Bmw Z Series Tyre Pressures

Manufacturer-recommended front and rear pressures for every Z Series tyre size — in psi, bar or kPa.

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Find the right pressure for your Bmw Z Series

Not sure of your wheel size? It's the last number in the tyre size on your sidewall.

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How to check

Checking your Bmw Z Series tyre pressure

Two minutes at home or on a garage forecourt is all it takes.

Find your pressure

Look up your tyre size in the pressure chart, or check the sticker inside the driver's door jamb or fuel filler flap.

Check the tyres cold

Recommended figures are cold pressures — measure before driving, or at least a couple of hours after a journey.

Top up all four monthly

Check every tyre (and the spare) once a month and before long trips, then refit the valve caps securely.

Tyre Pressure Chart

Recommended pressures for your Bmw Z Series

Cold inflation pressures as recommended by Bmw. Use the laden figures when the car is fully loaded with passengers or luggage.

Tyre sizeFrontFront (loaded)RearRear (loaded)
205/60 R15 91H 29 psi2.0 bar200 kPa 29 psi2.0 bar200 kPa 29 psi2.0 bar200 kPa 29 psi2.0 bar200 kPa
205/60 R15 91V 29 psi2.0 bar200 kPa 29 psi2.0 bar200 kPa 29 psi2.0 bar200 kPa 29 psi2.0 bar200 kPa
205/55 R16 91H 29 psi2.0 bar200 kPa 29 psi2.0 bar200 kPa 29 psi2.0 bar200 kPa 29 psi2.0 bar200 kPa
205/55 R16 91T 29 psi2.0 bar200 kPa 29 psi2.0 bar200 kPa 33 psi2.3 bar228 kPa 33 psi2.3 bar228 kPa
205/55 R16 91V 29 – 34 psi2.0 – 2.3 bar200 – 234 kPa 29 psi2.0 bar200 kPa 29 – 37 psi2.0 – 2.6 bar200 – 255 kPa 29 psi2.0 bar200 kPa
225/50 R16 92H 29 psi2.0 bar200 kPa 29 psi2.0 bar200 kPa 29 psi2.0 bar200 kPa 29 psi2.0 bar200 kPa
225/50 R16 91V 29 psi2.0 bar200 kPa 30 psi2.1 bar207 kPa 29 psi2.0 bar200 kPa 33 psi2.3 bar228 kPa
225/50 R16 92V 29 – 36 psi2.0 – 2.5 bar200 – 248 kPa 29 – 36 psi2.0 – 2.5 bar200 – 248 kPa 33 – 39 psi2.3 – 2.7 bar228 – 269 kPa 33 – 44 psi2.3 – 3.0 bar228 – 303 kPa
225/50 R16 92W 29 psi2.0 bar200 kPa 29 psi2.0 bar200 kPa 33 psi2.3 bar228 kPa 33 psi2.3 bar228 kPa
225/50 R16 92Y 29 psi2.0 bar200 kPa ––– 29 psi2.0 bar200 kPa –––
205/45 R17 88W 32 psi2.2 bar221 kPa 32 psi2.2 bar221 kPa 32 psi2.2 bar221 kPa 32 psi2.2 bar221 kPa
225/45 R17 91H 29 – 36 psi2.0 – 2.5 bar200 – 248 kPa 29 – 36 psi2.0 – 2.5 bar200 – 248 kPa 29 – 39 psi2.0 – 2.7 bar200 – 269 kPa 29 – 44 psi2.0 – 3.0 bar200 – 303 kPa
225/45 R17 91W 29 – 36 psi2.0 – 2.5 bar200 – 248 kPa 29 – 36 psi2.0 – 2.5 bar200 – 248 kPa 33 – 39 psi2.3 – 2.7 bar228 – 269 kPa 33 – 44 psi2.3 – 3.0 bar228 – 303 kPa
225/45 R17 90Y 29 psi2.0 bar200 kPa ––– ––– –––
225/45 R17 91Y 29 psi2.0 bar200 kPa 29 psi2.0 bar200 kPa 32 psi2.2 bar221 kPa 32 psi2.2 bar221 kPa
225/45 R17 92Y 29 psi2.0 bar200 kPa ––– ––– –––
225/45 R17 94Y 29 psi2.0 bar200 kPa 29 psi2.0 bar200 kPa ––– –––
225/50 R17 98H 36 psi2.5 bar248 kPa 36 psi2.5 bar248 kPa 39 psi2.7 bar269 kPa 44 psi3.0 bar303 kPa
225/50 R17 94W 36 psi2.5 bar248 kPa 36 psi2.5 bar248 kPa ––– –––
245/40 R17 91W ––– ––– 33 psi2.3 bar228 kPa 33 psi2.3 bar228 kPa
245/40 R17 94W ––– ––– 38 psi2.6 bar262 kPa 38 psi2.6 bar262 kPa
245/40 R17 90Y ––– ––– 29 psi2.0 bar200 kPa –––
245/40 R17 91Y ––– ––– 29 psi2.0 bar200 kPa 29 psi2.0 bar200 kPa
245/40 R17 92Y ––– ––– 29 psi2.0 bar200 kPa –––
255/40 R17 94W ––– ––– 39 psi2.7 bar269 kPa 44 psi3.0 bar303 kPa
255/45 R17 98W ––– ––– 39 psi2.7 bar269 kPa 44 psi3.0 bar303 kPa
225/40 R18 92H 29 psi2.0 bar200 kPa 29 psi2.0 bar200 kPa ––– –––
225/40 R18 92V 36 psi2.5 bar248 kPa 36 psi2.5 bar248 kPa 39 psi2.7 bar269 kPa 44 psi3.0 bar303 kPa
225/40 R18 88W 29 – 38 psi2.0 – 2.6 bar200 – 262 kPa 29 – 38 psi2.0 – 2.6 bar200 – 262 kPa 39 psi2.7 bar269 kPa 44 psi3.0 bar303 kPa
225/40 R18 92W 36 psi2.5 bar248 kPa 36 psi2.5 bar248 kPa ––– –––
225/40 R18 92Y 29 psi2.0 bar200 kPa 29 psi2.0 bar200 kPa 32 psi2.2 bar221 kPa 32 psi2.2 bar221 kPa
225/45 R18 88Y 31 psi2.1 bar214 kPa ––– ––– –––
225/45 R18 93Y 36 psi2.5 bar248 kPa 36 psi2.5 bar248 kPa ––– –––
225/45 R18 95Y 36 psi2.5 bar248 kPa 36 psi2.5 bar248 kPa ––– –––
255/35 R18 94V ––– ––– 39 psi2.7 bar269 kPa 44 psi3.0 bar303 kPa
255/35 R18 90W ––– ––– 39 psi2.7 bar269 kPa 44 psi3.0 bar303 kPa
255/35 R18 94W 32 psi2.2 bar221 kPa 32 psi2.2 bar221 kPa 32 psi2.2 bar221 kPa 32 psi2.2 bar221 kPa
255/35 R18 90Y ––– ––– 39 psi2.7 bar269 kPa 44 psi3.0 bar303 kPa
255/35 R18 94Y 32 psi2.2 bar221 kPa 32 psi2.2 bar221 kPa 33 psi2.3 bar228 kPa 33 psi2.3 bar228 kPa
255/40 R18 99V 36 psi2.5 bar248 kPa 36 psi2.5 bar248 kPa 39 psi2.7 bar269 kPa 44 psi3.0 bar303 kPa
255/40 R18 88Y ––– ––– 32 psi2.2 bar221 kPa –––
255/40 R18 95Y 36 psi2.5 bar248 kPa 36 psi2.5 bar248 kPa 39 psi2.7 bar269 kPa 44 psi3.0 bar303 kPa
255/40 R18 99Y ––– ––– 39 psi2.7 bar269 kPa 44 psi3.0 bar303 kPa
275/40 R18 99Y ––– ––– 39 psi2.7 bar269 kPa 44 psi3.0 bar303 kPa
225/35 R19 88Y 36 psi2.5 bar248 kPa 36 psi2.5 bar248 kPa 39 psi2.7 bar269 kPa 44 psi3.0 bar303 kPa
255/30 R19 91Y 32 psi2.2 bar221 kPa 32 psi2.2 bar221 kPa 39 psi2.7 bar269 kPa 44 psi3.0 bar303 kPa
255/35 R19 96Y 36 psi2.5 bar248 kPa 36 psi2.5 bar248 kPa ––– –––
275/35 R19 100Y ––– ––– 39 psi2.7 bar269 kPa 44 psi3.0 bar303 kPa

Always double-check against the tyre placard inside the driver's door or your Bmw handbook — pressures can vary by exact specification and year.

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Why it matters

The right pressure pays for itself

Tyres naturally lose around 1–2 psi a month, and more in cold weather — so even careful drivers end up under-inflated. Running your Z Series below Bmw's recommended pressure increases rolling resistance, which means more fuel burned, faster shoulder wear and longer braking distances in the wet.

Over-inflating isn't the answer either: too much air shrinks the tyre's contact patch, wearing the centre of the tread and making grip and ride quality worse. The recommended figures in the chart are the sweet spot — and if you're carrying a full load of passengers or luggage, switch to the laden values before you set off.

How pressure shapes your grip on the road

Under-inflated Only the shoulders touch — vague steering, extra fuel, hot edges
Correct pressure Full, even contact — best grip, wear and fuel economy
Over-inflated Just the centre grips — harsher ride, faster middle wear

The red zones are where a mis-inflated tyre carries the load — and where it wears out first.

Help & Advice

Tyre pressure questions, answered

What tyre pressure should a Bmw Z Series be?
It depends on your tyre size — most Z Series fitments sit roughly between 30 and 38 psi (about 2.1–2.6 bar). Use the chart on this page to find your exact size, and confirm against the sticker inside the driver's door jamb or your handbook.
Where do I find the recommended pressure on the car?
Most Bmw models have a tyre placard inside the driver's door jamb; some print it inside the fuel filler flap or glovebox lid. It lists front and rear pressures for each approved tyre size, including fully-laden figures. The owner's handbook has the same table.
When should I use the laden pressures?
Use the laden (loaded) figures when the car is carrying close to a full load — four or five occupants, a packed boot, or towing. The extra pressure supports the added weight and keeps the car stable. Drop back to the normal figures once you've unloaded.
What's the difference between psi, bar and kPa?
They're just different units for the same pressure. UK forecourt gauges usually read psi (pounds per square inch), European handbooks often quote bar, and kPa (kilopascals) appears on many door stickers. 1 bar = 14.5 psi = 100 kPa — or simply switch units on the pressure chart.
How often should I check my tyre pressures?
Once a month, and always before a long journey or when loading the car up. Tyres lose air naturally, and a visual glance won't spot a few psi missing. Check them cold, and if one tyre keeps losing pressure faster than the rest, have it inspected — it may have a slow puncture.
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