2018 Audi A6 Wheel Size & Fitment Specs

Confirmed OEM mounting and wheel configurations for this model year. Multiple setups are listed separately — nothing is collapsed to a single arbitrary size.

Bolt pattern5x112
Center bore66.6 mm
Thread sizeM14 x 1.5
FastenerLug bolts

Open wheel fitment calculator → · Tire sizes →

2.0TFSi

Position	Rim	Offset	Backspacing	Tire	Bore
Front / all	8x18	ET39	5.54"	245/45R18	66.5 mm
Front / all	8x19	ET42	5.65"	245/40R19	66.5 mm
Front / all	8.5x19	ET45	6.02"	255/40R19	66.5 mm
Front / all	8x17	ET39	5.54"	225/55R17	66.5 mm
Front / all	7.5x17	ET37	5.21"	225/55R17	66.5 mm
Front / all	7.5x18	ET37	5.21"	225/50R18	66.5 mm
Front / all	8x18	ET39	5.54"	245/45R18	66.5 mm
Front / all	8.5x19	ET45	6.02"	255/40R19	66.5 mm
Front / all	8.5x20	ET45	6.02"	255/35R20	66.5 mm
Front / all	8.5x20	ET43	5.94"	255/40R20	66.5 mm
Front / all	9x21	ET35	5.88"	265/30R21	66.5 mm
Front / all	8x19	ET42	5.65"	245/40R19	66.5 mm
Rear	7.5x19	ET33	5.05"	235/45R19	66.5 mm

Staggered / rear-specific sizes are listed separately from front.

3.0TFSi

Position	Rim	Offset	Backspacing	Tire	Bore
Front / all	8.5x19	ET45	6.02"	255/40R19	66.5 mm
Front / all	8.5x20	ET45	6.02"	255/35R20	66.5 mm
Front / all	9x21	ET39	6.04"	265/30R21	66.5 mm
Front / all	8x17	ET39	5.54"	225/55R17	66.5 mm
Front / all	7.5x17	ET37	5.21"	225/55R17	66.5 mm
Front / all	7.5x18	ET37	5.21"	225/50R18	66.5 mm
Front / all	8x18	ET39	5.54"	245/45R18	66.5 mm
Front / all	8.5x19	ET45	6.02"	255/40R19	66.5 mm
Front / all	8.5x20	ET45	6.02"	255/35R20	66.5 mm
Front / all	8.5x20	ET43	5.94"	255/40R20	66.5 mm
Front / all	9x21	ET35	5.88"	265/30R21	66.5 mm
Rear	7.5x19	ET33	5.05"	235/45R19	66.5 mm

Staggered / rear-specific sizes are listed separately from front.

1.8TFSi

Position	Rim	Offset	Backspacing	Tire	Bore
Front / all	7.5x16	ET37	5.21"	225/60R16	66.5 mm
Front / all	8x17	ET39	5.54"	225/55R17	66.5 mm
Front / all	7.5x17	ET37	5.21"	225/55R17	66.5 mm
Front / all	7.5x18	ET37	5.21"	225/50R18	66.5 mm
Front / all	8x18	ET39	5.54"	245/45R18	66.5 mm
Front / all	8.5x19	ET45	6.02"	255/40R19	66.5 mm
Front / all	8.5x20	ET45	6.02"	255/35R20	66.5 mm
Front / all	8.5x20	ET43	5.94"	255/35R20	66.5 mm
Front / all	9x21	ET35	5.88"	265/30R21	66.5 mm
Front / all	8x18	ET39	5.54"	245/45R18	66.5 mm
Front / all	8.5x19	ET39	5.79"	255/40R19	66.5 mm
Front / all	8.5x20	ET45	6.02"	255/35R20	66.5 mm
Rear	7.5x19	ET33	5.05"	235/45R19	66.5 mm

Staggered / rear-specific sizes are listed separately from front.

2.0TDi

Position	Rim	Offset	Backspacing	Tire	Bore
Front / all	7.5x16	ET37	5.21"	225/60R16	66.5 mm
Front / all	8x17	ET39	5.54"	225/55R17	66.5 mm
Front / all	7.5x17	ET37	5.21"	225/55R17	66.5 mm
Front / all	7.5x18	ET37	5.21"	225/50R18	66.5 mm
Front / all	8x18	ET39	5.54"	245/45R18	66.5 mm
Front / all	8x19	ET42	5.65"	245/40R19	66.5 mm
Front / all	8.5x19	ET45	6.02"	255/40R19	66.5 mm
Front / all	8.5x20	ET45	6.02"	255/35R20	66.5 mm
Front / all	8.5x20	ET43	5.94"	255/35R20	66.5 mm
Rear	7.5x19	ET33	5.05"	235/45R19	66.5 mm

Staggered / rear-specific sizes are listed separately from front.

3.0TDi

Position	Rim	Offset	Backspacing	Tire	Bore
Front / all	8x18	ET39	5.54"	245/45R18	66.5 mm
Front / all	8.5x19	ET45	6.02"	255/40R19	66.5 mm
Front / all	8.5x20	ET45	6.02"	255/35R20	66.5 mm
Front / all	7.5x16	ET37	5.21"	225/60R16	66.5 mm
Front / all	8x17	ET39	5.54"	225/55R17	66.5 mm
Front / all	7.5x17	ET37	5.21"	225/55R17	66.5 mm
Front / all	7.5x18	ET37	5.21"	225/50R18	66.5 mm
Front / all	8.5x19	ET39	5.79"	255/40R19	66.5 mm
Front / all	8.5x20	ET45	6.02"	255/35R20	66.5 mm
Front / all	9x21	ET39	6.04"	265/30R21	66.5 mm

40 TDi

Position	Rim	Offset	Backspacing	Tire	Bore
Front / all	7.5x17	ET36	5.17"	225/60R17	66.5 mm
Front / all	8x18	ET39	5.54"	225/55R18	66.5 mm
Front / all	8.5x20	ET43	5.94"	255/40R20	66.5 mm
Front / all	8.5x21	ET43	5.94"	255/35R21	66.5 mm
Rear	8x19	ET39	5.54"	245/45R19	66.5 mm
Rear	8.5x19	ET40	5.82"	245/45R19	66.5 mm

Staggered / rear-specific sizes are listed separately from front.

40 TDi quattro

Position	Rim	Offset	Backspacing	Tire	Bore
Front / all	7.5x17	ET36	5.17"	225/60R17	66.5 mm
Front / all	8x18	ET39	5.54"	225/55R18	66.5 mm
Front / all	8.5x20	ET43	5.94"	255/40R20	66.5 mm
Front / all	8.5x21	ET43	5.94"	255/35R21	66.5 mm
Rear	8x19	ET39	5.54"	245/45R19	66.5 mm
Rear	8.5x19	ET40	5.82"	245/45R19	66.5 mm

Staggered / rear-specific sizes are listed separately from front.

45 TDi quattro

Position	Rim	Offset	Backspacing	Tire	Bore
Front / all	7.5x17	ET36	5.17"	225/60R17	66.5 mm
Front / all	8x18	ET39	5.54"	225/55R18	66.5 mm
Front / all	8.5x20	ET43	5.94"	255/40R20	66.5 mm
Front / all	8.5x21	ET43	5.94"	255/35R21	66.5 mm
Rear	8x19	ET39	5.54"	245/45R19	66.5 mm
Rear	8.5x19	ET40	5.82"	245/45R19	66.5 mm

Staggered / rear-specific sizes are listed separately from front.

45 TFSi

Position	Rim	Offset	Backspacing	Tire	Bore
Front / all	7.5x17	ET36	5.17"	225/60R17	66.5 mm
Front / all	8x18	ET39	5.54"	225/55R18	66.5 mm
Front / all	8.5x20	ET43	5.94"	255/40R20	66.5 mm
Front / all	8.5x21	ET43	5.94"	255/35R21	66.5 mm
Rear	8x19	ET39	5.54"	245/45R19	66.5 mm
Rear	8.5x19	ET40	5.82"	245/45R19	66.5 mm

Staggered / rear-specific sizes are listed separately from front.

45 TFSi quattro

Position	Rim	Offset	Backspacing	Tire	Bore
Front / all	7.5x17	ET36	5.17"	225/60R17	66.5 mm
Front / all	8x18	ET39	5.54"	225/55R18	66.5 mm
Front / all	8.5x20	ET43	5.94"	255/40R20	66.5 mm
Front / all	8.5x21	ET43	5.94"	255/35R21	66.5 mm
Rear	8x19	ET39	5.54"	245/45R19	66.5 mm
Rear	8.5x19	ET40	5.82"	245/45R19	66.5 mm

Staggered / rear-specific sizes are listed separately from front.

50 TDi quattro

Position	Rim	Offset	Backspacing	Tire	Bore
Front / all	7.5x17	ET36	5.17"	225/60R17	66.5 mm
Front / all	8x18	ET39	5.54"	225/55R18	66.5 mm
Front / all	8.5x20	ET43	5.94"	255/40R20	66.5 mm
Front / all	8.5x21	ET43	5.94"	255/35R21	66.5 mm
Rear	8x19	ET39	5.54"	245/45R19	66.5 mm
Rear	8.5x19	ET40	5.82"	245/45R19	66.5 mm

Staggered / rear-specific sizes are listed separately from front.

55 TFSi quattro

Position	Rim	Offset	Backspacing	Tire	Bore
Front / all	8x18	ET39	5.54"	225/55R18	66.5 mm
Front / all	8.5x20	ET43	5.94"	255/40R20	66.5 mm
Front / all	8.5x21	ET43	5.94"	255/35R21	66.5 mm
Rear	8x19	ET39	5.54"	245/45R19	66.5 mm
Rear	8.5x19	ET40	5.82"	245/45R19	66.5 mm

Staggered / rear-specific sizes are listed separately from front.

1.8TFSi (ABA-4GCYG)

Position	Rim	Offset	Backspacing	Tire	Bore
Front / all	8x17	ET39	5.54"	225/55R17	66.5 mm
Front / all	8x18	ET39	5.54"	225/50R18	66.5 mm
Front / all	8x18	ET39	5.54"	245/45R18	66.5 mm

2.0TFSi (ABA-4GCYPS)

Position	Rim	Offset	Backspacing	Tire	Bore
Front / all	8x18	ET39	5.54"	245/45R18	66.5 mm
Front / all	8x19	ET42	5.65"	245/40R19	66.5 mm
Front / all	8.5x19	ET45	6.02"	255/40R19	66.5 mm

3.0TFSi (ABA-4GCRES)

Position	Rim	Offset	Backspacing	Tire	Bore
Front / all	8x18	ET39	5.54"	245/45R18	66.5 mm
Front / all	8.5x19	ET45	6.02"	255/40R19	66.5 mm
Front / all	8.5x20	ET45	6.02"	255/35R20	66.5 mm

2.5FSi

Position	Rim	Offset	Backspacing	Tire	Bore
Front / all	8x17	ET39	5.54"	225/55R17	66.5 mm
Front / all	8x18	ET39	5.54"	245/45R18	66.5 mm
Front / all	8x19	ET42	5.65"	245/40R19	66.5 mm
Front / all	8.5x19	ET45	6.02"	255/40R19	66.5 mm

Vehicles with potentially interchangeable wheels

Filtered by exact bolt pattern and physically compatible center bore — not a full fitment guarantee.

2022 BMW iX
- 5x112 bolt pattern
- matching center bore
- compare rim diameter vs OEM 18"
- compare rim width vs OEM 8"
- compare offset vs OEM ET39
Compare on fitment tool →
2022 Audi e-tron
- 5x112 bolt pattern
- matching center bore
- compare rim diameter vs OEM 18"
- compare rim width vs OEM 8"
- compare offset vs OEM ET39
Compare on fitment tool →
2022 BMW X7
- 5x112 bolt pattern
- matching center bore
- compare rim diameter vs OEM 18"
- compare rim width vs OEM 8"
- compare offset vs OEM ET39
Compare on fitment tool →
2022 BMW X3
- 5x112 bolt pattern
- matching center bore
- compare rim diameter vs OEM 18"
- compare rim width vs OEM 8"
- compare offset vs OEM ET39
Compare on fitment tool →
2022 BMW X4
- 5x112 bolt pattern
- matching center bore
- compare rim diameter vs OEM 18"
- compare rim width vs OEM 8"
- compare offset vs OEM ET39
Compare on fitment tool →
2022 BMW M5
- 5x112 bolt pattern
- matching center bore
- compare rim diameter vs OEM 18"
- compare rim width vs OEM 8"
- compare offset vs OEM ET39
Compare on fitment tool →
2022 BMW X1
- 5x112 bolt pattern
- matching center bore
- compare rim diameter vs OEM 18"
- compare rim width vs OEM 8"
- compare offset vs OEM ET39
Compare on fitment tool →
2022 BMW X6
- 5x112 bolt pattern
- matching center bore
- compare rim diameter vs OEM 18"
- compare rim width vs OEM 8"
- compare offset vs OEM ET39
Compare on fitment tool →
2022 BMW X5
- 5x112 bolt pattern
- matching center bore
- compare rim diameter vs OEM 18"
- compare rim width vs OEM 8"
- compare offset vs OEM ET39
Compare on fitment tool →
2022 BMW M8
- 5x112 bolt pattern
- matching center bore
- compare rim diameter vs OEM 18"
- compare rim width vs OEM 8"
- compare offset vs OEM ET39
Compare on fitment tool →

Hardware matching known specs

Dorman 611-236 Wheel Lug Nut M14-1.50
Thread matches catalog hardware
M14 x 1.5
View on Amazon
White Knight M14 x 1.50 Lug Nuts
Thread matches catalog hardware
M14 x 1.5
View on Amazon
White Knight 3809XLBK-33AM Black M14x1.50 Lug Nuts
Thread matches catalog hardware
M14 x 1.5
View on Amazon