Tyre wear on Audi A4 - Aretas
I calculate my 2002 2.0 front wheel drive A4 will need replacement front tyres around 25 000 miles. Nothing unusual in that. However, I checked the tread depth on the rears they look like they will need replacing at the same time. All other 2 wheel drive cars I have had gave around twice the mileage on the un-driven wheels compared to the driven ones.

Is the rear-wheel tyre wear unusual or is it typical for an A4?

Tyre wear on Audi A4 - Dude - {P}
Are you sure your garage has not been rotating the tyres when the car has been in for it`s rouinte sevicing??
Tyre wear on Audi A4 - Aretas
Car hasn't had any servicing done. Only just reached 10K. Above are my forecasts based on wear to date