 Known issue on TDI owner club - cam shaft and lifters fail (not hardened correctly)... BRM Engine code 1.9L Costs to repair was $2000.Prevention: have timing belt replacement, at same time ask for mechanic to assess the valve lifters (followers)... for scarring, pitting and worse yet total failure! Will lose power, will trip all sorts of codes Check engine, progresses to worse!Sorry VW does not offer any ear to this problem.. I am going to japanese engines! Never again for me.If it happens report it to NHTSA ODI (google it).best wishes.....