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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 5 Series > E60 (2004 - 2010)

E60 (2004 - 2010)
BMW 5-Series (E60 chassis) was first seen in the Unites States in the fall of 2003 with a 2004 Model Year designation. The E60 is now available as a 528i, 528xi, 535i, 535xi, 550i and a 535xi sports wagon! -- View the E60 Wiki

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  #1  
Old 09-19-2014, 07:33 PM
redz24 redz24 is offline
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Location: USA
 
Join Date: Sep 2014
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Mein Auto: 08 535xi
Idle issue

Noticed something odd today... At cold start my 08 535xi idled a little weird. I started it and idle bounces around a bit under 1000 rpm then settled, wonderin if this is something to worry about? Fuel pump n turbos/waste gates were adjusted prior to extended warranty expiring, any advice? I'm curious it was briefly idling weird then settled n drove fine..


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  #2  
Old 09-20-2014, 05:05 AM
mattadata mattadata is offline
2010 535i
Location: Dallas, TX
 
Join Date: Aug 2014
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Mein Auto: 2010 535i
Does it do it during each cold start? Or does it do it during warm start as well? How long before it settles down? Let it sit for at least 12 hours, then keep an eye on the exhaust during a cold start. Any strange smoke coming out the back?

Sounds similar to my issue. 2010 535i. Only on cold starts it would idle rough for about 10 seconds and blue smoke would come out the exhaust. After that, it would idle and drive fine until the next cold start. BTW....mine is still in the shop so they can figure out what the root cause is.
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Old 09-20-2014, 04:21 PM
redz24 redz24 is offline
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Mein Auto: 08 535xi
I only noticed it yesterday and today when I first started it, nothing happened.. Something to keep an eye on. Let me know what the verdict of your dilemma is


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Old 09-20-2014, 05:28 PM
funglenn funglenn is offline
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Location: San Antonio TX
 
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Posts: 34
Mein Auto: 535xi
Sounds like carbon buildup. I had similar issues -- cleaned the valves, replaced plugs and ran great!


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  #5  
Old 09-21-2014, 09:19 AM
redz24 redz24 is offline
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Mein Auto: 08 535xi
Same issue this morning upon cold start... Started the car and and idle went up to 1000 rpm then settled n bounced between 700-1000.. I seen a little bit of white smoke out the exhaust.. Recommendations anyone? I was thinkin check coolant, put octane booster in the gas n take it on the highway to clear it out.. Any input would help guys, thanks


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  #6  
Old 09-21-2014, 11:13 AM
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blue boy blue boy is offline
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VANOS getting adjusted / involved according to my Indy can make rough idle
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  #7  
Old 09-21-2014, 01:00 PM
duperstar duperstar is offline
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Could be a leaking injector if it's cold start only. Had the same issue. Twice.


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Old 09-21-2014, 02:41 PM
redz24 redz24 is offline
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It is very odd.. The engine is not really surging with the bouncing in rpm.. Might have my Indy shop check it out he just did my water pump n thermo


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Old 09-21-2014, 05:16 PM
bmwblack55 bmwblack55 is offline
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Put a bottle of techron and see if it works


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