DSB Materiel Laboratorium MY 1135 (officially numbered 90 86 00-21 135-7) got a unique dark blue DSB livery with yellow stipes and DSB logo in May 2004. The locomotive provides now and then traction for test trains out of Rødekro to Vojens. On 29 May 2004 the locomotive stood in Rødekro with two test coaches attached to it.