Car is a 01 a4 quattro w/ 2.8 & auto tip. Car is normally maintained and well kept. Issue is while im driving (timing of issues varies when it happens) the cars warning system starts beeping and the red brake light flashes and stays on until car gets shut off. All the pads are good and the rotors arent tore up. Brake reservoir is full. Have noticed that the left front,right front and left rear rotors are silver(as from solid pad contact) but the rear right has very little silver visible and looks kinda dark(looks like lack of pad contact). But the car has always been like that for the whole year of owning it and have never had a hiccup with the braking system.

Even now when it beeps/flashes....the car still brakes perfectly fine. Id like to think its nothing but i dont want to blow off something possibly disastorious. Dont want my brakes to go out when i need them. Any ideas on this?what it could be? in extreme dire need of help....please. Thanx guys

 

Makes me think ABS module. I'd be concerned that one of the calipers appears to be frozen too. How mechanically inclined are you?

 

my vote is abs module

 

Im fairly mechanically inclined. Not a dumb **** about most stuff but am far from being a wiz about others. I figured as much that the caliper was frozen as ive been hitting the junkyard every weekend in search of another.

Ive done a bit of research on what it could be and the 2 things ive seen is the ABS module or the fluid level sensor was sticking or some ****. But the sensor thing seemed to only be a B6 issue. But figuring,mechanically wise...how much of a difference is there betweena B5 and a B6 fluid level sensor?

So now im on to replacing the module. Junkyard part or jus chalk up $500 and get a new one? Thanx a ton fellas. Yall rock

 

None of the above. Jankyard might work. Or pull it out and send it to someone like this:

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