How can I turn on the lights on D-class? Updated December 17, 2020 22:33 How can I turn on the lights on X-class? Related articles What colors are available on D-class? What happens if you stop producing this version of the D-class? Will I be able to find parts? What is the max weight limit for D-class? Which bike rack would work for D-class? How much does the D-class weigh? Comments 0 comments Please sign in to leave a comment.