tracey-A4

Hi everyone New to the site and owning an Audi !! Picked it up at the weekend and it has the amber triangle in a circle light on the dash, Google says its something to do with traction control, the car is also sluggish could all this be connected? I know it will need a diagnostic test but just trying to get some idea of what it may be beforehand and whats may be needed to fix! someone has mentioned the abs pump? any info gratefully receieved!