Retrofit "MFSW" for POLO 6C, 2015 [help]

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CKarhu
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Drives: Polo 6C 2015
Location: Sweden

Re: Retrofit "MFSW" for POLO 6C, 2015 [help]

Post by CKarhu » Sat Jan 12, 2019 9:04 am

massimo23 wrote:
Sat Jan 12, 2019 7:59 am
Hi CKarhu. I have a polo 2017 with bcm 89b and mulitifunction steering while with cruise controls.
So it should be possible to do.
You would need new steering with the controls and coding in the bcm and gateaway.
Hi Massimo!
Thanks for clearifying that!
Did you retrofit or was it alredy fitted?
I have some issues with my retrofit, the buttons don't work at all.
My car has cruise control and menu buttons on the stalk, 6C0 953 501 C/6C0 953 513 C
I was hoping to get the buttons working, and then replace the stalks if necessary.
I only checked the "Multifunction Steering Wheel (MFSW) via LIN-Databus 2 active" box, is there something else I need to do with VCDS?
Thanks in advance!

Dink
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Re: Retrofit "MFSW" for POLO 6C, 2015 [help]

Post by Dink » Sat Jan 12, 2019 11:45 am

From what has been asked loads of times in various places.

You cannot get the cruise control buttons working on a MFSW on a 6c.

It was possible to get it as a factory option but the only retro fit option is the stalks.

massimo23
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Re: Retrofit "MFSW" for POLO 6C, 2015 [help]

Post by massimo23 » Sat Jan 12, 2019 1:27 pm

i see in the adaptions there is a section:
Multi_function_steering_wheel_control_module Coding Value:
Steering wheel tiptronic switch:
not installed
Temperature sensor:
not installed
Version:
CCS
development_1:
active
development_2:
not active
MuFu-variant_Skoda:
not installed
MuFu-variant_Seat:
not installed
This is from my coding.
Do you see the mfsw in the gateaway subsystem ... should be
Multi Function Steering Wheel Control Module:
Subsystem 1 - Part No SW: 6C0 959 442 A HW: 6C0 959 442 A
Component: E221__MFL-TAT H06 0023
Coding: 280000
Mine came installed with the car from factory.
Dink could be right about retrofitting the cruise control buttons not worrking.

massimo23
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Re: Retrofit "MFSW" for POLO 6C, 2015 [help]

Post by massimo23 » Sat Jan 12, 2019 1:37 pm

This is my bcm and coding.
System description: BCM PQ26 Hi4R
Software number: 6C0937089D
Software version: 0093
Hardware number: 6C0937089
Hardware version: H10
Serial number: 006238046367
ODX name: EV_BCMA0
ODX version: 006002
Long coding: 0300084042530A7B4F844000402703C800005B0253010000000000000000

CKarhu
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Re: Retrofit "MFSW" for POLO 6C, 2015 [help]

Post by CKarhu » Mon Jan 14, 2019 4:10 pm

So I got my steering wheel to work!
20190113_153947.jpg
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
20190110_193909.jpg
Clock spring harness before retrofit
20190111_140823.jpg
Clock spring after retrofit
20190112_130129.jpg
T73c/13
20190112_102711.jpg
BCM connector T73c
20190110_194518.jpg
Clock spring, front facing
20190110_194426.jpg
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.
20190105_164134.jpg
Original airbag harness, 6C0 971 584 B
20190111_140942.jpg
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.
20190112_203429.jpg
Modifying harness
20190112_215713.jpg
Modyfing done
20190110_192848.jpg
Original airbag harness
20190110_192912.jpg
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.
20190111_141549.jpg
Steering column, cruise control and menu buttons (still working after retrofit)

massimo23
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Re: Retrofit "MFSW" for POLO 6C, 2015 [help]

Post by massimo23 » Mon Jan 14, 2019 5:49 pm

Wow, Great Job.... So what is your next retrofit :wink:

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ciclo
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Re: Retrofit "MFSW" for POLO 6C, 2015 [help]

Post by ciclo » Mon Jan 14, 2019 7:46 pm

CKarhu wrote:
Mon Jan 14, 2019 4:10 pm

After coding with VCDS everything works fine!
Great! 8)

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