[F30RiK]

Im replacing my starter next month and I might in the same time upgrade my Big DIsa valve with the I6 automotive upgrade kit.

Is it worth it? I don't have any bad disa valve symptoms but Im scared it will break later on. My car is a 330I 2006 with 110 000 Miles

They said I need Formic acid to re-seal the unit... where can I get that? can I use something else?

[Taskmaster]

Wait, what?

[F30RiK]

If you can't understand it's because you can't answer my question

[David0ff]

Tu peux le chercher enligne aux etats, je pense que je connais qqun a Laval ou tu peux en prendre aussi.
Je te reviens sur ca
http://www.dudadiesel.com/choose_item.php?id=formic

To Axiom - it helps to "melt" and weld the plastic back together once you reseal it

[W37V]

No need to be snarky. We do know what you are talking about. You asking for this specific acid on here makes no sense.

Why don't you contact someone who actually did the procedure?
http://www.e90post.com/forums/showthread.php?t=1217830

[F30RiK]

Merci davidoff
@W37V ; why it make no sense to ask where to find formic acid ? Im not the first one to upgrade my disa valve lol. I can't find formic acid in my area, thats why im asking.

[hassmaschine]

If it ain't broke...

[F30RiK]

Hassmaschine, true. That's why im not sure to do it yet. Lol seems pretty difficult to crack open the disa valve and re-seal it

[rothwem]

I've heard that ant venom contains formic acid.

[TomD335xicoupe]

I think I took some of that in Highschool! It was the sixties you know.

[W37V]

Originally Posted by Rikrikrik

Merci davidoff
@W37V ; why it make no sense to ask where to find formic acid ? Im not the first one to upgrade my disa valve lol. I can't find formic acid in my area, thats why im asking.

Well, initially you didn't quite state it like that. But yes, it does make sense to ask here.

Have you considered some other method of welding plastic? JB weld?