Pulling cutting wire into vehicle

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Grip wire with pliers
(If accessibility is bad, stick wire with wire starter 2 150 267 through adhesive bead.)
Wire end (1) must be bent towards window glass.
Heat wire end (1) and use it to pierce adhesive bead (2).

Fig 1: Identifying Wire End And Adhesive Bead
Courtesy of BMW OF NORTH AMERICA, INC.
Pull the wire approximately 1.5 m into the passenger compartment