[Guide] How To Retrofit MFSW And Cruise Control To T6 Eu6 2019 Startline - Also Hacking DSG Paddles For CCS

Hi guys, can anybody help with this ACC, I have a EU5 t6 origin without ACC, now I have installed acc, buttons, wires, have made coding but I have a dtc in ECU and orange spring on dash, what I making wrong? Byte 5 in ecu looks like in the foto (tried more variants)
Ecu was flashed rod acc in dump
Maybe anybody had the same issue?

IMG_7280.webp

IMG_7267.webp
 
Hi
Can I use part number mine have 5G0969442K as the adaptive cruise control switch for my t6 transporter that already has front assist and radar.
I just need to add the ACC button and code it some how.
 
Hi
Can I use part number mine have 5G0969442K as the adaptive cruise control switch for my t6 transporter that already has front assist and radar.
I just need to add the ACC button and code it some how.
 
Hi,
I've added a MFSW to by 2017 Trendline T6 which already had Cruise Control on the stalks, so fitted a wheel without CCS as I didn't want to mess about moving the wiring (I've also got a Skoda Octavia with the same setup, so am used to it being stalk mounted).
I've got everything fitted and as far as I can tell everything seems to be working ok, but... I as soon as the van starts moving I get an error on the dash which shows the CCS logo with an exclamation mark.
Any idea's why?
Switching the CCS on and off on the stalk doesn't clear it.

PXL_20260417_073900916.webp

*EDIT - so rereading the thread, i've double checked the 12v supply (seem fine) as I thought it could be that.
But, I'm wondering now if it's because I've connected the LIN wire to pin36. I seem to have the same problem Romar had with his. Time to rip the dash apart again I think...
 
Last edited:
Disclaimer - use this information at your own peril - I may have got things wrong.

I am hoping this "how to" will be a one stop place for all the information, owners of poverty spec, 2019, EU6, T6's need, to fit a multi function steering wheel (MFSW) and to enable the cruise control system (CCS). I have also list the coding needed. Most of this can be found in various threads on here and I thank all the contributors for all the time they have put in to enable us to do this especially -
Dnoermann, Pauly, Deaky, Loz and Dellmassive.
The problem is, the information is fragmented and gets confused with T5s and T6 EU5 vans which tripped me up more than once.

There are 6 sections -

1 - Introduction

2 - Selection of parts

3 - Fitting and Wiring up the Parts

4 - Coding to get it all working

5 - Problems Encountered

6 - Not for the squeamish - how to modify DSG flappy paddles to work the CCS "Set" and "Resume" functions which also increase or reduce speed by 1 MPH at a time.

Introduction (skip this ramble if you only want the guide)

My van is a company van that will be returned (as standard) in about 3 years so there was no point me spending much on this project. We only get the most basic poverty spec vans but this one actually has most of the kit I have been yearning for, for many years. The days of trying to wind down the passenger window on a hot summer day are at last gone. Electric windows + mirrors, air con, and now even reversing sensors but still no CCS. It is a £150 inc. VAT option on a £22000 van for crying out loud. I just missed out on a T6.1 that has CCS and an MFSW as standard. Then I thought "if they won't even let me have the chance to pay for it , I will cobble something together myself". Thus started my quest for a cheap CCS. My friend Ebay came up with a brand new, genuine VW CCS kit costing £133 (from vwdirect) that consisted of new stalks and a wiring loom with instructions. I then entered the world of coding, after a lot of research, I decided VCDS or VCP were my 2 choices that could do the job and diagnose any other problems I may cause or encounter. Even second hand they were way out of my budget so I went to the darkside and bought a clone of an old VCP (5.5.1) on Ebay for £20. I fitted the stalks and wired them up and then came the dangerous part of the job. With a nervous sweat on, I tried the VCP. The magic smoke was still contained but I could not get the BCM to accept my code so stopped before any damage could be done. A month later the £30 Aliexpress VCDS new style Hex V2 (19.6.0) arrived and despite my worst fears the BCM and instruments actually accepted the codes without any drama. However my joy was short lived as the ECU would not accept its code and just gave me error 30 no matter what I did - bonnet open, door open ignition on, engine running - nothing worked. Those cunning boffins at VW had introduced some barrier on this new van that no-one that I could find, online, had bypassed. So close, I was one bit away from CCS heaven. After a week or two I decided to give the VCP another shot and success, it coded the missing bit first try. Time for a test drive but no icon appeared on the display. A bit of diagnosing found no signals from the buttons which I quickly traced to a wrongly inserted fuse in the +12v wire I had fitted. At last all working fine apart from a CCS fault now and then that cleared with a key cycle. A few months later and I was still loving my CCS but wanted more - adaptive cruise control (ACC) was the new holy grail. So the research started again. I soon found that despite having all the kit needed, apart from the MFSW, that the VW boffins had made it an impossible dream - at this time. But after seeing all those lovely MFSW's, I wanted one and they seemed so easy to fit, in fact easier than changing the stalks but far more expensive. The hunt was on and Ebay came up trumps - a brand new leather MFSW for a T6 costing £130 but it had flappy paddles. I new it had the correct buttons but how would the paddles affect things. I took the gamble and after being told the wheel is scratched and I can have 30 Euros off the price, I paid the Lithuanian Ebay seller (600ene). It arrived a week later in a box that had almost lost its precious contents through a completely ripped edge of the box. Despite that the wheel was almost perfect so I definitely recommend him if you need a genuine wheel at a bargain price. I had already ordered an £11 MFSW harness from Aliexpress that arrived about the same time but it was the wrong type, so £30 and a couple of days later I had a suitable harness, done the button hack and armed with the right parts and was ready for the install. As to be expected things did not go smoothly but in the end I got it all working, even with the modifications which are a great improvement.
Thanks for a great and detailed write up Chang. I have followed this and am so close to getting it all to work
The cruise buttons work when checking via vcds in both the 01 and 09 modules, but I keep getting the errors below. The buttons for the radio and MFD are all working fine.

ECU Module 01
25110 - Cruise Control Switch (E45)
P0568 00 [035] - Implausible Signal
Not Confirmed - Tested Since Memory Clear

BMC Module 09
1 Fault Found:
00671 - Cruise Control Switch (E45)
014 - Defective
Freeze Frame:
Fault Status: 01101110

When I activate the cruise via the button I get the icon come up, but have and exclamation mark to the right.

The only difference in parts I have used are the button pack to match my golf r mk7 wheel. The buttons I purchased were VW POLO CADDY TRANSPORTER T6 MULTIVAN R-LINE Steering Wheel Buttons 6C0959442C to fit the wheel.

Am I missing anything obvious?
 
Thanks for a great and detailed write up Chang. I have followed this and am so close to getting it all to work
The cruise buttons work when checking via vcds in both the 01 and 09 modules, but I keep getting the errors below. The buttons for the radio and MFD are all working fine.

ECU Module 01
25110 - Cruise Control Switch (E45)
P0568 00 [035] - Implausible Signal
Not Confirmed - Tested Since Memory Clear

BMC Module 09
1 Fault Found:
00671 - Cruise Control Switch (E45)
014 - Defective
Freeze Frame:
Fault Status: 01101110

When I activate the cruise via the button I get the icon come up, but have and exclamation mark to the right.

The only difference in parts I have used are the button pack to match my golf r mk7 wheel. The buttons I purchased were VW POLO CADDY TRANSPORTER T6 MULTIVAN R-LINE Steering Wheel Buttons 6C0959442C to fit the wheel.

Am I missing anything obvious?
Just to update that the issue related to the squib ring which only had 4 connectors for the mfsw buttons. The horn had been re-routed to be triggered via lin bus so was able to repin the grey wire from the buttons to the pin for the blue / white wire that the horn used.
So one thing further to check when doing this is the squib ring and to swap the pin in the steering wheel loom as above. The loom was from a Golf R 060d2b81-e197-41e8-8386-f52cc6a1c83e.webp
 
Hello,

I have a 2016 Volkswagen Caravelle T6 Trendline, 2.0 TDI Euro 6, 7-speed DSG,

My car already has:

* Original multifunction steering wheel (MFSW) with radio/menu buttons.
* DSG gearbox.
* No factory cruise control.

My plan is to:

* Replace my original steering wheel with a Volkswagen Passat B8 multifunction steering wheel with cruise control buttons and DSG paddles.
* Keep and reuse my original T6 airbag.
* Use cruise control through the steering wheel buttons, not through the steering column stalk.

I would like to know exactly which wiring harness I need to retrofit cruise control to my van, and also which connectors and pin numbers the wiring harness should be connected to.

I’ve read many forum threads where people mention that the horn stopped working after the retrofit. From what I understand, this only seems to affect vans that originally did not have multifunction steering wheel buttons. My van already has an original multifunction steering wheel.

I really want to retrofit cruise control, but here in Sweden, where I live, nobody seems to have much experience with this type of retrofit. I would be very grateful for any help, guidance, wiring diagrams, or pin information you can provide.

Thank you very much in advance!
 
Does anyone have a 2016 Euro 6 T6 with factory MFSW but no cruise control, who has successfully retrofitted cruise control via the steering wheel?


Specifically:


  • Which wiring harness did you use?
  • Which pins did you have to add?
  • Was T73b pin 36 already populated?
  • Did you have to add the wire from T41 pin 11 to T10 pin 1?
  • Did you have any issues with the horn?
 
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