Question Audi A4 3.0 v6 tdi manual 2005

Hi guys new to the forum
Would ike to see hi and thank you to all who puts there support into this forum

I have a Audi A4 3.0 tdi on a 2005 currently 195000 miles

Problems encountered very recently

Engine light on pulling code up to do with intake control circuit bank 1 failed
Missfire rough idle
Loss of pulling away power
Oil dilution on a mega scale as in car holds 6.9 litres of oil it dropped out nearly 12 litres
Oil all over top of engine where oil cooler erg sits
Excessive deisel knock on one cylinder
Roughly a litre of oil removed from inter coolers
Turbo very very sight tingling on wine down
Last but not least oil in expansion tank

Asumptions so far
Replace swirl flap actuator bank one
Leaking injector injectors this causing knock misfire

Oil cooler bust excessive oil leakage around cooler or seals under cooler

System full of oil in places oil shouldn’t be
Things I have already done

Change actuator clears code
Dropped all oils and coolant

Cleaned out intake manifolds
Intercoolers intake pipes from turbo through to manifolds removed egr cooler cleaned ready for replacement

On with taking out oil cooler ready for replacement

I have tested injectors for leakage and st least one is leaking past exsessively

So the question I am asking is
am I on the right tracks to get this car back on the road or is it coming towards end of life
The car is in very clean condition inside and out
With these problems the cars system won’t pull up any other codes only actuator
Any help advise question deeply welcome and much appreciated
Thank you to all