My girlfriends Touran has "blown it's turbo" several times. The first two times the dealer repaired it and then,on the third occasion, replaced the engine. I don't know if it was a complete engine or a short one, assuming that they do things this way. Anyway the new engine has today expired making this the fourth such extinction. Is this a common problem? The dealer/Volkswagon have been absolutely fine about this todate and have provided a replacement car while the repairs have been done.