Use the registration search to match tyres to your exact Audi A4 variant, or check the tyre sidewall for the size (for example 225/50 R17). Sizes can differ between trims such as SE, Sport and S line, and between wheel options, so confirm the load index and speed rating too.

For Quattro models, keeping the same tyre size and similar tread depth across all four wheels is strongly recommended to help protect the drivetrain and maintain consistent handling. If you are replacing only two tyres, fit them as a matching pair on the same axle and avoid big differences in wear.

Some Audi A4s are supplied with run-flat tyres, but switching may be possible depending on your wheels and setup. Consider what you will use for puncture support (space saver, spare, or mobility kit) and aim for tyres that meet the original size and ratings specified for your car.

The UK legal minimum tread depth is 1.6mm across the central three-quarters of the tyre, but many drivers replace at around 3mm for stronger wet-weather performance. If you notice uneven wear, vibration or pulling, it is worth checking alignment and tyre pressures as well.

After choosing your tyres, select a nearby UK fitting garage and pick an appointment time during checkout. The tyres are sent to the fitter for your booking, and you simply arrive for installation. Bring your locking wheel nut key if your Audi A4 has one, and ask the garage to check TPMS and pressures after fitting.