I read a couple of posts on here and on Bimmerformums and I've decided to go the fuel system cleaner route a la dirty injector. I'm currently running 2-11oz cans of BG44K through. Hopefully this will clear it up.

Car runs great. Only thing I'd say is there's a very faint miss during idle but you would probably never notice it unless you're staring at the Tach with your ninja eye. Even gas mileage seems unaffected. On a recent road trip to Toronto and back, I averaged 21.3MPG with the family and some luggage and things in the back.

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2006 X5 3.0L - Schwarz Black/Truffle Brown
Stock
But I keep it clean