The valve 'in front' of the fuel filter is 'in front' in terms of fuel flow and 'behind' in terms of the fore and aft of the car. It is visible in pictures 2 and 4 and (correctly) appears to have a cap over the valve so should open and close fine. Mine did.
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2012 XC70 D5 SE Lux Geartronic Polestar
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