Hi i have a problem and changed two mechanics

It all started couple months ago when diesel heater start flashing and the fault was turbocharger boost senzor but it did not get better and car went to safe mode and i cant drive more then 2500 rpm. After that thay changed egr valve and then it started to smoke and rpm began to be crazy. They changed turbo boost senzor,twice, check the electrical installation, egr valve and some software update 9970 and dont know what to do next. Did someone had this problem and what should i do?

Tnx

 

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Have you been to main dealer? I would recommend either that or a very well known, reliable Skoda VW repairer. A back street tinckler will fix your car into an early grave!  U less they know these cars well, they will go round and round in circles trying to trace the issue 

That happen to me, start getting the glow plug light flashing once twice a month and loosing power.. read it on vcds similar error to yours,  changed the sensor yesterday so I'm trying to check now.