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61 13... Notes for opening contacts and locks of different plug contact systems: Notes

WARNING: This page is about a different car, the 2011 BMW 750xi, 2011 BMW 750Lxi, 2010 BMW 750xi, and 2010 BMW 750Lxi. However, it is still accessible from the selected car via links, so may be relevant.
Abbreviations of contacts and what they mean:
ELA Strand seal
D 1.5/2.5/3.5 Round contacts with 1.5 mm, 2.5 mm or 3.5 mm diameter
MDK Miniature double flat spring contact
JPT Junior Power timer
DFK Double flat spring contacts
Elo Electronic contacts
Elo Power Electronic contacts for heavy load
MQS Micro Quadlock system
MPQ Micro Power Quadlock
MLK Mini laminated contact
SLK Sensor laminated contact
LSK Load current contact
MLK Mini laminated contact
Mcon Multi contact
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.
Fig 1: Identifying Ultrasonic-Welded Connectors And Welds
G04727423Courtesy of BMW OF NORTH AMERICA, INC.
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
  • Release and pressing-off tool 61 1 100 (engine)