61 13... In-Line plugs, 2-pin, system MDK 3 plus 2.8

Unlock lock (1) on outside at retaining hook and slide out lock (1) to side.

Fig 1: Sliding Out Lock

Courtesy of BMW OF NORTH AMERICA, INC.

With special tool 61 0 316 (61 1 136), unlock contact and pull out cable with contact (1) towards rear.

Fig 2: Pulling Out Cable With Contact Using Special Tool (61 1 136)

Courtesy of BMW OF NORTH AMERICA, INC.