tirewheelguide

2008 BMW Z4 tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 5x120 on every 2008 trim.

Tires for the 2008 BMW Z4

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

  1. 225/45R17 Best-rated standard on 3 trims · optional on 6 · Europe, Japan, USA
    Check price on Amazon · 225/45R17
  2. 225/55R16 Best-rated standard on 3 trims · optional on 1 · Europe, Japan
    Check price on Amazon · 225/55R16
  3. 225/45R17 front + 245/40R17 rear Best-rated standard on 3 trims · USA, Europe
    Check price on Amazon · 225/45R17 front Check price on Amazon · 245/40R17 rear

Also listed: 225/45R18 225/50R16 225/40R18 205/55R16 225/40R18 + 255/35R18

TireWheelGuide may earn a commission from purchases made through these links.

Trims sold in 2008
12
Generation
I (E85, E86) sold in 3 market versions

12 trims sold in 2008

Sold in 3 market versions with different tire sizes. Open a trim for its tire and rim sizes, bolt pattern and tire pressure. Trims with the same tires and wheels share a row.

BMW Z4 I (E85, E86)

2006–2008 12 trims

Europe

5 trims
Z4 2.0i 148 hp · 2.0L N46B20 I4 225/45R17 91W / 245/40R17 94W 8 fitments
Generation
E85/E86 Facelift · 2006–2008
Market
Europe
Power
148 hp
Engine
2.0L N46B20 I4, Petrol
Center bore
72.6 mm
Bolt pattern
5x120
Thread
M12 x 1.5
Check price on Amazon · 225/45R17 Check price on Amazon · 245/40R17 Wheels 17x8 ET46 · 5x120 · 72.6 mm on Amazon
Tire sizeRim size and bolt patternPressure, psi
Front225/45R17 91WRim 17x8 ET46 5x12029 psi
Rear245/40R17 94WRim 17x8.5 ET50 5x12032 psi
Front225/40R18 88WRim 18x8 ET47 5x12029 psi
Rear255/35R18 90WRim 18x8.5 ET50 5x12032 psi
Front225/40R18 88WRim 18x8 ET47 5x12029 psi
Rear255/35R18 90WRim 18x8.5 ET50 5x12032 psi
225/55R16 92VRim 16x7 ET47 5x12029 psi
205/55R16 91HRim 16x7 ET47 5x12029 psi
225/50R16 92VRim 16x7 ET47 5x12029 psi
225/50R16 92HRim 16x7 ET47 5x12029 psi
225/45R17 91WRim 17x8 ET46 5x12029 psi

How to read 91W: 91 is the load index (up to 1,356 lb / 615 kg per tire) and W the speed rating (up to 168 mph / 270 km/h). ET46 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres. Compare offsets in the wheel offset calculator.

Z4 2.5i 174 hp · N52B25A I6 225/55R16 92V 8 fitments
Generation
E85/E86 Facelift · 2006–2008
Market
Europe
Power
174 hp
Engine
N52B25A I6, Petrol
Center bore
72.6 mm
Bolt pattern
5x120
Thread
M12 x 1.5
Check price on Amazon · 225/55R16 Wheels 16x7 ET47 · 5x120 · 72.6 mm on Amazon
Tire sizeRim size and bolt patternPressure, psi
225/55R16 92VRim 16x7 ET47 5x12029 psi
205/55R16 91HRim 16x7 ET47 5x12029 psi
225/50R16 92VRim 16x7 ET47 5x12029 psi
225/50R16 92HRim 16x7 ET47 5x12029 psi
225/45R17 91WRim 17x8 ET46 5x12029 psi
225/45R17 91WRim 17x8.5 ET50 5x12029 psi
225/40R18 88WRim 18x8.5 ET50 5x12029 psi
225/40R18 88WRim 18x8.5 ET50 5x12029 psi

How to read 92V: 92 is the load index (up to 1,389 lb / 630 kg per tire) and V the speed rating (up to 149 mph / 240 km/h). ET47 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres.

Z4 2.5si 215 hp · 2.5L N52B25A I6 225/55R16 92V 8 fitments
Generation
E85/E86 Facelift · 2006–2008
Market
Europe
Power
215 hp
Engine
2.5L N52B25A I6, Petrol
Center bore
72.6 mm
Bolt pattern
5x120
Thread
M12 x 1.5
Check price on Amazon · 225/55R16 Wheels 16x7 ET47 · 5x120 · 72.6 mm on Amazon
Tire sizeRim size and bolt patternPressure, psi
225/55R16 92VRim 16x7 ET47 5x12030 psi
205/55R16 91HRim 16x7 ET47 5x12030 psi
225/50R16 92VRim 16x7 ET47 5x12030 psi
225/50R16 92HRim 16x7 ET47 5x12030 psi
225/45R17 91WRim 17x8 ET46 5x12030 psi
225/45R17 91WRim 17x8.5 ET50 5x12030 psi
225/40R18 88WRim 18x8.5 ET50 5x12030 psi
225/40R18 88WRim 18x8.5 ET50 5x12030 psi

How to read 92V: 92 is the load index (up to 1,389 lb / 630 kg per tire) and V the speed rating (up to 149 mph / 240 km/h). ET47 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres.

Z4 3.0si 261 hp · 3.0L N52B30 I6 225/45R17 91W 5 fitments
Generation
E85/E86 Facelift · 2006–2008
Market
Europe
Power
261 hp
Engine
3.0L N52B30 I6, Petrol
Center bore
72.6 mm
Bolt pattern
5x120
Thread
M12 x 1.5
Check price on Amazon · 225/45R17 Wheels 17x8 ET46 · 5x120 · 72.6 mm on Amazon
Tire sizeRim size and bolt patternPressure, psi
225/45R17 91WRim 17x8 ET46 5x12033 psi
225/50R16 92HRim 16x7 ET47 5x12033 psi
225/45R17 91WRim 17x8.5 ET50 5x12033 psi
225/40R18 88WRim 18x8.5 ET50 5x12033 psi
225/40R18 88WRim 18x8.5 ET50 5x12033 psi

How to read 91W: 91 is the load index (up to 1,356 lb / 615 kg per tire) and W the speed rating (up to 168 mph / 270 km/h). ET46 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres.

Z4 M 3.2i 338 hp · 3.2L S54B32 I6 225/45R18 91Z 2 fitments
Generation
E85/E86 Facelift · 2006–2008
Market
Europe
Power
338 hp
Engine
3.2L S54B32 I6, Petrol
Center bore
72.6 mm
Bolt pattern
5x120
Thread
M12 x 1.5
Check price on Amazon · 225/45R18 Wheels 18x9 ET30 · 5x120 · 72.6 mm on Amazon
Tire sizeRim size and bolt patternPressure, psi
225/45R18 91ZRim 18x9 ET30 5x12030 psi
225/40R18 92VRim 18x7.5 ET41 5x12030 psi

Japan

5 trims
Z4 2.5i (ABA-BU25) 174 hp · N52B25A I6 225/55R16 92V 8 fitments
Generation
E85/E86 Facelift · 2006–2008
Market
Japan
Power
174 hp
Engine
N52B25A I6, Petrol
Center bore
72.6 mm
Bolt pattern
5x120
Thread
M12 x 1.5
Check price on Amazon · 225/55R16 Wheels 16x7 ET47 · 5x120 · 72.6 mm on Amazon
Tire sizeRim size and bolt patternPressure, psi
225/55R16 92VRim 16x7 ET47 5x12029 psi
205/55R16 91HRim 16x7 ET47 5x12029 psi
225/50R16 92VRim 16x7 ET47 5x12029 psi
225/50R16 92HRim 16x7 ET47 5x12029 psi
225/45R17 91WRim 17x8 ET46 5x12029 psi
225/45R17 91WRim 17x8.5 ET50 5x12029 psi
225/40R18 88WRim 18x8.5 ET50 5x12029 psi
225/40R18 88WRim 18x8.5 ET50 5x12029 psi

How to read 92V: 92 is the load index (up to 1,389 lb / 630 kg per tire) and V the speed rating (up to 149 mph / 240 km/h). ET47 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres.

Z4 3.0si (ABA-BU30) +1 variant 261 hp · N52B30A I6 225/45R17 91W 5 fitments

Same tires and wheels on: 3.0si (ABA-DU30)

Generation
E85/E86 Facelift · 2006–2008
Market
Japan
Power
261 hp
Engine
N52B30A I6, Petrol
Center bore
72.6 mm
Bolt pattern
5x120
Thread
M12 x 1.5
Check price on Amazon · 225/45R17 Wheels 17x8 ET46 · 5x120 · 72.6 mm on Amazon
Tire sizeRim size and bolt patternPressure, psi
225/45R17 91WRim 17x8 ET46 5x12033 psi
225/50R16 92HRim 16x7 ET47 5x12033 psi
225/45R17 91WRim 17x8.5 ET50 5x12033 psi
225/40R18 88WRim 18x8.5 ET50 5x12033 psi
225/40R18 88WRim 18x8.5 ET50 5x12033 psi

How to read 91W: 91 is the load index (up to 1,356 lb / 615 kg per tire) and W the speed rating (up to 168 mph / 270 km/h). ET46 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres.

Z4 M Coupe (ABA-DU32) +1 variant 338 hp · 326S4 I6 225/45R18 91Z 1 fitment

Same tires and wheels on: M Roadster (ABA-BT32)

Generation
E85/E86 Facelift · 2006–2008
Market
Japan
Power
338 hp
Engine
326S4 I6, Petrol
Center bore
72.6 mm
Bolt pattern
5x120
Thread
M12 x 1.5
Check price on Amazon · 225/45R18 Wheels 18x9 ET30 · 5x120 · 72.6 mm on Amazon
Tire sizeRim size and bolt patternPressure, psi
225/45R18 91ZRim 18x9 ET30 5x12030 psi

USA

2 trims
Z4 3.0i 215 hp · 3.0L N52B30 I6 225/45R17 91W / 245/40R17 94W 6 fitments
Generation
E85/E86 Facelift · 2006–2008
Market
USA
Power
215 hp
Engine
3.0L N52B30 I6, Petrol
Center bore
72.6 mm
Bolt pattern
5x120
Thread
M12 x 1.5
Check price on Amazon · 225/45R17 Check price on Amazon · 245/40R17 Wheels 17x8 ET46 · 5x120 · 72.6 mm on Amazon
Tire sizeRim size and bolt patternPressure, psi
Front225/45R17 91WRim 17x8 ET46 5x12032 psi
Rear245/40R17 94WRim 17x8.5 ET50 5x12035 psi
Front225/40R18 88WRim 18x8 ET47 5x12032 psi
Rear255/35R18 90WRim 18x8.5 ET50 5x12035 psi
225/45R17 91WRim 17x8 ET46 5x12032 psi
205/55R16 91HRim 16x7 ET47 5x12032 psi
225/50R16 92HRim 16x7 ET47 5x12032 psi
225/45R17 91HRim 17x8 ET46 5x12032 psi

How to read 91W: 91 is the load index (up to 1,356 lb / 615 kg per tire) and W the speed rating (up to 168 mph / 270 km/h). ET46 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres.

Z4 3.0si 255 hp · 3.0L N52B30 I6 225/45R17 91W / 245/40R17 94W 4 fitments
Generation
E85/E86 Facelift · 2006–2008
Market
USA
Power
255 hp
Engine
3.0L N52B30 I6, Petrol
Center bore
72.6 mm
Bolt pattern
5x120
Thread
M12 x 1.5
Check price on Amazon · 225/45R17 Check price on Amazon · 245/40R17 Wheels 17x8 ET46 · 5x120 · 72.6 mm on Amazon
Tire sizeRim size and bolt patternPressure, psi
Front225/45R17 91WRim 17x8 ET46 5x12033 psi
Rear245/40R17 94WRim 17x8.5 ET50 5x12038 psi
Front225/40R18 88WRim 18x8 ET47 5x12033 psi
Rear255/35R18 90WRim 18x8.5 ET50 5x12038 psi
225/45R17 91WRim 17x8 ET46 5x12033 psi
225/45R17 91HRim 17x8 ET46 5x12033 psi

How to read 91W: 91 is the load index (up to 1,356 lb / 615 kg per tire) and W the speed rating (up to 168 mph / 270 km/h). ET46 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 2008
12
Generation
I (E85, E86) sold in 3 market versions
Other years
All years (2002–2026)

Considering a different size?

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

Open the size calculator

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