FixVault

61 13... In-line plugs, 20-pin, System D2.5

Special tools required: 

Pull locking slide (1) out of connector (2).

Fig 1: Identifying Locking Slide And Connector
G08509653Courtesy of BMW OF NORTH AMERICA, INC.

With special tool 61 0 303, press down retaining hook (3) of corresponding contact and pull out cable with contact.

Fig 2: Pressing Contact Retaining Hook Using Special Tool (61 0 303)
G08509654Courtesy of BMW OF NORTH AMERICA, INC.