Vanos?
 

2011 535 ix almost 200k stalled at stop light. Restart with rough idle ,no power , check engine light. And drivetrain malfunction warning. Codes 131501 which is the vanos i believe. the others were for the valvetronic 133e10 and misfires cylinders .1-6. So im thinking my vanos is spent but wonder if theres ways to confirm this. Car will restart and idle smoothly initially but gets rough when gas peddle is applied . Thoughts? Thank you, Jeff

Replaced intake vanos and all is back to normal

Thanks for the conclusion. Glad you got it fixed