BMW 4 Series
Find Tyres for 2020-present BMW 4 Series (G23)
UK-market tyre sizes for the 2020-present BMW 4 Series, with chassis-code matching and trim notes.
About this generation
BMW fits run-flat tyres on many 4 Series models, paired with tyre pressure monitoring and no spare wheel. If your car was supplied with run-flats, replacements should typically also be run-flats.
This generation of the 4 Series runs on 19-inch or larger wheels in some trims, which means short-sidewall tyres that handle precisely but are less forgiving on rough UK roads.
Chassis code: G23. Use the chassis code to confirm you have the right generation when ordering tyres.
Common factory tyre sizes
UK-market factory fitments for the 2020-present BMW 4 Series typically include:
Wet grip is the most relevant EU label rating for UK driving. On the 4 Series, prioritise wet grip A or B for shorter braking in rain.
BMW works with tyre makers to develop OEM-marked versions for the 4 Series, tuned for the car's suspension calibration. Star, MO, AO or J markings indicate manufacturer-approved tyres.
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Tyre sizes vary by trim, year, wheel size and manufacturer specification. Confirm the size on your tyre sidewall before fitting.
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Other BMW 4 Series generations
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Frequently asked questions
Quick answers about UK tyre fitment, MOT rules and seasonal options.
How long should tyres last on the 2020-present BMW 4 Series?
Typical UK tread life on the BMW 4 Series is around 20,000-40,000 miles depending on tyre brand, road conditions and driving style. Heavier trims tend to wear faster.
What tyre size does the 2020-present BMW 4 Series use?
Common UK factory fitments for the 2020-present BMW 4 Series include 225/45 R18, 225/40 R19, 255/35 R19, 255/30 R20. The exact size depends on the wheel and trim ordered — always confirm on your tyre sidewall before fitting.
What do star/OEM markings mean on BMW 4 Series tyres?
BMW approves specific tyres for many of its models, marked with a star (BMW), MO (Mercedes), AO (Audi), J (Jaguar) or similar. OEM-marked tyres are tuned for that car's suspension and don't always come from the major brand-name fitter as a stock item — they may need to be ordered.
Is the BMW 4 Series still on sale in the UK?
As of the 2020-present window, the BMW 4 Series is currently on sale in the UK. Tyre fitments listed here reflect UK-market specifications.
What's different about the 2020-present 4 Series compared with other generations?
This is the 2020-present generation of the BMW 4 Series. Earlier and later generations use different platforms, wheel sizes and tyre fitments, so always match your specific year to the correct generation page.
Tyre Finder UK provides general tyre guidance only. We do not guarantee tyre fitment, local stock, prices or fitting availability. Always confirm your tyre size, load rating, speed rating and vehicle requirements using your current tyre sidewall, vehicle handbook, manufacturer guidance or a qualified tyre fitter before fitting.