Hello,

Some time ago, ESP and ABS lights started coming on randomly and sometimes at around 75mph. I was ignoring it, but I need to fix it now.

The other day i had to disconnect the battery, and when I connected it back the ABS light doesn't come on, but the ESP and the power steering lights are on now.

All lights mean some kind of malfunction.

Is this something I need to be worried about or is it just a computer glitch and needs resetting? If so, what is the best diagnostic tool I can get on ebay to fiddle with A3 8P 2006?

Thanks in advance!