First of all, thank you in advance for any help that you may be able to provide.
I have a 2006 Cayenne S. I am the second owner and have owned this car for about 10 years. It has always been serviced at the recommended intervals. Approx 142k miles.
The 4 wheel drive fault message keeps coming on. I took it in and was told (local mechanic) that the transfer case motor was bad. I also had one one of the wheels locking up and found out it was the front passenger side wheel speed sensor (which I had replaced).
What has already been done:
* I have a brand new battery. I only have one in