You did not say what year it is. In general you can get an OBD reader that plugs into the port on the car and use that to reset the codes by erasing them, OR you can pull the fuse on the ECM or you can disconnect the battery. If the light does not go out when any of these are done then the issue that made the light come on is not corrected.
It has to be done with a scan tool. Resetting the light without correcting the problem will be of no use as the light will come back on.
There are a multitude of reasons why the check engine light could come on - you need to have an OBDII scanner hooked up and pull fault codes to determine the cause. As for resetting it, fixing the problem which causes it would be the best way to go.
You will need to take the 2006 Audi A6 to a mechanic to have the service light properly reset. In some cases, a person can undo the battery to reset the light.
Indicator lights on an Audi can be reset by a mechanic. The cars manual will also give instructions on how to reset this light as well.
by going to an AutoZone store and having them reset it with their handheld computer system that plugs directly into the information port under the dashboard on the drivers side
with a dignostic tool
Click the link.
maybe the plug under your seat has been unplugged, you will have to check the connections and then get the computer system reset using vagcom by an Audi dealership to see if that has resolved the problem
I Think its a main dealer job only as they use a guided function with the Audi VAS computer to reset the service display
After repairing the cause of the code, you clear it with a scan tool.
A blinking check engine light means an engine cylinder misfire has been detectedNot only a misfire, but a condition that could cause a catastrophic failure of the catalytic converter. The injector on the effected cylinder(s) will be shut off by the PCM
The engine light will only be on because there is a problem, take it to your nearest Audi Speacialist Cars where they can plug it into a machine and check what the problem is. it could be a case of just a failed sensor somewhere in the engine but more than likely will be a problem, not something you want to ignore!