[muffin86]

Joining the club with heated steering wheel and paddle shifters Mine is a VR6 Sport, so it didn't have heat.
Needed 2 parts and 3 connectors as mentioned previously in threads:

1. 4H0953568H (clock spring with heater)
2. 7P6419091T (steering wheel with tiptronic, heat, lane assist motor) Black/gray stitching
3.a N90684405/N90684505 (connector for Clock Spring for Heat) - this is if you have loose wire and crimp yourself
3.b 000979133E/000979225E - VW Repair Wire part #
4.a N90732703 (Fuse Box connector to place into the fuse box from behind) - this is if you have loose wire and crimp yourself
4.b 000979227E - VW Repair Wire part # for fuse box

Initially had issues with no heat on steering wheel, but there was an answer to that in a post by @NSTouaregTDI. Just compiling all the VCDS actions here for future references.

VCDS Things to do:
0. Car will throw lots of errors because of the new clock spring.
1. Recalibrate new Clock Spring (Reference: Rosstech Wiki)
Steering Angle Sensor (G85) Calibration
[Select]
[16 - Steering Wheel]

Turn steering wheel at least 30 ° left or right and back straight ahead (Tolerance: ±0.5 °).

[Security Access - 16]
Enter 40168
[Do It!]

[Basic Settings - 04]
Group 001
[Go!]
Activate the Basic Setting.
[ON/OFF/Next]
After a successful basic setting, field 3 should say "OK".
[Done, Go Back]

[Meas. Blocks - 08]
Group 033 Field 3 (Steering Angle Sensor -G85-)
Specification: 0.0 °
Tolerance (when straight): ±0.5 °
[Done, Go Back]

2. Code new Steering Wheel functionalities.
Code that worked for me: 000C35 (Paddle Shifter + Heat, no lane assist)
(Like @NSTouaregTDI mentioned, VCDS will do 000435 if you use the long coding helper.)

3. Code [08-Auto-HVAC] module - to enable Heated Steering wheel from RNS850
[Select]
[08-Auto-HVAC]
[Coding - 07]
[Long Coding Helper]
Go to Byte 1
Check on Bit 7 - (1 -Steering Wheel Heater installed)

4. Restart RNS850 and cycle ignition
Press [Home] + [Climate] + [Volume button] +[Nav] + [Traffic]
Radio should turn off and restart

5. Verify and Change Power to Steering Wheel for heat
[Select]
[16-Steering wheel]
[Adaptation]
Go to Channel 10

On the RNS850 go to [Climate], you should now see the [Steering Wheel Heat] button. If you tap it, VCDS should show you a current draw (around 6-8 A). That means heating is working. Tap the button again and it should go back to 0.

You can now optionally change the stored temperature. Stored Value can range between 28 to 34 (not sure what the upper limit is). Factory default should be 28. My clock spring was coded to 34, came out of an Audi S8.

6. Do an Auto-scan and clear fault codes as needed.

 

[muffin86]

If you keep your original clock spring you should be fine using OBD11, since it has long coding. If you change it with a clock spring that supports heat, you will need to do the adaptation/calibration process, not sure if OBD11 supports that.

Would always advise for VCDS

You should be ok having extra functions and don’t have them activated or functioning.

 

[muffin86]

The wheel should heat up regardless. In the HVAC screen, you clicked on the button to turn on the heat right?

One thing you can double check on is step 5 with VCDS:

5. Verify and Change Power to Steering Wheel for heat
[Select]
[16-Steering wheel]
[Adaptation]
Go to Channel 10

On the RNS850 go to [Climate], you should now see the [Steering Wheel Heat] button. If you tap it, VCDS should show you a current draw (around 6-8 A). That means heating is working. Tap the button again and it should go back to 0.

 

[muffin86]

By the way, I did run into your issue as well - that's how I found out about the Verification step. When I did this, there was no power draw, which could only mean 2 things.
1. There's no power being supplied because there's no ground or power lead to the module.
2. The coding of the steering wheel is incorrect and the control modules will not supply power.

In my case it was #2 - the coding I put in was incorrect. Hence the call out about Long Coding helper vs manual input

 

[muffin86]

I used 000C35

 

[muffin86]

[Security Access - 16]
Enter 40168

Change Power to Steering Wheel for heat
[Select]
[16-Steering wheel]
[Adaptation]
Go to Channel 10

You can now optionally change the stored temperature. Stored Value can range between 28 to 34 (not sure what the upper limit is). Factory default should be 28. My clock spring was coded to 34, came out of an Audi S8.

 

[muffin86]

Did you calibrate your new clock spring (or what you call slip ring)? The Code is thrown because the new G85 clock spring needs to be calibrated.

Check my post or look at the Rosstech reference. T3 Steering wheel paddle shifters

1. Recalibrate new Clock Spring (Reference: Rosstech Wiki)
Steering Angle Sensor (G85) Calibration

 

[muffin86]

I don't think the Passat wheel is compatible - at least just looking at the part numbers. The Passat ones seem to start with 7N0, while the Touareg ones start with 7P6.