2020 Mercedes-Benz S-Class Cabrio AMG tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 5x112 on every 2020 trim.

Tires for the 2020 Mercedes-Benz S-Class Cabrio AMG

Sizes most trims come with first. Open your trim below for its exact size.

255/45R19 front + 285/40R19 rear Best-rated standard on 1 trim · optional on 1 · Europe, Japan

Check price on Amazon · 255/45R19 front Check price on Amazon · 285/40R19 rear
255/40R20 front + 285/35R20 rear Best-rated standard on 1 trim · optional on 1 · Europe, Japan

Check price on Amazon · 255/40R20 front Check price on Amazon · 285/35R20 rear
255/45R19 Best-rated optional on 2 trims · Europe, Japan

Check price on Amazon · 255/45R19

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Trims sold in 2020: 2
Generation: A217 sold in 2 market versions
Other years: 2015
2016
2017
2018
2019
2020
2021
All years (2015–2021)

2 trims sold in 2020

Sold in 2 market versions with different tire sizes. Open a trim for its tire and rim sizes, bolt pattern and tire pressure.

Mercedes-Benz S-Class Cabrio AMG A217

2015–2021 2 trims

Europe

1 trim

S-Class Cabrio AMG S 63 603 hp · 4.0L M177 V8 255/45R19 104Y / 285/40R19 107Y 5 fitments

Generation: A217 · 2015–2021
Market: Europe
Power: 603 hp
Engine: 4.0L M177 V8, Petrol
Center bore: 66.6 mm
Bolt pattern: 5x112
Thread: M14 x 1.5

Check price on Amazon · 255/45R19 Check price on Amazon · 285/40R19 Wheels 19x8.5 ET39 · 5x112 · 66.6 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
Front255/45R19 104Y	Rim 19x8.5 ET39 ~~5x112~~	35 psi
Rear285/40R19 107Y	Rim 19x9.5 ET39 ~~5x112~~	38 psi
Front255/40R20 101Y	Rim 20x8.5 ET39 ~~5x112~~	39 psi
Rear285/35R20 104Y	Rim 20x9.5 ET39 ~~5x112~~	42 psi
Front255/40R20 101V	Rim 20x8.5 ET39 ~~5x112~~	39 psi
Rear285/35R20 104V	Rim 20x9.5 ET39 ~~5x112~~	42 psi
255/45R19 104V	Rim 19x8.5 ET39 ~~5x112~~	35 psi
255/40R20 101V	Rim 20x8.5 ET39 ~~5x112~~	39 psi

How to read 104Y: 104 is the load index (up to 1,984 lb / 900 kg per tire) and Y the speed rating (up to 186 mph / 300 km/h). ET39 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres. Compare offsets in the wheel offset calculator.

Japan

1 trim

S-Class Cabrio AMG S 63 (CBA-217488) 603 hp · 4.0L M279 V8 255/40R20 101V / 285/35R20 104V 5 fitments

Generation: A217 · 2015–2021
Market: Japan
Power: 603 hp
Engine: 4.0L M279 V8, Petrol
Center bore: 66.6 mm
Bolt pattern: 5x112
Thread: M14 x 1.5

Check price on Amazon · 255/40R20 Check price on Amazon · 285/35R20 Wheels 20x8.5 ET39 · 5x112 · 66.6 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
Front255/40R20 101V	Rim 20x8.5 ET39 ~~5x112~~	39 psi
Rear285/35R20 104V	Rim 20x9.5 ET39 ~~5x112~~	42 psi
Front255/40R20 101Y	Rim 20x8.5 ET39 ~~5x112~~	39 psi
Rear285/35R20 104Y	Rim 20x9.5 ET39 ~~5x112~~	42 psi
Front255/45R19 104Y	Rim 19x8.5 ET39 ~~5x112~~	35 psi
Rear285/40R19 107Y	Rim 19x9.5 ET39 ~~5x112~~	38 psi
255/45R19 104V	Rim 19x8.5 ET39 ~~5x112~~	39 psi
255/40R20 101V	Rim 20x8.5 ET39 ~~5x112~~	39 psi

How to read 101V: 101 is the load index (up to 1,819 lb / 825 kg per tire) and V the speed rating (up to 149 mph / 240 km/h). ET39 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres.

What these columns mean

Rim size: Rim diameter × width in inches, and the factory offset (ET) in millimetres, e.g. 18x7.5 ET25.
Bolt pattern (PCD): Number of studs and the diameter of the circle they sit on. It must match exactly.
Center bore: Diameter of the hub hole. Larger aftermarket bores need hub-centric rings.
Pressure: Recommended cold inflation pressure for that axle, in psi.
Staggered: A wider tire on the rear axle than the front. Front-to-back rotation is not possible.
Thread size: Lug bolt or nut thread — needed when buying aftermarket fasteners.