He earned 3 international caps for the German national speedway team.

[3] In 2008, Dilger won the German Junior Championship and was nominated as a track reserve at 2008 Speedway Grand Prix of Germany, but was replaced by Kevin Wölbert.

[4] Also in 2009, Dilger rode for Kolejarz Opole in the Polish Speedway Second League.

He then joined Polonia Piła in Poland for 2011 and 2012 and returned to British speedway with the Redcar Bears in 2012.

[7] He was on Dackarna's roster for the 2023 Swedish speedway season and in 2024, riding with Daniel Spiller for the Herxheim Drifters, Dilger took third place in the German pairs championship.