my Barricade (07) has problems in the fact that his rear left tire does not rotate well anymore which causes him to not be able to roll.
http://www.tfw2005.com/boards/transformers-toy-discussion/249182-apparently-barricade-most-complicated-transformer-ever.html
You are quite welcome. In all super seriousness, your Barricade may just have broken down due to ware and tare...