The Santro tyre pressure, front and rear alike, is 33 psi measured cold, whether your Santro runs 155/80 R13 or 165/70 R14 rubber. Most sources agree on that figure; one tyre listing shows 35 psi for some variants, so your own Santro's door pillar sticker has the last word.
The Santro is light and tall, and it feels the difference of a few psi more than a bigger car. A soft front makes the steering heavy in traffic; an over filled one makes it skip over rough patches. Here is how to keep it right.
Santro fitment card
- Tyre size
- 155/80 R13 (D-Lite, Era, Magna), 165/70 R14 (Sportz, Asta)
- Wheels
- 13 inch steel (lower variants), 14 inch steel with full covers (Sportz, Asta)
- Alloy wheels
- Not fitted at the factory on any variant
- Tyre pressure (cold)
- Front 33 psi, rear 33 psi; confirm on the driver door sticker
- Wiper blades
- 20 inch driver side, 16 inch passenger side
- Status
- No longer sold new; figures are for the last version
Santro tyre pressure chart
| Variant and tyre | Front (cold) | Rear (cold) |
|---|---|---|
| D-Lite, Era, Magna: 155/80 R13 | 33 psi | 33 psi |
| Magna CNG: 155/80 R13 | 33 psi | 33 psi |
| Sportz, Sportz CNG, Asta: 165/70 R14 | 33 psi | 33 psi |
A separate full load figure for the Santro was not something I could confirm, so none is listed. If your door label or manual gives one, use it for trips with a full cabin. That large psi value moulded by the Santro rim is the tyre's ceiling, not your target.
Where Hyundai prints the Santro figure
Swing the Santro driver door open and the tyre data sticker is on the pillar, listing sizes and pressures; the manual carries the same table. Bought a used Santro on unusual tyres? The sticker still shows factory sizes, so compare against our Santro tyre size chart before relying on it.
Filling a Santro the right way
- Gauge the Santro first thing, or once it has rested a few hours.
- Twist off every Santro valve cap; keep all four together.
- Dial 33 psi on the pump, fill, then verify using a pocket gauge.
- Lift the Santro boot floor and treat the spare too.
- Screw the caps back; grit in a Santro valve causes slow leaks.
Reaching a pump after an hour on the road, a Santro's tyres show a few psi extra from heat. Top up if under 33, but do not bleed warm tyres; correct them once cool.
Santro CNG and loaded trips
On the Magna CNG and Sportz CNG, the gas cylinder sits in the boot, adding steady weight over the rear wheels. Check the rear pair every week on a CNG Santro, and keep them at 33 psi as a minimum. With four adults and bags on an outstation trip, follow any full load figure on your label. Without one, keeping the set pressure exact matters more than ever.
Santro handling with the wrong air
A soft 155/80 R13 lets the Santro roll and sway in corners and scrubs both tread shoulders. It also costs fuel, which matters in a car bought for economy. Over inflation makes this light hatch skittish on monsoon roads, wears the tread centre and hurts braking on wet tar. A Santro drifting to one side often just has one tyre well below the rest, so gauge all four before booking an alignment.
33 psi in bar and kPa
When the pump screen shows metric units, set the Santro to roughly 2.3 bar, which is 228 kPa. For any other unit, open the tyre pressure converter. Habits that suit any car sit on the tyre pressure hub, and the earlier Santro Xing has its own Santro Xing tyre pressure page.
Monsoon and highway notes for Santro drivers
Before the rains, check pressure and tread together; a Santro on worn, soft tyres is the first to aquaplane through a waterlogged underpass. On the highway, a properly filled Santro tyre runs cooler and is less likely to fail at speed. If you hear a rhythmic thump or feel a sudden pull, slow down gently and stop somewhere safe to look.
Questions owners ask
How much air does a Santro take?
33 psi on both axles when cold, whichever rim size. The Santro door pillar sticker confirms it.
Is the Santro Sportz pressure different from the Magna?
No. Both the 165/70 R14 on the Sportz and the 155/80 R13 on the Magna are set to 33 psi in the sources I checked.
Some charts say 35 psi for the Santro. Which is right?
Most sources give 33 psi; one lists 35 psi for some variants. The label in your door frame is the maker's own figure, so use that.
How regularly should a Santro be gauged?
Fortnightly, plus the morning of any out of town drive; weekly for the rear pair on a CNG Santro.
Does a Santro CNG need more air?
Keep it at least at 33 psi and check the rear tyres more often because of the cylinder weight. Use a full load figure only if your label gives one.