In the 80's G1 episode "Cosmic rust" it is stated that Transformers can get sick from microorganisms that devour Cybertronian metals. Iron Hide from the Bay movie Transformers Dark of the moon is melted by Sentinel Prima's Cosmic rust gun. But this is not through any form of radiation.
My inspiration to this question was watching a series called Chernobyl, and several Transformers visiting Chernobyl in the Bay Transformers Dark of the Moon, where the Autobots find a piece of equipment while being under attack by Decepticon Shockwave. Speaking of Shockwave it has been stated non canon that the explosion at Tunguska in 1908 was caused by him, while he crashed on earth.
Can a Transformer, from whatever generation, get sick or die from radiation?