Originally Posted by
AudiPilot
I had some intermittent ABS/traction lights earlier this year, and the codes called out the yaw rate sensor, which is under the middle of the back seat. Didn’t happen with near the consistency/predictability of yours, but just my experience. I never replaced the sensor, and it stopped occurring. It can probably be many things though, wheel speed sensors, ABS module, etc. I think in most cases both lights will come on together, because ABS is part of the traction control system. VCDS will tell all!
Also, try Google searching “site:rs6.com abs traction control” and you’ll get links to lots of prior threads on the topic.