BMW X3 Service & Repair Manual: Notes for opening contacts and locks of different plug contact systems

Special tools required:

• 61 0 300
• 61 0 400
• 61 1 100

IMPORTANT: The contacts can be changed on ultrasonically welded connectors (1).

Ultrasonically welded connectors (1) must be replaced completely.

Ultrasonic-welded connectors (1) can be identified by the welds (2) on their longitudinal side.

NOTE: Special tools referred to in the repair instructions below are contained in the following special tool sets:

• Unlocking and pressing-off tool 61 1 150 is replaced as of 09/2005 by 61 0 300 (BMW) and 61 0 400 (MINI)
• Release and pressing-off tool 61 1 100 (engine)

Repair instructions for opening connector housings and removing contacts of different connector systems:

Connector system D 1.5/D 2.5:

• CIRCULAR CONNECTORS, 7- OR 8-PIN, SYSTEM D 2.5
• CIRCULAR CONNECTORS, 13-PIN, SYSTEM D 2.5
• CIRCULAR CONNECTORS, 20-PIN, SYSTEM D 2.5
• CIRCULAR CONNECTORS, 4-, 7-, 10-, 12- OR 25-PIN, SYSTEM D 1.5/D 2.5
• IN-LINE CONNECTORS, 15-PIN, SYSTEM D 2.5
• IN-LINE CONNECTORS, 8-, 12-PIN, SYSTEM D 2.5
• IN-LINE CONNECTORS, 30-PIN, SYSTEM D 2.5
• IN-LINE CONNECTORS, 20-PIN, SYSTEM D 2.5

Connector system JPT/MDK/DFK:

• IN-LINE CONNECTORS, 2-PIN, SYSTEM JPT ELA
• IN-LINE PLUGS, 2-PIN, SYSTEM MDK 3 PLUS 2.8
• IN-LINE PLUGS, 4-PIN, SYSTEM DFK ELA

Connector system Elo/Elo Power:

• INLINE PLUGS, 4-, 10-PIN, SYSTEM ELO
• IN-LINE CONNECTORS, 6- TO 50-PIN, SYSTEM ELO
• INLINE PLUGS, 3-, 6-PIN, SYSTEM ELO-POWER 2.8

Connector system LSK:

• CONNECTOR HOUSING LSK CONTACT

Connector system MQS/MPQ:

• INLINE CONNECTORS, 6-, 8-PIN, SYSTEM MQS
• INLINE PLUGS, 2-PIN, SYSTEM MPQ 2.8
• CONTROL UNIT CONNECTORS, 25-, 35-, 55-, 83-, 88-PIN
• IN-LINE PLUGS, 24-PIN, HYBRID SYSTEM MQS/MPQ
• SOCKET HOUSING 42-, 43-PIN, HYBRID SYSTEM MQS/MPQ
• SOCKET HOUSINGS 2X21-, 2X27-
• PIN, HYBRID SYSTEM MQS/MPQ, ELO/ELO POWER
• IN-LINE CONNECTORS, 30-PIN, HYBRID SYSTEM MQS/MPQ
• SOCKET HOUSINGS, 5-, 8-PIN, SYSTEM MQS/MPQ
• SOCKET HOUSING (RADIO CONNECTOR), HYBRID SYSTEM MQS/MPQ