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The BMW Range
5 Series
E39
What is this black box for?
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<blockquote data-quote="IanDaddy" data-source="post: 438168" data-attributes="member: 18207"><p>That is the adjuster valve , proper German name is DISA (Differential Air Intake, something like that). When at low rpm the flap is closed (charged) for better torque. Goggle DISA , you will get lots of videos and info. </p><p>There has been catastrophe when the pin holding the flap broke and got sucked into the engine causing great damage.</p><p>Older generation engine than M54 also has DISA valve.</p><p>Bro John,mind to share how much you paid for the valve ?</p></blockquote><p></p>
[QUOTE="IanDaddy, post: 438168, member: 18207"] That is the adjuster valve , proper German name is DISA (Differential Air Intake, something like that). When at low rpm the flap is closed (charged) for better torque. Goggle DISA , you will get lots of videos and info. There has been catastrophe when the pin holding the flap broke and got sucked into the engine causing great damage. Older generation engine than M54 also has DISA valve. Bro John,mind to share how much you paid for the valve ? [/QUOTE]
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The BMW Range
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E39
What is this black box for?
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