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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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#1
05-03-2007, 12:58 PM
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Idle low after startup...E39 97 528i
same symptom as posted from prior person but didn't help me too much "When I first start my car in park in idles perfectly smooth at about 700-800 rpms. When engaged in reverse it is particularly rough feeling through the steering wheel and even a little through the body (reverse with foot on brake). " and dome light gets dimm and bright like engine is about to die (than it did died). Anyway I replace plugs, no engine check light, had orig battery from the beginning... is there way to increase the idle? or to fix this problem? with out costing a $$$
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#2
05-03-2007, 02:12 PM
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clean the ICV
__________________
from volvo to bmw 
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#3
05-03-2007, 02:24 PM
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I will try that tonight...
Thank you
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#4
05-03-2007, 06:58 PM
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okay got it...clean ICV and idle still running low
any other thought?
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#5
05-03-2007, 07:01 PM
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just a question, HOW DO YOU CLEAN THE ICV?
__________________
 2007 E60 530i - Current 2002 E39 530i - RIP  BMWCCA MEMBER #397411
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#6
05-04-2007, 10:10 AM
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carb cleaner... you can pickup at local auto shop stor
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#7
05-04-2007, 01:29 PM
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Have you checked for an air leak between the MAF and throttle body or a vacuum leak somewhere after the throttle body (intake)?
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#8
05-04-2007, 02:20 PM
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I took the MAF apart so many times... I didn't see any air leak... if there were any air intake between the MAF and the body... I think idle would run higher than 200~400
- Stuff I checked this morning... I unplugged the ICV pipe going to MAF and plenty of air was sucking in...If I would block the pipe... idle would run little higher.. let go, idle would run low.
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#9
05-06-2007, 09:33 AM
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Well this morning I got the ICV out again... clean untill I can hear clinking noise... well guess what... it's working now...
full speed!!!!! Thank you for your help
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#10
05-12-2007, 11:32 PM
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OK got the pictures for removing the ICV
Fresh copy today... PICT0381.jpg just picture of my 97 528i PICT0382.jpg yellow lines are the removing points PICT0383.jpg yellow unscrew PICT0384.jpg look after removing MAF PICT0386.jpg remove 2 torque screws from throttle body PICT0387.jpg remove 4x10mm bolts PICT0388.jpg remove 2x10mm bolts screwed into black metal strap. ICV holder... Pull the ICV down and remove from location PICT0389.jpg disconnect the electrical plug on the back side of the ICV by depressing the retaining clip and pulling it out, loosen the clamp screw and remove the hose attached to the ICV PICT0391.jpg once removed the this is what should look like... clean it well with Carb cleaner... also make sure it's dry inside Assembly is reverse
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#11
05-13-2007, 12:03 AM
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dude your the man wow what a bitch to get to huh...so its under the throttlebody ok thnx alot you helped out huge
__________________
 2000 528I AND ALL THAT GOOD STUFF VIVA LA COKA NOSTRA http://www.myspace.com/lacokanostramusic
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#12
05-13-2007, 12:10 AM
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that is a royal pain just ot get to the ICV...
__________________
Sky Hushpower II, Stoptech BBK, UUC V12 Clutch Conversion, UUC LTW Flywheel, UUC 9-Button Clutch, Eibach Sways, CF hood, Zionsville HD conversion UUC EVO3 SSK w/ DSSR, UUC Clutch Stop, DICE, 2point5, Eibach Pro Coilovers, High Flow Cats, Simulated O2
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#13
05-13-2007, 08:03 AM
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well after taken apart 2 times... 5 ~ 8 min tops
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#14
05-13-2007, 08:47 AM
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540i icv is so much easier
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#15
05-14-2007, 02:24 AM
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My fuel milage in all city (orlando) driving has improved from 14.7 mpg to 17.6 mpg + by replacing front Os2's (10 percentage point improvement), cleaning Throttle Body and ICV with carb cleaner, adding Lucus fuel injector cleaner and installing 6 new NKG plugs. With a little mix of freeway driving thrown in and I'm up to 18.7 mpg.
Much better!!
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#16
05-14-2007, 05:42 AM
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I'm thinking O2 sensor this weekend...
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#17
05-14-2007, 05:56 AM
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i've read that only the front two really matter as far as fuel mileage goes.
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#18
07-30-2010, 08:28 AM
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Bookmarked!
__________________
Live the e39..!!  
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