My Capless filler has a modified stubby holder over it, which keeps the dust and crap away which paid for itself when i must have knocked the button and the flap was open once and again when the hinge point came apart, it now has a bit of red dust but not in the filler pipe................ shouldn't be a vacuum in this system really as at the bottom of the filler opening just under the lip there is a hole where if is overfull it will drain the top off and it will run out into the cavity and down the drain pipe.......
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2015 WK2 CRD Laredo( ZG, WG 2.7 )
Your Never Too Old To Learn Something Stupid.
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