The most likely reason however is that a component is malfunctioning or is in need of additional fluid or a new filter.
Center brake light warning audi a4.
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.
Stop the vehicle and check the brake fluid level.
How do you access the centre brake light on a4 cab.
The message audi pre sense and a warning tone will warn you about danger.
Contact your audi dealer for assistance.
You ll feel a loss of pressure that manifests itself in the form of a mushy brake pedal.
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.
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.
Stop vehicle and check brake fluid level.
Central indicator light check the message in the instrument cluster for additional information.
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.
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.
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.
Audi a4 brake warning light causes.
This article applies to the audi a3 a4 b7 b8 a6 c5 c6 q5 q7.
The center brake light sometimes referred to as the third brake light or stoplight on your 2005 audi a4 lights up when you hit the brake pedal and helps prevent you from being rear ended by the cars behind you.
Either the brakes need bled or there is a leak.
There are a number of reasons why a warning light might appear on the dashboard of your audi.
Click a link to learn more about each one.