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04-08-2025LAST POST
Hi all,
Thanks to the great community. I am coming back to share my documentary of installing the soft-close door locks to my E90 M3. Please see the video for more detail. And you are welcome to leave any comments or drop me a message!

YouTube video link:

In short, the door locks for F07 5-series GT are used. No coding needed.

Door lock part number (for LHD)
Lock, complete, front left 51 21 7 148 475
Lock, complete, front right 51 21 7 149 436
Lock, complete, rear left 51 22 7 149 447
Lock, complete, rear right 51 22 7 149 448

Wiring material part number
4X Socket Housing 61 13 8 364 516
8X Double Flat Spring Contact, MDK3 61 13 0 070 586
8X Contact Pin, MQS 61 13 1 393 723
8X Socket Terminal, MQS 12 52 7 502 041
4X Flat Contact 61 13 1 387 142
2X Double Leaf Spring Contact 61 13 8 377 731

Good luck on your DIY!
Carl