positioning of German TV channels. Just look at the track record of exit polls:
Federal election 2017Lower Saxony 2017Bavaria 2018Hesse 2018In each case the difference between the 2 is small. Just looking at the AfD result, they had exactly same % in Lower Saxony (underestimation) and Bavaria (overestimation). ZDF exit poll gave a 0.5 lower number for AfD in federal election than ARD did, but they both overestimated, so ZDF was actually closer. Finally in Hesse ZDF had AfD 1 point higher than ARD had, and indeed got it almost right. So based on the 4 latest "tests", ZDF exit polls seem to capture AfD numbers better than ARD, regardless how left-wing the sender may be.
Further, I would think that any pollster or sender certainly strives to have as accurate exit poll results as possible. Any political bias wouldn't make sense as your exit poll quality will be directly compared to the real results anyway. So no matter what you think about polling in general, at least in this the pollster's jobs depend on how accurate they were.
What is true though is that 2 point difference between exit polls for a small party is rare. Must be related to the turnout model as ARD shows turnout as 66% while ZDF lower at 62% which is also a big difference.