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Dealers will not or can not code in anything that was not on the original build sheet... pathetic. They will not come out and tell you that either. I've spent hours sitting in the waiting area for them to come out and say $hit like "our system is down" or simply do everything BUT code in your new feature. Just because we have to wait for someone who can afford a P-car new to wear it out a bit before WE can afford it, is no reason to limit our fun and enjoyment of a still useful German fossil...
It can be solution too. Or install new spring in another car with heating, make coding and enter enabling codes. Then reinstall original spring back, readapt steering angle sensor...
But in some cases, after coding or other piwis manipulation all features, like multifunction, cruise and heating can stop working and you will need reactivate them. With codes or with another car.
rehashing this thread. I just picked up a 13 GTS with the sport design steering wheel no heat. Swapped a multi function wheel with heat from a 2014 donor car and now need the codes to activate. I have access to a PWIS. Am I correct that I need activation codes or is there a process to follow?
After the GTS/Turbo DRL adaptor project, I started on a new one where I wanted to try to figure out how to retrofit heated steering into my Cayenne 958. There were some mixed results based on the posts, where some people were able to put in the clockspring from a heated steering module and have the dealer enter an enabling code. Others reported that the service techs weren't able to get the enabling codes from Porsche for VINs that didn't have it from factory. I ran into the same issue, which was we couldn't find the enabling code.
Anyway, I ultimately got it to work. I basically was able to find some steering modules/clock springs from Cayennes that had heated steering from the factory. These were from people that were swapping out their entire units for the sports wheel, so these were spares. It turns out the coding for heat is in the steering module/clock spring. I was able to just take a pre programmed unit and get it to work. The wiring from the fuse up to the connector on the steering module is the same for a heated and non-heated wheel. What's missing is the connector from the steering to the clock spring. I basically just got a heated wheel and replaced my non-heated wheel. The heated steering graphic and the button worked without any additional coding. It did throw some codes. In particular, you have to recalibrate the steering angle sensor, which is really easy to do with the PIWIS. After I did that, everything was fine. Just to be safe I wrote the calibration data that I had saved in PIWIS form the original steering module into the new one. The key was that heated steering was already enabled since the steering module came out of Cayenne that had it from factory. I couldn't get this to work with a brand new steering module with nothing coded into it.
I still have an extra pre programmed steering modules/clockspring that I've posted on the classifieds forum.
What steering wheel was original to the car? Sport design or multi function w/o heat.
I have a 13 GTS with sport design, trying to swap to multifunction with heat. Trying to gauge if I would have the same result as you.
It can be solution too. Or install new spring in another car with heating, make coding and enter enabling codes. Then reinstall original spring back, readapt steering angle sensor...
But in some cases, after coding or other piwis manipulation all features, like multifunction, cruise and heating can stop working and you will need reactivate them. With codes or with another car.
@G_A can you PM me. It sounds like you are the expert on this and hoping you can help me swap from sport design to MF wheel and program
