Removing MPQ contacts from contact carrier
WARNING: This page is about a different car, the 2013 BMW 550i GT, 2012 BMW 550i GT, 2011 BMW 550i GT, and 2010 BMW 550i GT. However, it is still accessible from the selected car via links, so may be relevant.
Remove contact carrier (1) with MQS contacts from radio connector.
Raise lock (2) on radio connector.
Pull contact carrier (3) out of radio connector.
Press lock (1) in direction of arrow.
Pull secondary lock (2) in direction of arrow completely out of contact carrier (3).
Press special tool 61 0 314 (61 1 135) on inside of contact into contact carrier (2).
Pull wire with socket contact (1) out of contact carrier (2).