i have a man with lack of power all fuel tank and lines are clear new tubo and boost presure switch fitted intercooler clear ex brake free and working run vechiclewith exhaust off still the same no fault codes in engine potentiometer working from 0-100 percent revs get to 2500 rpm but vehilce has no pick up in itself

ivan, March 2011

i'll be honest i'm not a M.A.N mechanic ..but is the fuel filter ok ,,,also are all the intercooler hoses and the intercooler ok ...generally with intercooler hoses you will hear a rasping but the intercooler you may have to blank 1 end and pressurise the other and check for leaks

norb, March 2011