Fould code

2009 BMW X5
72,000 MILES • 3.0L • V6 • AWD • AUTOMATIC
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MIRAS89
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Hi I have a 3 fouls codes at the time
They are P0012 P0015 P100 and I know what they min but I like to know which sensor do I have to change. I hope not all off them.
Thank you and I'm waiting for your answer
Dec 25, 2015 at 11:07 AM
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WRENCHTECH
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I don't know why you think everything can be resolved as easy as changing a sensor. That's not what codes are telling you. They merely describe a specific situation that has to be further diagnosed.

What engine does your truck have?
Is it an X Drive?
Dec 25, 2015 at 2:27 PM
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MIRAS89
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Yes this is 3.0 l x drive
Dec 25, 2015 at 3:17 PM
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WRENCHTECH
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The P0012 and P0015 both have to do with the Vanos system on bank 1. They are for the camshafts being over retarded. The solenoid could be the issue but numerous other things could be also like the Vanos actuator or the timing chain. It needs to be checked out further. The P0100 is an issue with the Mass Air Flow sensor which could be the wiring, the computer or the sensor itself.
Dec 25, 2015 at 3:32 PM
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WRENCHTECH
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On the camshaft issue, make sure the engine is full of oil and the oil is the correct viscosity and clean as that system operates on oil pressure.
Dec 25, 2015 at 3:33 PM
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MIRAS89
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It is possible that only one thing is wrong but 3 code come up?
Dec 25, 2015 at 3:49 PM
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WRENCHTECH
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No, there is likely 2 things.
Dec 25, 2015 at 3:55 PM
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MIRAS89
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Ok thank you so much for you answers
Dec 25, 2015 at 4:02 PM
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WRENCHTECH
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I would probably try clearing those codes first and see which ones come back just to make sure the MAF code wasn't set accidentally by someone unplugging it with the key on.
Dec 25, 2015 at 4:19 PM
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MIRAS89
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Ok I will try to do that
Dec 25, 2015 at 4:23 PM
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MIRAS89
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Ok I try to clean all codes but one of them is still active P0012 intake (A) Camshaft Position - Timing Over-Retarded (Bank 1)
What you suggest to do now? Sensor?
Dec 25, 2015 at 6:32 PM
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WRENCHTECH
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It's probably time to get some qualified help to look at it.
Dec 25, 2015 at 6:34 PM