Welcome to Bimmerfest -- The #1 Online Community for BMW related information! Please enjoy the discussion forums below and share your experiences with the 200,000 current, new and past BMW owners. The forums are broken out by car model and into other special interest sections such as BMW European Delivery and a special forum to voice your questions to the many BMW dealers on the site to assist our members!

Please follow the links below to help get you started!

Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 3 Series & 4 Series > E46 (1999 - 2006)

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

Thread Tools Display Modes
Old 06-21-2011, 03:56 PM
323ifever 323ifever is offline
Registered User
Location: Los Angeles
Join Date: Jun 2011
Posts: 1
Mein Auto: 99 BMW 323i
Unhappy rough idle/misfire, could it be the coils?

Hi, recently my 99 BMW 323i has been misfiring when starting up. It would make a popping/cracking noise under the hood, and then would stop. However, it does sometimes have rough idling, and after idle, it would have no power it would only go to 20 MPH, when the gas pedal is pushed down all the way. The no power occurs when stopped at a red light/ or slow traffic, not completely parked.

We checked everything from the coils, to the battery, to antifreeze, to the O2 sensors.

We changed the O2 SENSORS, the water pump, gaskets, washer reservoir, hoses, but this is for the cooling system....only.

Does anyone know what could possibly cause this? And, what are the potential solutions? Please, Help! This doesn't happen every time, but every so often it does...Usually everyday, and some times it runs smooth, other times it doesn't.

Last edited by 323ifever; 06-21-2011 at 03:58 PM. Reason: added info
Reply With Quote
Old 06-21-2011, 04:21 PM
Steelcitybeemer Steelcitybeemer is offline
Liebe mein bimmer!
Location: Kaneohe, HI
Join Date: May 2011
Posts: 131
Mein Auto: 2003 325i
Again, another thread where codes would be most advantages.
2003 325i... Stay easy
Reply With Quote

See More Related BMW Stories

323i, 99, bmw, idle, rough

Forum Navigation
Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 3 Series & 4 Series > E46 (1999 - 2006)
Today's Posts Search
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump

All times are GMT -7. The time now is 09:45 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
© 2001-2015 performanceIX, Inc. All Rights Reserved .: guidelines .:. privacy .:. terms