The invention relates to a locking unit for a first flap, a second flap and a carrier, comprising a locking element which can be housed in a displaceable manner on the first flap and which comprises a tappet, and a driveable actuation device which is used to displace the locking element. In a first position, said locking element couples the first flap to the second flap in order to form a unit, and in a second position, the first flap is released from the second flap, and in an intermediate position, the first flap and the second flap are fixed together in the carrier. An active connection between the tappet of the locking element and the actuation element can be formed in said intermediate position.