Speeding ticket germany?

You probably wont get stopped in the airport but if you get pulled over again it might be a problem. I have a German passport (dual citizenship) and i have committed several speeding and u-bahn/s-bahn offenses in Germany and they never caught me in the airport but they tried to charge me when i got caught skipping fair again 3 years later. If they didn't take down your passport number you wont have anything to worry about.