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Factory tyre sizes

Mercedes-Benz S-Class tyre sizes and what a set of four costs

The Mercedes-Benz S-Class W223 (2021 on) came from the factory on 255/45 R19, 255/40 R20, 255/35 R21 tyres; across the 3 generations listed, wheels range from 18in to 21in. A fitted set of four costs about £626–£847 with mid-range tyres and £816–£1,125 with premium tyres (73 Auto estimate from UK retailer prices observed on 23 September 2026, 7 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
7
3 generation groups, MEDIUM confidence
Cheapest set of four
£626
mid-range tyres, fitted (73 Auto estimate)
Dearest set of four
£1,125
premium tyres, fitted (73 Auto estimate)

Mercedes-Benz S-Class W221 (2005–2013) tyre sizes

Factory tyre sizes and fitted set-of-four cost, Mercedes-Benz S-Class W221
Wheels / trimsFrontRearMid-range setPremium set
18in255/45 R18 99YSame as front£626£874
19in (option)255/40 R19 100Y XL275/40 R19 101Y£657£816
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.

Mercedes-Benz S-Class W222 (2013–2020) tyre sizes

Factory tyre sizes and fitted set-of-four cost, Mercedes-Benz S-Class W222
Wheels / trimsFrontRearMid-range setPremium set
19in245/45 R19 102Y XL275/40 R19 105Y XL£660£849
20in (option)245/40 R20 99Y XL275/35 R20 102Y XL£726£957
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.

Mercedes-Benz S-Class W223 (2021 on) tyre sizes

Factory tyre sizes and fitted set-of-four cost, Mercedes-Benz S-Class W223
Wheels / trimsFrontRearMid-range setPremium set
19in255/45 R19 104Y XLSame as front£744£912
20in255/40 R20 101Y XL285/35 R20 104Y XL£755£1,019
21in (option)255/35 R21 98Y XL285/30 R21 100Y XL£847£1,125
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 Mercedes-Benz S-Class tyres

The cheapest Mercedes-Benz S-Class fitment to re-tyre is 255/45 R18 99Y (W221) at about £626 for a mid-range fitted set; the dearest is 255/35 R21 98Y XL with 285/30 R21 100Y XL rears (W223) at about £847 — 1.4 times as much.

That is 3 inches of rim, about £74 more per set for each extra inch.

5 of the 7 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.

Choosing premium over mid-range brands moves the most expensive set from £847 to £1,125.

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.

Mercedes-Benz S-Class tyres at the MOT

In 55,571 DVSA MOT tests of the Mercedes-Benz S-Class from 1 January 2023 to 30 December 2024, 5.3% failed on at least one tyre item (all cars: 6.4%); adjusted for age, mileage and fuel that is 18% less often than comparable cars. See the Mercedes-Benz S-Class MOT pass rate.

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

Prices for Mercedes-Benz S-Class tyre sizes

Other Mercedes-Benz 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 Mercedes-Benz S-Class: tyres, MOT and running costs

Enter a Mercedes-Benz S-Class 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.