Sia Bani

So I reset my #2 trip computer at the last fill and this time again, it was off by more than 1mpg.

It read 11.5 at this fill, and I really got 12.7

184 miles on 14.5 gallons.

Oh this was all Berkeley hills/street.

Anyone noticing anything similar here?

TXurS6

On the A6 they could adjust the computer calculation in 5% increments.

Namib

On my 2004 S4, I check the fuel consumption every time I fill up. The trip computer is consistently 7% pessimistic on consumption. This 7% does not account for odometer error which I estimate to be about 1.5% pessimistic.

I've only done 4,000 miles and am planning to have the dealer check it out at the 5,000 service. I'm hoping they can adjust it as you suggest.

Namib

Trip computer was 1 mpg pessimistic at indicated 15 mpg before dealer reset, and 2 mpg pessimistic after! Will have to go back for another try.

Namib

Here is follow-up after a couple of years, with reading 2 mpg pessimistic after 5,000 mile service reset! Following second try by dealer at 15,000 mile service, trip computer mpg reading was now 3 mpg pessimistic at 15 mpg true consumption, i.e. 1 mpg more inaccurate. After recent third try at 17,300 miles, computer is still 3 mpg pessimistic at 15 mpg. Dealer claimed to have had instructions on resetting the computer from Audi headquarters, but readout didn't change from 20% off.

Anyone out there know how to reset the computer reading? The true mileage has been determined from every tank fill-up since new, and the odometer has been calibrated and is reasonably accurate. Help!