Astra L4-1.8L (2009)
Important: Do not damage upholstery covering.
5. Remove the active head restraints, on vehicles without the head restraint guide sleeves.
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Carefully guide the 2 small slotted head screws on the outer side of the head restraint guide sleeve until the lugs (I, arrows) are pressed
together.
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Pull out the head restraint guide sleeve upwards.