I am sure your cam sensor fault is on target, but I wonder about the fuel trim fault. I had misfire faults and it netted me the following.

Leaking intake manifold gaskets, leaking valley pan and gaskets, rear breather hoses beginning to fail.

Now the good news. My extended warranty company is solid and approved the repairs minus the hoses. Not to shabby at all.

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2013 X5 xDrive3.5i Premium
2002 530I Sport Package
2001 X5 4.4i
2001 M3