Vauxhall Astra tyre pressures
Front 35 psi (2.4 bar), rear 32 psi (2.2 bar) on the standard 17-inch wheels, and the figures for the other wheel size it was sold with. Manufacturer data, checked cold.
| Wheels | Tyre size | Front | Rear |
|---|---|---|---|
| 17"standard | 225/45R17 | 35 psi · 2.4 bar | 32 psi · 2.2 bar |
| 18" | 225/40R18 | 32 psi · 2.2 bar | 32 psi · 2.2 bar |
Manufacturer figures for the Vauxhall Astra (K), normal load, tyres cold. If the label on your door pillar or fuel flap says something different, go with that.
Tyres at the MOT
In 2025, the Vauxhall Astra (2015–2021) failed its MOT on tyres in 9.1% of 209,772 tests. Cars of the same age failed on tyres 6.2% of the time, so it failed more often than average for its age. Another 26.5% passed with a tyre advisory, usually tread close to the limit.
What the MOT tester checks on your tyres · The full 2025 figures
DVSA anonymised MOT data, 2025: MOT tests on cars (class 4), not counting retests. The figures cover the whole Vauxhall Astra (2015–2021) range, not only this version. Contains public sector information licensed under the Open Government Licence v3.0.
Resetting the tyre pressure warning light on your Vauxhall
It depends on the age. Most Vauxhalls from about 2009 to 2019 (Astra J and K, Insignia, Zafira, Mokka) have sensors in the wheels and show the live pressure of each tyre. Newer ones built with Peugeot parts (Corsa from 2019, Mokka from 2021, Astra from 2022, Crossland, Grandland) use an indirect deflation detection system that needs a reset.
- Newer models: set all four tyres to the correct cold pressure and apply the parking brake.
- Reset the tyre deflation detection through the Info Display settings, or by pressing the tyre-symbol button on cars that have one.
- Wait for the pop-up confirming the reset, then drive. It recalibrates over a longer drive.
Cars with sensors in the wheels (about 2009–2019)
- There's no reset to do. Set the correct cold pressures and drive; the warning clears once the sensors read the right pressure.
- You can check each tyre in the Vehicle Information menu.
- After changing or swapping wheels, leave the car parked for about 20 minutes, then drive. Relearning takes up to 10 minutes above 12 mph.
When to reset: Newer (indirect) models: reset after every pressure or wheel change. Sensor models: no reset needed.
Menu names vary by model and year, so check your handbook if yours looks different. More in what the warning light means.
Got a different Astra? Check by registration
Put your reg in and we'll show the figures for your exact car, including the wheel size it left the factory on.
What tyre pressure should a Astra have?
35 psi at the front and 32 psi at the rear (2.4 and 2.2 bar) on the standard 17-inch wheels, with the tyres cold. Larger optional wheels use slightly different figures — see the table above.
Should I use a higher pressure when the car is loaded?
The manufacturer gives one figure for this car, so no. If you're carrying a full load for a long motorway run, the label on the door pillar may show a higher figure — follow that if it does.
What tyre size does the Astra use?
225/45R17 or 225/40R18, depending on the wheels it was ordered with. The size is on the tyre's sidewall, e.g. 235/40R18.
Does the Vauxhall Astra (2015–2021) fail the MOT on tyres more often?
Yes, more often than average for its age. In 2025, 9.1% of Vauxhall Astra (2015–2021) MOT tests failed on tyres, against 6.2% for cars of the same age (DVSA MOT data, 209,772 tests). Another 26.5% passed with a tyre advisory.
Check them cold. Pressures are set for tyres that haven't been driven more than a mile or two. After a run they read 3–4 psi high.
Once a month, and before a long trip. Tyres lose about 1 psi a month on their own.
The sticker wins. If your car's door-pillar or fuel-flap label says something different, go with that — it knows your exact spec.