Either the brakes need bled or there is a leak.
Center brake light warning audi a4.
Stop vehicle and check brake fluid level.
Stop the vehicle and check the brake fluid level.
Replacing the center brake light in a 05 a4 cab 1 8t originally posted by aarononymous look for a screw hidded up in the handle on pass side pop cover off neon dead kid in the trunk handle t 25 screw behind it iirc they seem to break off lately red lock tite ftl 2 5 or 6mm bolts behind the folding triangle holder pop the cover off.
Unscrew this and then take out the warning triangle and unscrew the allen head bolts that hold the plastic carrier in place.
The message audi pre sense and a warning tone will warn you about danger.
There are a number of reasons why a warning light might appear on the dashboard of your audi.
Central indicator light check the message in the instrument cluster for additional information.
They are roughly ordered by importance which tends to be by color red amber yellow orange green blue gray but there are nearly 80 of them so be patient.
How do you access the centre brake light on a4 cab.
Audi a4 brake warning light causes.
Contact your audi dealer for assistance.
See how to change the center brake light cbl on your audi a4 in the video above.
If the brake light is only coming on when you push the brakes that s a definite indication that the pressure in the brake system is too low.
The brake warning light indicates that your a4 has detected that one of its major brake components has failed typically detected through a loss of pressure.
You ll feel a loss of pressure that manifests itself in the form of a mushy brake pedal.
Audi a4 anti lock brakes abs test fault dashboard warning light anti lock brakes light the anti lock brakes abs light illuminates for a few seconds with the ignition being switched on and extinguishes once it has run through the automatic test.
Inside the boot lining look for the plastic inner handle and you will see a felt cover cross head posidriv screw hard to see if you don t know it is there.
The most likely reason however is that a component is malfunctioning or is in need of additional fluid or a new filter.
This article applies to the audi a3 a4 b7 b8 a6 c5 c6 q5 q7.