car dead need help???

ive got a 2006 a6 c6 2.7 tdi s-line
ive got a know problem with my turbo having sticky vanes had it for a few months now.i put some mr muscle in there and it stopped limp mode for a few days then i tried some revive turbo cleaner and that worked for about a week so my next step was to remove the turbo and dismantle and clean. but 2 days ago while driving i lost all power down to about 5 mph managed to limp home about a mile pulled up outside my home and on idle the revs were going from 0-3000 revs up and down very wildly.so switched off tried to start again but just turns over without starting so i next plugged my carista dongle in to get the fault codes.the fault codes are as follows.
p0299
p0046
p100d
p100e
p161f
p0235
p1577 does anybody know whats wrong as im scratching my head here and about ready to set the thing on fire with a gallon of petrol and a match anybody with experience of this please point me in the right direction

yes i did and they all seem to relate to the turbo with regards to boost pressures to low or to high

trying at the moment to find a guide to remove the turbo.but no luck yet

do you think with a inspection of the vnt and a clean will solve my problem or is there anything else i should look at??

no its bpp