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Audi A4 2023 tyre size

The 2023 Audi A4 (B9, 2016–present) was built with 3 factory tyre sizes, depending on the wheels specified when it was new.

Factory sizes

  • 205/60 R16

    All four corners

  • 225/50 R17

    All four corners

  • 245/40 R18

    All four corners

Check your car before you buy

These are the sizes the manufacturer fitted to this model. A specific car can differ — optional alloys, a previous owner's upgrade, run-flats or a space-saver spare all change the answer. The two places that never lie are the sidewall of a tyre already on the car, and the placard in the driver's door shut. Tyres are a safety item, so confirm against one of those before ordering.

What the numbers mean

205/60 R16

Width

205 mm

Tread width across the tyre

Profile

60%

Sidewall is 60% of the width — about 123 mm

Rim

16 in

Wheel diameter the tyre fits

The R means radial construction, which every modern car tyre uses. A sidewall also carries a load index and speed rating after the size (for example 91V). Those vary by engine and trim within one size, so match them to the tyre already fitted rather than guessing.

Check tyre advisories on your car

Every MOT test records tyre condition. Run a free check on any registration to see whether tyres have been flagged as worn, damaged or below the tread limit at previous tests — useful before buying, and a good prompt for when yours are due.

Run a free MOT check

Other Audi A4 years

Frequently asked questions

What tyre size does a 2023 Audi A4 need?
The 2023 Audi A4 left the factory on 205/60 R16, 225/50 R17, 245/40 R18. Which of those your car uses depends on the wheels it was built with or has been fitted with since, so confirm the size on the sidewall of a tyre already on the car, or on the placard inside the driver's door shut, before you order.
Where do I find the tyre size on my car?
It is moulded into the sidewall of every tyre, reading like 205/55 R16 91V. Most cars also carry a placard in the driver's door shut, inside the fuel filler flap or in the handbook, listing the sizes and pressures the manufacturer specifies.
Can I fit a different tyre size?
Only within limits. The size affects speedometer accuracy, handling, and whether the tyre clears the bodywork and suspension, and a size below the load index the vehicle needs is dangerous and can invalidate insurance. Stick to a size the manufacturer lists for your car unless a tyre specialist has confirmed an alternative is suitable.
Do all four tyres have to be the same size?
On most cars, yes. Some performance and rear-wheel-drive models use a staggered fitment, with wider tyres on the rear than the front — those are listed separately above where they apply. Tyres on the same axle should always match in size, construction and tread pattern.

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