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2002540i 06-27-2011 04:55 PM

Engine Code

I use my mechanics snap on scanner to check the engine light on my 2000 M5. I am getting an O2 sensor code, and then under Airco, I am getting "40 AUC Sensor"

Does anyone know what that code means? and how to go about getting rid of it?


ard 07-26-2011 07:27 PM

1. Post the specific codes. If you have the Pxxxx codes post them, if you have the BMW specific codes, even better.

2.An O2 sensor code is not necessarily a bad O2 sensor... knowing the other codes, maintenance, etc is essential.

3. Do you have an M5 or an 540 Mpack?

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