tirewheelguide

2018 Audi A6 Allroad tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 5x112 on every 2018 trim.

Tires for the 2018 Audi A6 Allroad

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

  1. 235/55R18 Best-rated standard on 7 trims · Europe, Japan
    Check price on Amazon · 235/55R18
  2. 255/45R19 Best-rated optional on 7 trims · Europe, Japan
    Check price on Amazon · 255/45R19
  3. 255/40R20 Best-rated optional on 7 trims · Europe, Japan
    Check price on Amazon · 255/40R20

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Trims sold in 2018
7
Generation
C7 sold in 2 market versions

7 trims sold in 2018

Sold in 2 market versions. Open a trim for its tire and rim sizes, bolt pattern and tire pressure. Trims with the same tires and wheels share a row.

Audi A6 Allroad C7

2012–2019 7 trims

Europe

6 trims
A6 Allroad 3.0TDi 315 hp · CVUA V6 · Diesel 235/55R18 100Y 5 fitments
Generation
C7 · 2012–2019
Market
Europe
Power
315 hp
Engine
CVUA V6, Diesel
Center bore
66.5 mm
Bolt pattern
5x112
Thread
M14 x 1.5
Check price on Amazon · 235/55R18 Wheels 18x8 ET41 · 5x112 · 66.5 mm on Amazon
Tire sizeRim size and bolt patternPressure, psi
235/55R18 100YRim 18x8 ET41 5x11233 psi
235/55R18 100HRim 18x7 ET38 5x11233 psi
255/45R19 100YRim 19x8.5 ET43 5x11236 psi
255/40R20 101YRim 20x8.5 ET43 5x11236 psi
255/40R20 101YRim 20x8.5 ET43 5x11236 psi

How to read 100Y: 100 is the load index (up to 1,764 lb / 800 kg per tire) and Y the speed rating (up to 186 mph / 300 km/h). ET41 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres.

A6 Allroad 3.0TDi +2 variants 215 hp · CRTE CZVA V6 · Diesel 235/55R18 100Y 5 fitments

3 versions of this trim share these tires and wheels.

Generation
C7 · 2012–2019
Market
Europe
Power
215 hp
Engine
CRTE CZVA V6, Diesel
Center bore
66.5 mm
Bolt pattern
5x112
Thread
M14 x 1.5
Check price on Amazon · 235/55R18 Wheels 18x8 ET41 · 5x112 · 66.5 mm on Amazon
Tire sizeRim size and bolt patternPressure, psi
235/55R18 100YRim 18x8 ET41 5x11233 psi
235/55R18 100HRim 18x7 ET38 5x11233 psi
255/45R19 100YRim 19x8.5 ET43 5x11236 psi
255/40R20 101YRim 20x8.5 ET43 5x11236 psi
255/40R20 101VRim 20x8.5 ET43 5x11236 psi

How to read 100Y: 100 is the load index (up to 1,764 lb / 800 kg per tire) and Y the speed rating (up to 186 mph / 300 km/h). ET41 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres.

A6 Allroad 3.0TFSi +1 variant 329 hp · 3.0L CREC V6 235/55R18 100Y 5 fitments

Same tires and wheels on: 55 TFSi

Generation
C7 · 2012–2019
Market
Europe
Power
329 hp
Engine
3.0L CREC V6, Petrol
Center bore
66.5 mm
Bolt pattern
5x112
Thread
M14 x 1.5
Check price on Amazon · 235/55R18 Wheels 18x8 ET41 · 5x112 · 66.5 mm on Amazon
Tire sizeRim size and bolt patternPressure, psi
235/55R18 100YRim 18x8 ET41 5x11233 psi
235/55R18 100HRim 18x7 ET38 5x11233 psi
255/45R19 100YRim 19x8.5 ET43 5x11233 psi
255/40R20 101YRim 20x8.5 ET43 5x11236 psi
255/40R20 101VRim 20x8.5 ET43 5x11236 psi

How to read 100Y: 100 is the load index (up to 1,764 lb / 800 kg per tire) and Y the speed rating (up to 186 mph / 300 km/h). ET41 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres.

Japan

1 trim
A6 Allroad 3.0TFSi (ABA-4GCREB) 329 hp · CRE V6 235/55R18 100Y 5 fitments
Generation
C7 · 2012–2019
Market
Japan
Power
329 hp
Engine
CRE V6, Petrol
Center bore
66.5 mm
Bolt pattern
5x112
Thread
M14 x 1.5
Check price on Amazon · 235/55R18 Wheels 18x8 ET41 · 5x112 · 66.5 mm on Amazon
Tire sizeRim size and bolt patternPressure, psi
235/55R18 100YRim 18x8 ET41 5x11233 psi
235/55R18 100HRim 18x7 ET38 5x11233 psi
255/45R19 100YRim 19x8.5 ET43 5x11233 psi
255/40R20 101YRim 20x8.5 ET43 5x11236 psi
255/40R20 101VRim 20x8.5 ET43 5x11236 psi

How to read 100Y: 100 is the load index (up to 1,764 lb / 800 kg per tire) and Y the speed rating (up to 186 mph / 300 km/h). ET41 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.
Thread size
Lug bolt or nut thread — needed when buying aftermarket fasteners.
Trims sold in 2018
7
Generation
C7 sold in 2 market versions
Other years
All years (2000–2026)

Considering a different size?

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