Quote:
Originally Posted by chinese_food
If i'm not mistaken, wouldn't low octane fuel cause that ticking noise?
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Low octane fuel will not cause a ticking noise @ idle at all.
Yes the N63 is direct injection. All BMWs direct injected motors are noisy, it is normal for it to sound the way they do in the video.
For the 2nd time. That ticking noise is the fuel tank vent valve. That is why you hear it sometimes and sometimes you do not. Its just actuating through its normal cycle. It actuates under different conditions. Ambient temp, fuel level, etc all have an affect on when it will actuate. Thats why you hear it sometimes and sometimes you do not