[3] As a result, Riedler and Adolf Slaby (1849–1913) convinced Kaiser Wilhelm II (1859–1941) to allow Prussian Technische Hochschulen to award doctorates.

[3] Although the government did not immediately consent, this effort led eventually to the school's reconstitution as today's Technische Universität Berlin.

He delivered a detailed report on American institutes of technology and their labs which he deemed more suitable for engineering education.

[3] Riedler was actively involved in the early development of internal combustion engines, both for gasoline and diesel fuel.

[3] In 1903 he established the Laboratory for Internal Combustion Engines at the TH Berlin, expanded in 1907 to include investigations of motor vehicles.

[8] In 1897 Riedler received the Grashof medal, the German Engineers' Association's highest honor.

[2][3] The Austrian Engineers' and Architects' Association appointed him honorary member in 1900 and awarded him their gold medal in 1931.