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E46 (1999 - 2006)
The fourth generation 3 Series (E46 chassis) was introduced in 1999 and set the standard for engineering and performance during it's years of production including being named to Car & Driver's 10 best list every one of those years! ! -- View the E46 Wiki

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  #1  
Old 09-26-2012, 08:32 AM
roaddaddy roaddaddy is offline
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Location: Alabama
 
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Mein Auto: 325i conv.
chugs

I have a 2005 325ic that when I start it in the morning, wants to chug(best desciption) and cough for just a minute, then the idle goes up to about 17-1800 rpm. After just a moment it settles down to it's normal idle and runs fine and starts fine for the rest of the day. I'm thinking maybe mass air sensor but I'm open for any thoughts at this point.
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  #2  
Old 09-26-2012, 08:48 AM
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MalibuMafiaV MalibuMafiaV is offline
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Mein Auto: E60 M5 & Stage 3 Audi S4
Quote:
Originally Posted by roaddaddy View Post
I have a 2005 325ic that when I start it in the morning, wants to chug(best desciption) and cough for just a minute, then the idle goes up to about 17-1800 rpm. After just a moment it settles down to it's normal idle and runs fine and starts fine for the rest of the day. I'm thinking maybe mass air sensor but I'm open for any thoughts at this point.
How many miles?. Know if it has any vacuum leaks? is the check engine light on?
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  #3  
Old 10-02-2012, 03:52 PM
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j_schroeder j_schroeder is offline
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Mein Auto: 330ci
Mine does the same thing( 01 330ci) and I have no cel. It deffinatly varies with the temp. I'm pretty sure its a vaccum leak but I haven't looked into it yet so I would be curious to hear what you guys have to say.

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Old 10-05-2012, 11:05 PM
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marinekilz marinekilz is offline
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Mein Auto: 02 e46 325 xi
does it blown any smoke out the the exhaust at initial setup when it chugs?? Could be your oil seperator. with the car running, open the oil cap slowly. there should be almost no suction when you do this. if you have excess suction like your breaking a seal, that is where I would start
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