Question about 1999 BMW 328 Series

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BMW SERIES 5- LOST POWER

By mistake I add regular gasoline to my BMW 5 series. Week later I star the engine, and I hear a knock from the engine and lost of power was evident, to the point that the car ALMOST STOP WORKING !........I add premiun gas and the problem persist: lost of power and a runn,,,runnn...runmnn.... The engine sounds like it s working hard to keep moving.
I am not using the car, but I wonder if is the Gas?
Miles 70.000
show room condition
1999-

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One tank of regular shouldn't result in what u describe. No engine service/warning light came on (I assume no, or u would have mentioned it). The knock noise from the engine--do u still hear it, or was it just the one time? Too low an octane could result in engine 'ping' or knocking when accelerating. I would change the fuel filter, and scan for any codes stored in the computer, and take it from there. I think u are wise not to drive it until you know more about what is going on. Let me know what u find.

Posted on Oct 23, 2008

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Not the grade of the gas, you may have gotten some dirty gas. clean out the fuel line and change the fuel filter.
add a can of injector clean.

Posted on Oct 23, 2008

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