BMW Z4 tire pressures & sizes
| Tire Size | Position | Pressure |
|---|---|---|
| 225/45ZR17 91W | Front | 30 Bar |
| 225/45ZR17 91W | Rear | 30 Bar |
| 225/40ZR18 88W | Front | 30 Bar |
| 255/35ZR18 90W | Rear | 30 Bar |
| 225/50R16 92V | Front | 30 Bar |
| 225/50R16 92V | Rear | 30 Bar |
| 225/45R17 91W | Front | 30 Bar |
| 225/45R17 91W | Rear | 33 Bar |
| 225/40R18 88W | Front | 33 Bar |
| 255/35R18 90W | Rear | 36 Bar |
| 225/45R17 91W | Front | 32 Bar |
| 255/40R17 94W | Rear | 35 Bar |
| 225/45ZR18 | Front | 30 Bar |
| 255/40ZR18 | Rear | 32 Bar |
| 225/45R17 91V | Front | 32 Bar |
| 225/45R17 91V | Rear | 35 Bar |
| 225/45R17 91V | Front | 32 Bar |
| 255/40R17 94V | Rear | 35 Bar |
| 225/40R18 88Y | Front | 32 Bar |
| 255/35R18 90Y | Rear | 35 Bar |
| 225/35R19/XL 88Y | Front | 32 Bar |
| 255/30R19/XL 91Y | Rear | 35 Bar |
| 225/45ZR18/XL 95(Y) | Front | 32 Bar |
| 255/40ZR18/XL 99(Y) | Rear | 32 Bar |
| 255/35ZR19/XL 96(Y) | Front | 32 Bar |
| 275/35ZR19/XL 100(Y) | Rear | 32 Bar |
| 255/40ZR18 95(Y) | Front | 32 Bar |
| 275/40ZR18 99(Y) | Rear | 32 Bar |
| 255/35ZR19/XL 96(Y) | Front | 38 Bar |
| 285/30ZR20/XL 99(Y) | Rear | 38 Bar |
Legal Notices
The load and/or speed ratings displayed may differ slightly from the original size specified on the vehicle label. As a qualified professional, your tire dealer will be able to advise you in :
1. Informing you if the load and/or speed rating of the replacement tires is different from the original tires.
2. Determining whether the tire pressure should be adjusted for the proposed alternative size