On the Audi A3 the attachment type on the wiper arm decides fitment far more than the length: a blade of the right length with the wrong end will not clip on. The driver blade is also longer than the passenger blade, typically by 2 to 4 inches, so buy the two front blades by side rather than as identical blades.
Read the full Audi A3 wiper blades guide →The Audi Q3 carries a rear wiper on its tailgate, and the rear blade is much shorter than the fronts and easy to forget when ordering. Up front the driver blade is longer than the passenger blade, so check both lengths and the arm's attachment type, and consider a winter-boot design for UK frost.
Read the full Audi Q3 wiper blades guide →Three products we would look at first in this category. Fit for your Audi still comes first: check the compatibility list on the listing against your exact model and year, and read the model guide above.
Front pair of flat blades; match the two lengths to your car before ordering.
Bosch Aerotwin A864S Flat Blade Set (650/450 mm): see the price on Amazon →Conventional framed blades for cars with hook-type arms.
Bosch Twin 613 Blade Set (600/350 mm): see the price on Amazon →Another common flat-blade size pair.
Bosch Aerotwin A182S Flat Blade Set (600/450 mm): see the price on Amazon →Affiliate links: as an Amazon Associate we earn from qualifying purchases. Prices are set by Amazon.
Each vehicle hub links to every accessory category for that model.
The generation, body style and boot figures above draw from these public references. See how we write these guides for the wider methodology.