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General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

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Old 03-16-2015, 02:09 AM   #1
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Join Date: Mar 2015
Posts: 10
Engine or transmission ??

Hey guys... I'm new and this is my fist post..I have a 2004 330 CI auto, convertible, when you first start the car you must let it warm up for 5 to 10 minutes no matter what the temperature is outside, or if you don't you can press on the gas and the engine will rev way up & the car will barely move, also if not warmed up when first taking off ( sometimes)it kind of does this puttering thing as if you are pressing and releasing the gas very quickly. It seems like putting it in sport mode helps. I have changed the oil/oil filter& fuel pump & filter .
2.another problem I'm having with it is about One out of every six starts The engine will not turn over, you have to turn the key completely off and then do it again, it AlWAYS starts on the second try. it has been suggested that I try changing the coil packs and spark plugs, but it was also suggested that the fuel pump/filter would fix it, it did not.

Last edited by randthomp78; 03-16-2015 at 10:41 AM.
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Old 03-21-2015, 08:10 PM   #2
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Join Date: Dec 2008
Location: Louisville, KY
Posts: 104
My Ride: 2006 330CiC
Try posting this in the general section; you might get better response since these are not convertible specific problems. I'm just guessing here but could your lack of power be a plugged/failed catalytic converter?
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Old 03-22-2015, 08:56 AM   #3
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Join Date: Jul 2008
Location: USA
Posts: 1,907
My Ride: 2001 330Ci
The starting issue could be a bad ignition switch. I'd find a shop that specializes in BMWs. You're obviously in over your head!
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