Help Audi A3 limp mode

[Reece wayne]

hello I'm new to this and I don't no if I'm posting in the right place I have a Audi A3 sline 2.0 tdi 2007 had it 2 weeks and got problems drive it back from black pool 150 miles and it was fine 2 days later the boost is kicking in her late after 3000rpm and no power goes into limp mode and I have to turn engine on and off I reli don't no what going on I have a code reader it said po299 turbocharger under boost and p2108 throttle actuator controls module performance please help

 

[JRock247]

Best posting this in the A3 section mate.