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Old 06-11-2008, 10:22 AM   #1
stolidog
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DISA Valve Removal

In every DIY guide and in every post I have read about taking out the DISA valve, the consensus is that there are two torx bolts/screws holding it in place (when I look at my car it looks like there are only two as well). However, when I went to the dealership to get new screws, the guy told me I needed 4. It looks like they are sold in 4-packs, so hopefully one of you can shed some light on this. The part number i found on realoem was 11611440384. I'm thinking they either just sell them in packs of 4 and the parts guy assumed that I "needed" 4, or.... I found the wrong part number. Any ideas?
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Old 06-11-2008, 11:39 AM   #2
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Originally Posted by stolidog View Post
In every DIY guide and in every post I have read about taking out the DISA valve, the consensus is that there are two torx bolts/screws holding it in place (when I look at my car it looks like there are only two as well). However, when I went to the dealership to get new screws, the guy told me I needed 4. It looks like they are sold in 4-packs, so hopefully one of you can shed some light on this. The part number i found on realoem was 11611440384. I'm thinking they either just sell them in packs of 4 and the parts guy assumed that I "needed" 4, or.... I found the wrong part number. Any ideas?

There is definitely only two on the DISA valve. They may sell a pkg of four for use somewhere else on the intake. Any particular reason why you are buying new screws? You shouldn't need them unless the old ones are torn up. Your part # looks correct though.
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Old 06-11-2008, 12:14 PM   #3
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Well... the top one was siezed in there pretty good and I sorta stripped it I tried to cut corners by not removing the cabin microfilter and the heatshield to the right. Doing that didnt give me the best angle on it and well... thats that. When I try it again, everything is coming out, ive got screw extractors, penetrating oil... you name it.... that screw is coming out!
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Old 06-11-2008, 01:08 PM   #4
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Old 06-11-2008, 05:44 PM   #5
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There is definitely only two on the DISA valve. They may sell a pkg of four for use somewhere else on the intake. Any particular reason why you are buying new screws? You shouldn't need them unless the old ones are torn up. Your part # looks correct though.
Defintely 2 for the DISA valve, and 2 more for the Idle Control Valve that are the same size. As stated, you don't need all four for the valve.
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Old 02-02-2010, 11:31 AM   #6
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I tried to remove my DISA last night and the 5mm female hex bolts were not letting me put my 5mm allen in there and I ended up rounding the interior of the bolt. Is there a special tool that is used to remove these dam bolts? I have a motorcycle with like 50 5mm allens and never had a problem, why does BMW have to F-up something like this and make everyone life harder than it has to be?
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Old 02-02-2010, 11:45 AM   #7
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I tried to remove my DISA last night and the 5mm female hex bolts were not letting me put my 5mm allen in there and I ended up rounding the interior of the bolt. Is there a special tool that is used to remove these dam bolts? I have a motorcycle with like 50 5mm allens and never had a problem, why does BMW have to F-up something like this and make everyone life harder than it has to be?
If I remember correctly, the inside was torx-40, I just did mine recently and I think that was it. It was easy enough to remove the intake and stuff, you shouldn't cut corners. Good luck!
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Old 02-02-2010, 12:58 PM   #8
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so easy!

some times I pull this outta the card deck and show the milled disa cap that never was.

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Old 02-02-2010, 03:52 PM   #9
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If I remember correctly, the inside was torx-40, I just did mine recently and I think that was it. It was easy enough to remove the intake and stuff, you shouldn't cut corners. Good luck!
Are you talking about the DISA or the Idle control unit? The DISA bolts look like they are supposed to be allen...am I mistaken?
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Old 02-02-2010, 03:55 PM   #10
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If your going to pull out the disa, you may want to replace the o-ring before you put it back in as this can lead to a vacuum leak. Happened to me.
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Old 02-02-2010, 04:04 PM   #11
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How do you reconize DISA Issues ? What are the signs or encounters ?
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Old 02-02-2010, 04:31 PM   #12
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How do you reconize DISA Issues ? What are the signs or encounters ?
It's the black box on the side of the intake manifold.

You can determine if it's failing by the valve ticking inside

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Old 02-02-2010, 04:34 PM   #13
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so easy!

some times I pull this outta the card deck and show the milled disa cap that never was.


Where did you find this cap? I want one of those
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Old 02-02-2010, 04:37 PM   #14
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http://forum.e46fanatics.com/showthread.php?t=691291

I am pretty sure it is a t-40. Like I said, I just did it.




Hey Solidjake, I used your video when I did my disa. Thanks for the diy!
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Old 02-02-2010, 04:40 PM   #15
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Hey Solidjake, I used your video when I did my disa. Thanks for the diy!
you're welcome
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Old 02-02-2010, 04:42 PM   #16
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Where did you find this cap? I want one of those
i think he had it made

i am curious though, MachRC, did doing the cap affect any performance, or is it pretty much unnoticeable? I'm thinking about eliminating mine as well.
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Old 02-02-2010, 04:43 PM   #17
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He may have had it made, but if he made a diagram with all of the values it would make it easier to make one
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Old 02-02-2010, 04:48 PM   #18
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Jake,

Belated thank you from me on your disa diy...I think I watched one of you heading to throttle body...and I'll get to that in spring. I also gave up like an idiot before cleaning icv.

And Yes, T-40, not an allen head...though I'm sure the 5 mm fit in fine...that's what stripped the bolt.

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Old 02-02-2010, 05:20 PM   #19
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It's the black box on the side of the intake manifold.

You can determine if it's failing by the valve ticking inside

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Old 02-02-2010, 05:21 PM   #20
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