Yeah, I think C1apton is right. I think that's what it is. But I took it to a bmw mechanic, and he's confident its the dreaded V word (vanos) system making the noise. He claims also that the system is kinda noisy anyways, but I think definetly not like this. I'm taking it to a few more mechanics today, but I guess I won't be 100 percent sure until its opened up and checked out.
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I WANT YOU TO TAKE THE FRANKENSTEIN SH*T, THE DEER SH*T, THE GREEN MONSTER, THE BLING, AND THE BLING BLING, AND I WANT YOU TO ROLL IT ALL INTO ONE
