Probably the speed sensor has crapped out. Or the module has.
Faulty ABS unit .
Where is the answer
Warning light symbols with explanations for 2003 Audi a4
The brake light in the Audi A4 display means there is an issue with the brake system. The most common cause of this warning light is low brake fluid.
underneath the ABS pump.
what does INSP mean? this came out in my 1998 Audi A4 1.8T.
As of 2014, the cost for a Audi A4 brake light is between 12 and 15 dollars. This light can be purchased at stores like Auto Zone.
Traction control light.
The locking mechanism.
Emissions check
What do the flashing words 'service inspection' mean on a 1998 Audi A4 1.9 tdi
*Avant* means Wagon.