Approved Tires BMW Z4 sDrive18i

2 variants · 1 configuration

Officially FEDRO-approved tire sizes for all BMW Z4 sDrive18i variants.

156.4 CVessence

2 variants

225/45 R17 91W

156.4 CV · 1 997 cc · essence · 1BE944156.4 CV · 1 997 cc · essence · 1BC840

Standard configuration

Front (AV)

225/45 R17 91W

Width225 mm

Aspect ratio45%

Wheel8 x 17" ET 29

Offset (ET)29 mm

615 kg max270 km/h

Rear (AR)

255/40 R17 94W

Width255 mm

Aspect ratio40%

Wheel8.5 x 17" ET 40

Offset (ET)40 mm

670 kg max270 km/h

Front + Rear

225/45 R17 91W

Width225 mm

Aspect ratio45%

Wheel8 x 17" ET 29

Offset (ET)29 mm

615 kg max270 km/h

Option 1

Front (AV)

225/40 R18 88W

Width225 mm

Aspect ratio40%

Wheel8 x 18" ET 29

Offset (ET)29 mm

560 kg max270 km/h

Rear (AR)

255/35 R18 90W

Width255 mm

Aspect ratio35%

Wheel8.5 x 18" ET 40

Offset (ET)40 mm

600 kg max270 km/h

Option 2

Front (AV)

225/35 R19 88Y

Width225 mm

Aspect ratio35%

Wheel8 x 19" ET 29

Offset (ET)29 mm

560 kg max300 km/h

Rear (AR)

255/30 R19 91Y

Width255 mm

Aspect ratio30%

Wheel9 x 19" ET 40

Offset (ET)40 mm

615 kg max300 km/h

Approved tires: official Swiss data

Every vehicle registered in Switzerland has a list of tire sizes approved by the Federal Roads Office (FEDRO). This data comes from type approvals (TARGA) and determines which tire sizes you can legally mount. Our tool displays standard and optional configurations with wheels, offset, load and speed ratings.

Why respect the approval?

Mounting non-approved tires can lead to inspection failure, fines, or even insurance cancellation in case of an accident. Always check that your tires match the approved sizes for your vehicle.