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  1. 04-10-2023 05:25 PM #1
    Tron2013A5
    Tron2013A5 is offline
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    Nov 04 2021
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    Who can tell me what this is?

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    Was replacing spark plugs and coils today and came across a very destroyed thing attached to a vacuum line. Picture below but not my car. It has a t25/30 screw that attaches for the coil harnesses. Circled in red. Doesn't seem to cause any big problems just wanting to figure out what it is to fix it. Screenshot_20230410_202051_Chrome.jpg

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  2. 04-10-2023 05:40 PM #2
    old guy
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    Dec 28 2006
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    14483
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    '13 A5, '24 Tiguan SEL R-Line
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    Western Maryland

    It is a vent line that allows the intake manifold flapper plate solenoid to operate. It has a filter in the opening that tends to disintegrate.
    '03 A4 5-MT Motoza tuned Frankenturbo F21L With full supporting mods. Sold (and missed dearly).
    '13 A5 6-MT Needs more Fun Stuff: Neuspeed PM / 3.0 TDI Intercooler / H&R OE Sport Springs / Bilstein B8 Shocks / TyrolSport Brake Stiffeners / ECS Short Shifter / S5 Side Skirts / RS Grille
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  3. 04-12-2023 08:58 AM #3
    Tron2013A5
    Tron2013A5 is offline
    Junior Member Two Rings
    Join Date
    Nov 04 2021
    AZ Member #
    638155
    Location
    Norfolk, VA

    Quote Originally Posted by old guy View Post
    It is a vent line that allows the intake manifold flapper plate solenoid to operate. It has a filter in the opening that tends to disintegrate.
    Appreciate it. Found the part because of this description. Thank you much!

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