heated seats retrofit

[southpawboston]

You will need to match the coding of the new unit to what your old unit had. VCDS or OBDEleven log, just copy over the long coding.

Yeah, coding has to match, but I guess my point (without saying directly) is that swapping out one unit for the same unit + heated seats should be a direct swap, with no programming changes needed. When I swapped in my heated seat AC control unit, the coding matched my original perfectly.

 

[Cuzoe]

I might then ask what's the difference between "programming" and coding? I don't know that programming is a term usually used for our cars so I took programming to mean coding.

One might get lucky and not need to code anything assuming the car it comes from is equipped just like yours except for heated seats. But I wouldn't count on that. I would have OBD or VCDS available, or have access to one of them to be safe

 

[Meesters]

As long as the Ali harness looks like the Kufatec one:

you should be fine. You'll have an easier job than I did. For me, I used this harness, but the black 10-pin connectors were changed in 2016 to red 17-pin connectors on US cars, and Kufatec was not aware of this change and therefore have not produced the appropriate harness. I had to remove the pins from the Kufatec connectors and re-map them to the appropriate slots on my car's 17-pin connectors. You can see the 5 pins that connect to the BCM. There is also a 6th wire one not shown, that's terminal 30 power from the fuse box to the BCM to supply power to the heated seats.

As for coding, if memory serves me you only need to change one line of coding in the BCM to activate the heated seats:

09 Central Electrics --> Seat heater level current consumption allocation --> Sitzheitzung CAN --> change from "not installed" to "Sitzheitzung bei BCM"

Hi there, hope you are still on this forum. Could you directly pull the pins out of the black 10 pin connector and put them in the red 17 pin connector? or did you need to cut the wires and install other pins to the wires to fit in the red connector. Already great thanks! Greets Chris.

 

[southpawboston]

Hi there, hope you are still on this forum. Could you directly pull the pins out of the black 10 pin connector and put them in the red 17 pin connector? or did you need to cut the wires and install other pins to the wires to fit in the red connector. Already great thanks! Greets Chris.

Yes and no.

I was able to re-map all but one pin from the 10-pin black plug kufatec plug to the 17-pin red plug. One pin did not match the socket size on the plug. For that one I had to splice in a connecting wire from the kufatec harness to the seat harness and bypass the connector altogether. If you have a nice assortment of spare pins of various sizes, you could just crimp the proper new pin for that one wire.

I made this pin map for connections between the BCM and T17 left and right plugs.

This is the pin numbering of T17.

 

[Meesters]

Yes and no.

I was able to re-map all but one pin from the 10-pin black plug kufatec plug to the 17-pin red plug. One pin did not match the socket size on the plug. For that one I had to splice in a connecting wire from the kufatec harness to the seat harness and bypass the connector altogether. If you have a nice assortment of spare pins of various sizes, you could just crimp the proper new pin for that one wire.

I made this pin map for connections between the BCM and T17 left and right plugs.

This is the pin numbering of T17.

Sorry, didn't thank you already, so thank you very much, that's great news. Today I ordered also a set with the old 10 pin connector, I hope I figure everything thing out.

Edit: Sorry, I tried to open the pin numbering of T17, I think you have received several messages for getting acces, because it's not freely accessible.

 

[southpawboston]

Sorry, didn't thank you already, so thank you very much, that's great news. Today I ordered also a set with the old 10 pin connector, I hope I figure everything thing out.

Edit: Sorry, I tried to open the pin numbering of T17, I think you have received several messages for getting acces, because it's not freely accessible.

Don't know why you still don't have access, which google tells me I granted, but here's a new link. I changed to permissions so all can see:

https://drive.google.com/file/d/15tbl_pVxW_SJGfoUe7Ivb5HYTJvLUC6G/view?usp=sharing

 

[Meesters]

Yes, it was working already, thank you very much!

 

[Meesters]

Don't know why you still don't have access, which google tells me I granted, but here's a new link. I changed to permissions so all can see:

https://drive.google.com/file/d/15tbl_pVxW_SJGfoUe7Ivb5HYTJvLUC6G/view?usp=sharing

Hello, Just wanted to let you know how I did it in the end.

I just swapped over the wires with the red connector from my current to the new seats itself, they replace the small 2 and 4 pin connectors for driver and passenger side. I added the black 10 pin connector and wiring to the car for electric adjustment and heating, as original on pre-facelift.

This way I didn't need to re-pin or splice any wire or pin at all. And another nice thing is that the connector-holder underneath the seat has place for both types of connector, so they are clipped in both, as you can see on the pictures. It gives a nice OEM look.

I found adaptation settings, but I don't know if they are original as VW would do, do you know perhaps if they are correct?

Seat heater level current consumption allocation-Sitzheizung Stufe 1 obere Schaltschwelle - 0.00
Seat heater level current consumption allocation-Sitzheizung Stufe 1 untere Schaltschwelle - 0.00
Seat heater level current consumption allocation-Sitzheizung Stufe 2 obere Schaltschwelle - 22.50
Seat heater level current consumption allocation-Sitzheizung Stufe 2 untere Schaltschwelle - 21.50
Seat heater level current consumption allocation-Sitzheizung Stufe 3 obere Schaltschwelle - 0.00c
Seat heater level current consumption allocation-Sitzheizung Stufe 3 untere Schaltschwelle - 0.00
Seat heater level current consumption allocation-Sitzheizung Stufe 4 obere Schaltschwelle - 36.00
Seat heater level current consumption allocation-Sitzheizung Stufe 4 untere Schaltschwelle - 35.00
Seat heater level current consumption allocation-Sitzheizung Stufe 5 obere Schaltschwelle - 0.00
Seat heater level current consumption allocation-Sitzheizung Stufe 5 untere Schaltschwelle - 0.00
Seat heater level current consumption allocation-Sitzheizung Stufe 6 obere Schaltschwelle - 53.00
Seat heater level current consumption allocation-Sitzheizung Stufe 6 untere Schaltschwelle - 52.00

Great thanks already!

Chris.

 

[southpawboston]

My values according to OBDeleven (second column is translated and indicates which heater cushion):

Sitzheizung Stufe 1 untere Schaltschwelle:	Seat heating level 1 lower threshold (bottom):
16.00 °C	16.00 ° C
Sitzheizung Stufe 1 obere Schaltschwelle:	Seat heating level 1 upper threshold (bottom):
18.00 °C	18.00 ° C
Sitzheizung Stufe 2 untere Schaltschwelle:	Seat heating level 2 lower threshold (back):
16.00 °C	16.00 ° C
Sitzheizung Stufe 2 obere Schaltschwelle:	Seat heating level 2 upper threshold (back):
18.00 °C	18.00 ° C
Sitzheizung Stufe 3 untere Schaltschwelle:	Seat heating level 3 lower threshold (bottom):
24.00 °C	24.00 ° C
Sitzheizung Stufe 3 obere Schaltschwelle:	Seat heating level 3 upper threshold (bottom):
26.00 °C	26.00 ° C
Sitzheizung Stufe 4 untere Schaltschwelle:	Seat heating level 4 lower threshold (back):
24.00 °C	24.00 ° C
Sitzheizung Stufe 4 obere Schaltschwelle:	Seat heating level 4 upper threshold (back):
26.00 °C	26.00 ° C
Sitzheizung Stufe 5 untere Schaltschwelle:	Seat heating level 5 lower threshold (bottom):
48.00 °C	48.00 ° C
Sitzheizung Stufe 5 obere Schaltschwelle:	Seat heating level 5 upper threshold (bottom):
49.00 °C	49.00 ° C
Sitzheizung Stufe 6 untere Schaltschwelle:	Seat heating level 6 lower threshold (back):
48.00 °C	48.00 ° C
Sitzheizung Stufe 6 obere Schaltschwelle:	Seat heating level 6 upper threshold (back):
49.00 °C	49.00 ° C

 

[Luismp]

I'm thinking of changing my most basic version seats for a Golf 7.5 R, my Golf is also a 7.5 plus the R seats are from an English car. Are they direct swaps or do I have to see if there are sensors that I have to take from mine to the ones on the R?