A6 C5 allroad ESP button not working

[morepower]

Hi my esp button does not seem to be working or there is a possible fault in the system. The only lights/notifications on the dash are headlight adjustment fault light and recently a low brake pad/disc indicator but the ESP never seemed to turn off before this either.
Could this just be a faulty ESP button or something else?
Any ideas?
thanks

 

[gashnjir]

I once tried to change the air filter and replace it with a sport type for that turbosound. When I did this, the ESP light popped up. When i reinstalled the OEM filter and connected it up, it turned off again.

The tip? Check the air flow. There are two, one for intake and one for warm air i think. Its a small rubber hose connected to the intake. If this doesnt work, your ABS sensors may be defect. If one is defect then not a single one will work as they are linked up, im told.

 

[morepower]

Hmm something I never thought of