I had the same issue. When the service dept looked at it, they couldn't find anything wrong with it (s be ready for that). The one thing they did they say that the code was set due to a bad camshaft sensor. However, there are 4 of them and they didn't know which one. Hence, they ordered the parts and replaced all 4 sensors and another speed sensor (or something like that). Since then, we've been good.

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SOLD - 08 X5 (Titanium Silver w/Black Nevada with all options).