61 13 ... Control Unit Plugs, 25-, 35-, 55-, 83-, 88-Pin

Unscrew Phillips screws (1).

Lever out pin sensor (2) with seal (3) in direction of arrow.

Fig 1: Identifying Screws, Pin Sensor, And Seal

Courtesy of BMW OF NORTH AMERICA, INC.

Pull off seal (3).

Pull out housing lock (4) in direction of arrow and unlock.

Fig 2: Identifying Seal And Housing Lock

Courtesy of BMW OF NORTH AMERICA, INC.

Press down arrester hook (5) on appropriate contact and pull out cable with contact.

Special tool 61 1 134 for mini flat spring contacts

Special tool 61 1 135 for standard flat spring contacts

Fig 3: Pressing Down Arrester Hook

Courtesy of BMW OF NORTH AMERICA, INC.

Special tool 61 1 151 for double flat spring contacts (double arrester hook)

Fig 4: Using Special Tool 61 1 151

Courtesy of BMW OF NORTH AMERICA, INC.

Special tool 61 1 152 for double flat spring contacts (special arrester hook)

Fig 5: Using Special Tool 61 1 152

Courtesy of BMW OF NORTH AMERICA, INC.