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Home >> BMW >> 2012 >> 135i 2D Convertible, Standard Trans >> Repair and Diagnosis >> Electrical >> Charging Systems >> General Electrical System - Repair >> Plug Connection, Terminal, Power Distribution Box >> 61 13... Crimping Micro Quadlock System contacts (MQS)
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61 13... Crimping Micro Quadlock System contacts (MQS)

Special tools required: 

To crimp MPQ contacts, use pliers 61 4 321 (1) in conjunction with crimping head 61 4 324 (2) from crimping set 61 4 320 .

NOTE: Pliers (1) open automatically as far as they will go when handles are pressed together.
Fig 1: Identifying Crimping Head And Hand Pliers
G10022255Courtesy of BMW OF NORTH AMERICA, INC.

Open pliers (1).

Fold up contact carrier (2).

Insert MQS contact (3) in contact carrier (2).

Fold back contact carrier (2).

Fig 2: Inserting MQS Contact And Pliers
G10022256Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: Follow procedure for CUTTING AND STRIPPING INSULATION  from cables.

Close pliers (1) one notch.

Insert stripped cable (2).

Close pliers (1) fully.

Fig 3: Inserting Stripped Cable
G10022257Courtesy of BMW OF NORTH AMERICA, INC.

Open pliers (1).

Open contact carrier (2) gently and carefully remove MQS contact.

Fig 4: Opening Contact Carrier
G10022258Courtesy of BMW OF NORTH AMERICA, INC.