04' a6 2.7t s-line 80k miles. The brake light flashes 4 times and beeps 3 times everytime I make a right turn when its very cold out. Never a left turn and not once the car has been in motion for a while or it warms up. It was 17 outside this am and it was acting up. Has anyone else ever had this or heard of this? Nothing else wrong, car runs like new. Have not checked for codes.

 

You ever figure out what the problem or cause was, Just turned winter and now it happens to me everytime i take a right turn, and yes it seems that once the car is warmed up it stops. Also sometimes my battery light will flash on, never stays on or beeps will just flash for a second then never come back... Any ideas

 

Have you checked your brake fluid level?