Mazda Repair Questions? Ask Mechanics for Answers ASAP
Hi im kevin turbos fail normally for one of two reasons .fereign debris engering turbo and damaging turbine or overheating and failure of turbine bearing .this is normally an oil lubrication issue .it is always recommended that oil is changed apon turbo replacement .i would be more concerned that no cause for failure was found .
Ok i fully agree with you a pcv issue could have caused all your issues.but regardless of this proper and full diagnosis should have been carried out to assertain the intial cause of turno failure ,even if caused but infrequent servicing the future risks should have been explained.that said there are no turbo related tsb on this vehicle so i would recommend going at it from a different angle lets find out what brand the turbo is and contact the manufacturer of the turbo and get in writing that they recommend oil is changed before replacement .
Can i have vin number and il try to find original manufacturer for you
Im assuming its a garrett turbo as most are nowadays
Right im dtruggling to find a brand on your turbo which suggests they are mabye cheap inports .all i can recommend it getting a statement from a company like garrett who only deal with turbos with their recommendations on fitment steps
Let me opt out see if another tech can assist further