View Full Version : How to clean Idle Control Valve (ICV) 5xxi i6


BMW 528
10-22-2007, 07:42 AM
I saw this thread and I thought is better to clean up this ICV.

It's not that easy but...

First, you need tools, with that lonk metal yo need to push wipe on hose which goes from MAF to ICV:

http://img86.imageshack.us/img86/5125/image030pl8.jpg


...and some Qtips:

http://img86.imageshack.us/img86/1061/image029ml8.jpg


....then you have to remove filter housing:

http://img80.imageshack.us/img80/4161/image028ye1.jpg

...then you have to pull dipstick...

http://img80.imageshack.us/img80/4652/image025xj2.jpg


...and vacum hose:

http://img86.imageshack.us/img86/4590/image024tq3.jpg


...then you need 10 mm socket to unscrew those 2 bolts, then just push it down with a long screwdriver:

http://img84.imageshack.us/img84/8893/image023pz7.jpg


...remove this plastic:

http://img84.imageshack.us/img84/5459/image027af6.jpg

....because it's gonna be easy to work:

http://img237.imageshack.us/img237/7624/image026qc3.jpg


ICV was blocked:

http://img84.imageshack.us/img84/2823/image016bc8.jpg

http://img237.imageshack.us/img237/851/image017fl6.jpg




....i thought it's better to put some tape:

http://img86.imageshack.us/img86/7049/image018vs0.jpg



I usee WD40 and some Qtips:

http://img80.imageshack.us/img80/3897/image020bs4.jpg

http://img80.imageshack.us/img80/8918/image021yp4.jpg







Now engine runs much better when's cold (30% better) and it's have better axeleration. I can garantee you, even tranny shifts better.

JOB DONE!

:)

rayg2
02-07-2008, 09:01 AM
hi, the pictures for the location of the idle valve sensor were great!
i did everything you show until i got to actually removing the valve.
i didn't take it out because i wasn't sure if there was a hose clamp inside the
intake manifold, and if i just pulled it out would i be able to get it back in
without taking off the manifold? also does the rubber strap stay on the valve
when it's taken out?
thank's, ray

BMW 528
02-10-2008, 05:13 PM
Yes, there is a ring/rubber that would stay in ICV when you remove it, then when you want to put it back, you just try to find a hole with finger and just push the ICV.
I recommend you to buy tha ring/rubber.

christopherpm
02-13-2008, 06:28 PM
...and you often do this kind of work in your slippers?

BMW 528
02-14-2008, 08:54 AM
...and you often do this kind of work in your slippers?



Why not :lol:

rayg2
02-22-2008, 10:02 AM
thanks, i did get it out and back in. it was actually stuck closed, and therefore prior to cleaning, it would not idle at all. it just stalled if i took my foot of the gas. that probably saved me $600. if i brought it to the dealer they would of replaced the part. it cost around $160. it wasn't an easy job the first time, but i could do it now in less then an hour. thanks, ray

BMW 528
02-22-2008, 06:25 PM
thanks, i did get it out and back in. it was actually stuck closed, and therefore prior to cleaning, it would not idle at all. it just stalled if i took my foot of the gas. that probably saved me $600. if i brought it to the dealer they would of replaced the part. it cost around $160. it wasn't an easy job the first time, but i could do it now in less then an hour. thanks, ray



I'm glad to hear that!

RUBIKSCUBE528E
03-17-2008, 01:04 PM
i have an idle problem when my 84 e28 idels around 2000 rpms and when its been running for awhile it will randomly rev up to around 3000 rpms
if i did this would it fix my idle problem?

Paintballistic
05-23-2008, 01:20 PM
i had no luck getting mine out in the m54. is there anything that holds it on or in place? i got frustrated and gave up.