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DIY: Do It Yourself
Post here to share or improve your wrench turning skills! All BMW E46 DIY tips, tales, and projects discussed inside. Learn to work on your car and know the right BMW parts you will need!

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Old 02-03-2012, 10:40 AM   #1
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Join Date: Feb 2012
Location: norfolk
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My Ride: BMW 328i
Idle problems!

Can anyone help...i recently had a battery die on my 328i E46. I replaced it and since then i have had idle troubles. The revs jump about 500rpm at idle up and down almost stalling. The exhaust note is also spluttering. It seems ok at speed. The battery change maybe a coincidence. But i had no problems before. Why has a problem suddenly occurred. The car has had a FULL service at bmw so not plugs/filter etc. Could dirt have got into filter as has had fuel light on. I would take for diagnostic but have spent A fortune on it recently! Can anyone give me a answer based on these problems. Thanks! Stuart.
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Old 02-03-2012, 12:14 PM   #2
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Location: Rochester, NY
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sounds like vanos unit. check out and do the DIY and not pay ~ $2000 at the dealer
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Old 02-04-2012, 06:14 AM   #3
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ok thanks i'll look. If anyone else has any suggesions please let me know....
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