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General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

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Old 09-25-2013, 03:39 PM   #1
pyro225
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Join Date: Aug 2006
Location: UK
Posts: 465
My Ride: 328ci
Disa flap jammed open

I took my disa flap off and the spring mechanism seem broken it is jammed open what are the implications of this!
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Old 09-25-2013, 05:48 PM   #2
Poundingsand
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Join Date: Jun 2013
Location: Los Angeles
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My Ride: 2005 E46 330i
The implication is that you need to replace your DISA. How many miles on the vehicle, and was it ever changed before? these things don't last forever, from what I've heard. Okay to run it as is, but you may lose a little bit of low end grunt, the mileage may be slightly affected, and (I believe) it may idle a bit rougher than with a good DISA. Make sure the pin is still in it, and hasn't dropped into your manifold.

If you plan to run the DISA you have for a while before replacing it, make sure it has a good seal to the manifold, and perhaps remove the flap and the pin before you put it back in, to prevent parts from dropping off and getting sucked through your motor.
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Old 09-25-2013, 06:10 PM   #3
Tangent_
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Before you order parts, verify that the actuator itself is actually bad and that it isn't just a broken lever or something. Check here, specifically step #11. http://germanautosolutions.com/diy_t...sa_kit_diy.php
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