I'm trying to fix all the problems one by one on my 2000 A4 =)

I have this yellow brake light on my center lcd when I step on the brake for the first time. I'm not sure what causes this. Could it be because I have an aftermarket brake switch or does that even matter?

What should I be checking for???

 

Does it stay on the whole time or does it just come on once

 

I turn on the car, lcd says okay. I step on my brake and the lcd says "brake light" with one beep. The warning stays on through my entire trip until I turn off the car. And the cycle repeats. Its rather odd. I would imagine its the brake switch, but I replaced it.

Might be a dumb question, but could the brake switch not being OEM trigger that?

 

check all the bulbs in your tail light housings. what to you mean by "brake switch" ?

 

you most likely have a single filament bulb in your brake light.... its suppose to have a dual filament brake light bulb.

 

^^That or its burnt out. Unless you mean the symbol that looks like (O), then that means your front pads are worn to the wear indicators.

 

The bulbs in the taillight housing are all double filament. The weird thing is that there are two missing bulbs on the top, so there is one bulb that is for the brake light (should two bulbs be powering it). When I screw in a bulb in the top, it does nothing on both taillights.

All the taillights do work though.

@McGovs: The lcd displays the text "brake light". Brake pads should be good as I changed them a month ago.

@CCA4: The switch that is under the brake pedal to signal the brake light to go on. The missing bulbs seems interesting though. Do I need new taillights?

 

So when the brake is pressed all the lights that should light up do? Or no?

 

This happens to me to, but I just ignore it. I assume it has to do with the oem spoiler that was installed by the previous owner that has a brake light on it. I could be wrong...

 

Yeah, the taillight works perfectly fine which confuses me.

Its that annoying beep that sounds when I step on the brake for the first time that gets me.