ensure that the indicator stalk is set in the middle when you turn off the ignition.
They are two seperate circuits. Check the fuses and the bulbs.
Just check your brake lite switch which is located at the brake pedal the switch might be broken that is why your brake lite is always on.
Top is not locked down, or open.
It's an yellow warning indicator lamp. It lights when brake pads are weared. Now it's time to replace the used brake pads!
To change the brake light switch on an Audi A3, first disconnect the vehicle's battery to ensure safety. Locate the brake light switch, which is typically positioned above the brake pedal. Remove the old switch by disconnecting the wiring harness and unscrewing it from its mount, then install the new switch by reversing the process. Finally, reconnect the battery and test the brake lights to ensure they function correctly.
no.
DOT 4. Is the recommended brake fluid by Audi.
warning lights
first id check the fuse if that's ok there should be a switch at the top of the brake pedal so when u press the brake the switch opens and brake lights work this is adjustable and may need adjusting failing that it could need replacing.Also be sure all of your brake light bulbs are not burned out. This can happen with any car (and happens fairly often).
Replace the brake pads.
could be either or, simply replace one bulb to see if that fixes it if not check the fuse
To change the brake light switch on a 2006 Audi A6, start by disconnecting the battery to ensure safety. Locate the brake light switch, which is typically positioned above the brake pedal. Remove the electrical connector from the switch, then unscrew and remove the old switch. Install the new switch by reversing the process, ensuring it is properly adjusted and reconnect the battery to test the lights.