Hello, all -
I took my 2003 A6 3.0 in for the standard 40,000 mile service. The next day it was taken in for an emissions test - the testing center put it on some rollers, attached sensors to the exhaust and other parts of the car, and ran it up to about 35 MPH.
The next day, after driving about 150 miles, I noticed that the turn signal only worked intermittently (usually it just blinked once and quit). Later, driving on icy roads, I noticed that the traction control wasn't working. Finally, the car failed to start - once it was jump-started it ran fine, but after being parked for 5 hours it required a second jump start.
Any thoughts on what the problem could be?