61 13 ... DME master relay connector

Unlock locking flap (1) of corresponding cable.

Fig 1: Identifying DME Master Relay Connector Locking Flap

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With special tool 61 1 136 or 61 1 137 (ejector), press back arrester hook (2) of appropriate contact and pull out cable.

Fig 2: Identifying Arrester Hook And Special Tool (61 1 136/61 1 137)

Courtesy of BMW OF NORTH AMERICA, INC.