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Factory tyre sizes

BMW X3 tyre sizes and what a set of four costs

The BMW X3 G45 (2024 on) came from the factory on 245/50 R19, 245/45 R20 tyres; across the 2 generations listed, wheels range from 18in to 21in. A fitted set of four costs about £719–£1,382 with mid-range tyres and £795–£1,400 with premium tyres (73 Auto estimate from UK retailer prices observed on 23 September 2026, 6 factory fitments).

Check what a specific car really costs to own

Data to 2026-09-23 · Page updated 2026-09-28 · Publisher: 73 Auto

Factory fitments
6
2 generation groups, MEDIUM confidence
Cheapest set of four
£719
mid-range tyres, fitted (73 Auto estimate)
Dearest set of four
£1,400
premium tyres, fitted (73 Auto estimate)

BMW X3 G01 (2017–2024) tyre sizes

Factory tyre sizes and fitted set-of-four cost, BMW X3 G01
Wheels / trimsFrontRearMid-range setPremium set
18in225/60 R18 100W run-flatSame as front£767£795
19in245/50 R19 105W XL run-flatSame as front£1,022£976
20in M Sport (option)245/45 R20 103W XL run-flat275/40 R20 106W XL run-flat£957£1,068
21in (option)245/40 R21 100Y XL run-flat275/35 R21 103Y XL run-flat£1,382£1,400
Set of four = two front and two rear tyres at the median price for that exact size, load index and speed rating, plus fitting, balancing, valves and disposal. — means too few market offers to price it.

BMW X3 G45 (2024 on) tyre sizes

Factory tyre sizes and fitted set-of-four cost, BMW X3 G45
Wheels / trimsFrontRearMid-range setPremium set
19in245/50 R19 105W XLSame as front£761£899
20in M Sport245/45 R20 103W XL275/40 R20 106W XL£719£937
Set of four = two front and two rear tyres at the median price for that exact size, load index and speed rating, plus fitting, balancing, valves and disposal. — means too few market offers to price it.

How wheel size changes the cost of BMW X3 tyres

The cheapest BMW X3 fitment to re-tyre is 245/45 R20 103W XL (G45) at about £719 for a mid-range fitted set; the dearest is 245/40 R21 100Y XL run-flat with 275/35 R21 103Y XL run-flat rears (G01) at about £1,382 — 1.9 times as much.

That is 1 inch of rim, about £663 more per set for each extra inch.

3 of the 6 fitments are staggered (different front and rear sizes). Staggered tyres cannot be rotated between axles, so the driven axle usually wears out first and pairs are replaced separately.

4 fitments use run-flat tyres, which cost more to buy and to fit.

Choosing premium over mid-range brands moves the most expensive set from £1,382 to £1,400.

How often you pay depends on wear as well as price: car tyre cost explains how 73 Auto turns these prices into a yearly figure for a specific car.

BMW X3 tyres at the MOT

In 204,786 DVSA MOT tests of the BMW X3 from 1 January 2023 to 30 December 2024, 6.1% failed on at least one tyre item (all cars: 6.4%); adjusted for age, mileage and fuel that is 7% less often than comparable cars. See the BMW X3 MOT pass rate.

Official data: DVSA anonymised MOT tests, Open Government Licence v3.0.

Prices for BMW X3 tyre sizes

Other BMW models

Where the sizes come from

  • 73 Auto editorial compilation of published OE fitments (manufacturer brochures, placards and tyre-maker OE catalogues) — 73 Auto (medium confidence)

Limitations

Factory sizes are from 73 Auto's fitment reference; rows from the editorial compilation are medium confidence and not individually verified against a manufacturer document. A car may have been fitted with other wheels since new: check the size on the tyre itself.

Prices observed on public UK retailer listings (Camskill and Tyreleader) on 23 September 2026, aggregated by 73 Auto. Set-of-four prices are 73 Auto estimates for the exact tyre specification, not quotes; retail prices change often.

Check a specific BMW X3: tyres, MOT and running costs

Enter a BMW X3 registration to see which tyres that car is likely to have, what replacing them costs at your mileage, and its MOT history. Your first check is free and shows the vehicle summary and its headline ownership cost. The category-by-category breakdown is part of a paid check.

UK number plate or 17-character VIN

Where these figures come from

Figures labelled as 73 Auto estimates are our own analysis of these sources, set out in the methodology and data sources. To report a factual error, see corrections.