Audi A3 » Correct Tyre Pressure
Make sure to check tire pressure when tires are “”cold”” and have not been driven for at least 3 hours. Remember that the front and rear tire pressures may differ. The tyre pressure warning light will illuminate on the Audi A3 / S3 dashboard to inform the driver that one or more tyres is under-inflated, usually by 25% or more....