2012 X5 Diesel Turbo Actuator failure, how long until upper turbo fails?

[fwdrofl]

Hello,



I had my X5 diesel lose power (limp mode) on the freeway and throw a CEL, made a whining noise above 2k. I thought the upper turbo was about to fail.



Codes we pulled (before I took it to the dealer)


4D16 - SCR System Efficiency

4530 - Charging pressure control, high pressure state, control deviation: charging pressure too low/positive control deviation
4B81 - Exhaust-gas re circulation-rate control, control deviation
4C8C - Exhaust back pressure sensor before turbine, plausibility

54C6 - Transfer Case; Oil Wear



It's at 111k and has extended 3rd party warranty until 120k. Dealer tells me the turbo waste gate actuator had failed, but that I also had a failed SCR cat, everything would be covered except the cat (so Im out $2700... kicking myself for not just doing full deletes).



Maintenance since ownership at 53k

- Swirl Flap Deletes at 53k

- Waterpump and hoses done at 76k

- Transfer Case/Trans/F&R Diff fluids, gaskets, pan done at 90k

- Glow plugs + glow plug module 105k

- Oil changed every 7.5k (except most recently I let it lapse to 10k, not proud)



I'm very anxious and paranoid that if the waste gate actuator failed and the hoses were super brittle then it was only a matter of time before the bearings on the upper turbo take a dump and then I have an even bigger headache, or if any damage was done to the DPF when this happened. The car sat for a week and when I started it to get on the tow truck I noticed the oil was low, previously it was saying somewhat overfilled but now its less, scared that oil went into the DPF.



I know BMW doesn't care about this possibility and probably just hope it happens after 120k. So I'm just looking for some feedback or advice for how I should handle the car when I get it back, I do love the car and I don't want to sell it.