So I got my steering wheel to work!
- Final result!
I connected the Pin 3 of the clock spring T16 connector to the BCM T73c/13 Pin. Pin 4 goes to +12V. Don't bother the colors of Pin 3 and 4, the're the old wires from my original harness. Didn't feel like buying a service cable set from VW just to get the new pin connectors so I just took them from the old one. Could be good to mark them for future reference though.
My BCM is a 6C0 937 089 B
BCM PQ26 Hi4R H07 0065
- Clock spring harness before retrofit
- Clock spring after retrofit
- T73c/13
- BCM connector T73c
- Clock spring, front facing
- Clock spring, outgoing connector
I bought a new MFSW harness since the old one doesn't have the connector for the buttons.
The original one was 6C0 971 584 B
The new one is a 6RD 971 584 D, replaces 6C0 971 584 C
To be honest I'm not 100% sure which one I needed, but the one I got didn't work plug and play.
- Original airbag harness, 6C0 971 584 B
- New MFSW airbag harness, replaces 6C0 971 584 C
I had to modify it, because the horn didn't work afterwards. The gray wire occupied the horn-connector and went into the connector at the buttons. The blue/white horn-wire also went into the connector for the buttons.
So I removed the gray and blue/white wires from the button-connector, that didn't affect the function of the buttons, all worked perfectly. Then I cut the gray and blue/white wires and soldered the gray one together with the long blue/white so it could reach it's location in the airbag. Then the horn worked again! So I reduced the wires from the button-connector from 5 to 3, but it didn't affect anything. So that made me think if this is the correct harness, but it doesn't matter as long as it works. REMEMBER THOUGH, NOT TO MODIFY THE AIRBAG WIRES!! Those are the green and black twisted ones, Pin number 5 and 6.
- Modifying harness
- Modyfing done
- Original airbag harness
- New MFSW airbag harness
After coding with VCDS everything works fine!
I still have the original steering column with cruise control and menu buttons, and the menu buttons on the stalk works as before. And no lost non-compatible functions on the steering wheel.
- Steering column, cruise control and menu buttons (still working after retrofit)