How can I reset a 2009 Audi A3 Service interval 'wrench'?

We have an Audi A3, 72k miles. It had a battery failure and we have changed the battery, reset the error codes and driven the car to complete its enviro / emissions cycle. all monitors are now ready but the 'wrench' service due light is on. Oil change to 10k miles has been reset but the service due is not reset. any ideas ? we do a generic type reset tool / reader that is VAG compatible.How can I reset a 2009 Audi A3 Service interval 'wrench'?VAGCOM. Find a retailer/shop that uses it and they can reset it for you...however, if you don't fix whatever it is that's making it display the wrench, it will just come back on again in a few thousand miles...my '07 Jetta has had the wrench displayed for the last 25,000 miles lol.