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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 5 Series > E39 (1997 - 2003)

E39 (1997 - 2003)
The BMW 5-Series (E39 chassis) was introduced in the United States as a 1997 model year car and lasted until the 2004 when the E60 chassis was released. The United States saw several variations including the 525i, 528i, 530i and 540i. -- View the E39 Wiki

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  #26  
Old 07-08-2014, 02:29 PM
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diggyd357 diggyd357 is offline
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Mein Auto: 97 528I
Quote:
Originally Posted by nedmon View Post
I had a similar issue.

I finally removed the idle speed control and cleaned it up with brake cleaner. I put it back in and the traction light went away.
Idle speed control ?? Where is that located ??

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  #27  
Old 07-08-2014, 04:28 PM
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diggyd357 diggyd357 is offline
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Never mind... The ICV duh.... I just didn't associate cleaning the ICV with traction control, but I do have a slight stumble when taking off and a rough idle at cold start so it makes sense

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  #28  
Old 07-16-2014, 08:09 AM
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diggyd357 diggyd357 is offline
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OK....asc light is now off ! Why ???? How ???? Good question.... I've been chasing a rough idle/stumble issue and in doing this I changed spark plugs, fpr vacuum hose and crank position sensor. I also cleaned the throttle body real good. I started the car up a minute ago and thought to myself "something looks different"....it was the absence of the ASC light, lol. So I can't say what did it, but I'm glad its off. Now I gotta get to the bottom of this stumbling issue that has only gotten worse with everything I've done. Thanks to everyone who took the time to lean a hand. I GREATLY appreciate each response.

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  #29  
Old 07-16-2014, 01:26 PM
alex5er alex5er is offline
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Mein Auto: e39 1997 528i
FYI: A loose and or broken cable from the throttle body to ASC actuator (next to the MAF sensor) can/will set the ASC light on.
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  #30  
Old 07-16-2014, 07:37 PM
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16valex 16valex is offline
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Mein Auto: 530I/5SC 97-528/5
Quote:
but I do have a slight stumble when taking off and a rough idle at cold start so it makes sense
Quote:
I had a blow out on the front driver's side Sunday so I have my 20" rims all around except for the front driver's is a stock 15" wheel. Any chance that's what is setting off the ASC ?
You have answered your own problem.
Take care the tires situation, stop chasing your tail.
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