Brake warning light

[boca rat]

I've started getting this so dropped RS6 at local indy, but they say there diagnostic tool not identifying which corner(s) and all 4 corners have solid meat on the pads.

This IS pads right? Is this a bad sensor perhaps?

Thx!

[nubcake]

If it's a big red (!) - can be fluid level.

[boca rat]

Thx Alex. No it's the one with the circle. BTW You tuned this car and it was one the dyno yesterday but apparently blew off a charge pipe. Haven't heard back yet from Terry about it