2006 iveco daily 35s12?

hello ,thanks for your reply, the air filter has been changed.i cant answer whether the pipes are collapsing or not,because i am not a mechanic.the van runs well on accelerating but just black smokes.do you think it could be the intercooler pipes. thanks

chris
October 2012

has air filter been changed recently? are turbo intake/intercooler pipes collapsing when under load?

k
October 2012