tirewheelguide

2018 Mercedes-Benz S-Class Cabrio AMG tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 5x112 on every 2018 trim.

Tires for the 2018 Mercedes-Benz S-Class Cabrio AMG

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

  1. 255/45R19 front + 285/40R19 rear Best-rated standard on 2 trims · optional on 1 · Europe, Japan
    Check price on Amazon · 255/45R19 front Check price on Amazon · 285/40R19 rear
  2. 255/40R20 front + 285/35R20 rear Best-rated standard on 1 trim · optional on 2 · Europe, Japan
    Check price on Amazon · 255/40R20 front Check price on Amazon · 285/35R20 rear
  3. 255/45R19 Best-rated optional on 3 trims · Europe, Japan
    Check price on Amazon · 255/45R19

Also listed: 255/40R20

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Trims sold in 2018
3
Generation
A217 sold in 2 market versions

3 trims sold in 2018

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 3 trims

Europe

2 trims
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 sizeRim size and bolt patternPressure, psi
Front255/45R19 104YRim 19x8.5 ET39 5x11235 psi
Rear285/40R19 107YRim 19x9.5 ET39 5x11238 psi
Front255/40R20 101YRim 20x8.5 ET39 5x11239 psi
Rear285/35R20 104YRim 20x9.5 ET39 5x11242 psi
Front255/40R20 101VRim 20x8.5 ET39 5x11239 psi
Rear285/35R20 104VRim 20x9.5 ET39 5x11242 psi
255/45R19 104VRim 19x8.5 ET39 5x11235 psi
255/40R20 101VRim 20x8.5 ET39 5x11239 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.

S-Class Cabrio AMG S 65 621 hp · 6.0L M279 V12 255/45R19 104Y / 285/40R19 107Y 5 fitments
Generation
A217 · 2015–2021
Market
Europe
Power
621 hp
Engine
6.0L M279 V12, 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 sizeRim size and bolt patternPressure, psi
Front255/45R19 104YRim 19x8.5 ET39 5x11235 psi
Rear285/40R19 107YRim 19x9.5 ET39 5x11238 psi
Front255/40R20 101VRim 20x8.5 ET39 5x11239 psi
Rear285/35R20 104VRim 20x9.5 ET39 5x11242 psi
Front255/40R20 101YRim 20x8.5 ET39 5x11239 psi
Rear285/35R20 104YRim 20x9.5 ET39 5x11242 psi
255/45R19 104VRim 19x8.5 ET39 5x11235 psi
255/40R20 101VRim 20x8.5 ET39 5x11239 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.

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 sizeRim size and bolt patternPressure, psi
Front255/40R20 101VRim 20x8.5 ET39 5x11239 psi
Rear285/35R20 104VRim 20x9.5 ET39 5x11242 psi
Front255/40R20 101YRim 20x8.5 ET39 5x11239 psi
Rear285/35R20 104YRim 20x9.5 ET39 5x11242 psi
Front255/45R19 104YRim 19x8.5 ET39 5x11235 psi
Rear285/40R19 107YRim 19x9.5 ET39 5x11238 psi
255/45R19 104VRim 19x8.5 ET39 5x11239 psi
255/40R20 101VRim 20x8.5 ET39 5x11239 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.
Trims sold in 2018
3
Generation
A217 sold in 2 market versions
Other years
All years (2015–2021)

Considering a different size?

Compare your current tire size with the one you want: diameter change, ground clearance and speedometer error.

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