Checks to carry out before replacing your turbo and to prevent possible breakage following its change: Check the injector seals. Remove the air inlet duct to the turbocharger in order to note whether or not the compressor wheel nut is present: - If the nut is present, check the axial and longitudinal play and if the fins do not touch the compressor housing. If the nut is missing, it is absolutely necessary to find it before reassembling the new turbocharger. Check the vacuum pump and its inlet screen filter.
If it is too dirty, it must be replaced, otherwise clean it. Check all hoses and conduits including the exhaust and check that there are no foreign bodies, narrowing or pinching. Remove and clean the air exchanger (intercooler) and the breather s.