Tire pressure
BMW serie 4
Choose your engine and tire size. Pressures are for cold tires, front and rear.
37psi
Front
2.6 bar · 255 kPa
35psi
Rear
2.4 bar · 241 kPa
Keeping the right tire pressure on your BMW serie 4 is one of the easiest ways to drive safer and spend less on fuel. Under-inflated tires wear faster on the edges, over-inflated ones lose grip in the centre. Check them once a month and before a long trip.
Your tire, explained
255/40 R18 — what each number means, drawn to scale.
- Overall diameter
- –
- Sidewall height
- –
- Revolutions per mile
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Full pressure table
All engines and sizes for the BMW serie 4. Your selection is highlighted.
| Engine | Tire | Front | Rear |
|---|---|---|---|
| 420i | 225/50R17 | 36 psi · 2.5 bar | 34 psi · 2.3 bar |
| 420i | 225/45R18 | 36 psi · 2.5 bar | 34 psi · 2.3 bar |
| 420i | 255/40R18 | 37 psi · 2.6 bar | 35 psi · 2.4 bar |
| 420i | 225/40R19 | 38 psi · 2.6 bar | 36 psi · 2.5 bar |
| 420i | 255/35R19 | 38 psi · 2.6 bar | 36 psi · 2.5 bar |
| 420d | 225/50R17 | 36 psi · 2.5 bar | 34 psi · 2.3 bar |
| 420d | 225/45R18 | 36 psi · 2.5 bar | 34 psi · 2.3 bar |
| 420d | 255/40R18 | 37 psi · 2.6 bar | 35 psi · 2.4 bar |
| 420d | 225/40R19 | 38 psi · 2.6 bar | 36 psi · 2.5 bar |
| 420d | 255/35R19 | 38 psi · 2.6 bar | 36 psi · 2.5 bar |
| 430i | 225/50R17 | 36 psi · 2.5 bar | 34 psi · 2.3 bar |
| 430i | 225/45R18 | 36 psi · 2.5 bar | 34 psi · 2.3 bar |
| 430i | 255/40R18 | 37 psi · 2.6 bar | 35 psi · 2.4 bar |
| 430i | 225/40R19 | 38 psi · 2.6 bar | 36 psi · 2.5 bar |
| 430i | 255/35R19 | 38 psi · 2.6 bar | 36 psi · 2.5 bar |
| 430d | 225/50R17 | 36 psi · 2.5 bar | 34 psi · 2.3 bar |
| 430d | 225/45R18 | 36 psi · 2.5 bar | 34 psi · 2.3 bar |
| 430d | 255/40R18 | 37 psi · 2.6 bar | 35 psi · 2.4 bar |
| 430d | 225/40R19 | 38 psi · 2.6 bar | 36 psi · 2.5 bar |
| 430d | 255/35R19 | 38 psi · 2.6 bar | 36 psi · 2.5 bar |
| 440i | 225/50R17 | 36 psi · 2.5 bar | 34 psi · 2.3 bar |
| 440i | 225/45R18 | 36 psi · 2.5 bar | 34 psi · 2.3 bar |
| 440i | 255/40R18 | 37 psi · 2.6 bar | 35 psi · 2.4 bar |
| 440i | 225/40R19 | 38 psi · 2.6 bar | 36 psi · 2.5 bar |
| 440i | 255/35R19 | 38 psi · 2.6 bar | 36 psi · 2.5 bar |
| M4 | 255/40R18 | 38 psi · 2.6 bar | 36 psi · 2.5 bar |
| M4 | 275/35R18 | 39 psi · 2.7 bar | 37 psi · 2.6 bar |
| M4 | 255/35R19 | 39 psi · 2.7 bar | 37 psi · 2.6 bar |
| M4 | 275/35R19 | 39 psi · 2.7 bar | 37 psi · 2.6 bar |