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BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > General E90 Sedan / E91 Wagon / E92 Coupe / E93 Cabrio > e90 328xi starts slow and makes wierd noise on idle



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      11-26-2012, 04:19 PM   #1
SyL3nTFoRcE
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e90 328xi starts slow and makes wierd noise on idle

Whats going on guys i need some help diagnosing a problem that has been happening frequently.

Sometimes when i start my car it cranks very slowly then it starts and rarely it wont start right away and will take two tries any thoughts?

I also hear a light knocking noise coming from the right side of my car in my wheel well at idle. i know the engine wont be quiet but its wierd my e46's never made these noises or had these issues

Also sometimes at idle the rpm will drop and shoot back up real quick as if it was misfiring but it rarely happens and no codes come up. its been a week since it happened but when it does it does i feel like my car is going to stall out

Any thoughts and advice will be really appreciated

Thank you
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      11-26-2012, 04:43 PM   #2
Kolyan2k
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battery ?
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      11-26-2012, 04:55 PM   #3
SyL3nTFoRcE
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checked it at dealer and had a friend mechanic check it and they all say battery is fine.

I spent 2500$ on changing the red + cable that goes from the battery to the fuse box and also replaced fuse box.

i was thinking maybe its the starter but that wouldnt really effect the car on idle would it?
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      11-27-2012, 01:29 PM   #4
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any thoughts
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