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Odd whine on acceleration N51
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12-04-2017, 08:43 AM | #1 |
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Odd whine on acceleration N51
So I'm new to BMW, bear with me please. Searched the forums but didn't see anything similar.
During acceleration, particularly under light acceleration, there is a noticeable whine that increases with engine speed. Will also occur with vehicle stationary and in neutral. It sounds a lot like a bad transmission whine or the whine power steering makes if going bad. The catch is that this is a manual transmission car, so it can't be the tranny, plus it happens in neutral too. I took it to the dealer, and they said that it is normal and nothing to be worried about. But it still doesn't seem normal to me. One of the reasons I got this car was the amazing sound that straight six makes, but I'm having a hard time enjoying it due to the whine. Anyone have any ideas? Not sure what I should do. For reference, the car is a 2013 E93 328i N51 SULEV manual transmission with 36k miles.
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12-04-2017, 10:38 AM | #2 |
Don
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100% normal. That is just the gearbox. I have an auto and it was the first thing I noticed when I bought the car. Also sketched about it and took into to my indy and said it is normal.
Nothing to worry about, you'll get used to the noise |
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12-04-2017, 11:22 AM | #3 | |
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Quote:
You can pull the belt and start the car, see if the noise goes away. Water pump is electric and depending on your car, the power steering might be as well. I could drive to the store and back without a belt. Just don't think the tiny battery in the trunk would last that long. LOL |
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12-04-2017, 12:38 PM | #4 |
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Could be worn out belts. I did mine at around 65k, 36000 seems early so probably something else.
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12-04-2017, 03:37 PM | #5 |
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My 2013 N51 MT does this as well. I wouldn't worry about it.
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12-05-2017, 10:30 AM | #6 |
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Honestly you will get used to it and not notice any more. It's weird, my engine seemed quieter at first and all I really heard was the whine. Now I notice my engine more and notice the whine less. If it really bothers you, the BMW Performance Exhaust masks it nicely.
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12-06-2017, 12:41 PM | #7 |
Don
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Do you have a video of the noise? Maybe yours is different and a bit louder?
I have a res + muffler delete so I barely hear anything except that beautiful inline 6 rumble |
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12-06-2017, 11:11 PM | #8 |
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Honestly, you'll hear the engine in stock form as long as you get on it a bit. Mine whines pretty loudly, but only when I'm puttering around (did I just make up a word?), shifting at 2500 RPM or so and using light throttle (how I normally drive lol).
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