what's that pipe lads? help please

[luki244]

as abowe lads, what does it do. have it connected to vacuum on manifold but not sure what's that for
its beside brake pump.
red arrows pointing it. cheers

 

[vocky]

it's the vacuum feed for the interior heater re-circ flap

 

[luki244]

ok, thank You.
do I need that ? or can I unplug it?

 

[Daz]

Heater flaps won't work if u disconnect

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[luki244]

ok lads thank You.