Caravans-Wohnm · Arca · Overview
Caravans-Wohnm Arca tyre pressure
- Drivetrain
- front-wheel drive
- Body
- passenger car
- PSI F / R
- 45-65 / 45-65
- Bar F / R
- 3.1-4.5 / 3.1-4.5
psi
55 / 55
Catalogue mid-points, front / rear · 3.1-4.5 / 3.1-4.5 bar
45-65 psi F · 45-65 psi R · 3.1-4.5 / 3.1-4.5 bar · 379/379 kPa
On a Caravans-Wohnm Arca the useful pair is 55 psi (3.79 bar) up front and 55 psi (3.79 bar) at the back, mid-range. A 10 °C overnight drop takes roughly 1 psi (0.07 bar) off a closed Caravans-Wohnm tyre.
Temperature and a cold gauge
Roughly 1 psi per 5–6 °C. The table uses 55 psi as a 20 °C baseline for this Arca.
| Ambient | Gauge (front mid) | Bar | kPa | Note |
|---|---|---|---|---|
| −5 °C (hard frost) | 52 psi | 3.59 bar | 359 kPa | Gauge reads low; do not overfill once warm |
| 0 °C | 53 psi | 3.65 bar | 365 kPa | Gauge reads low; do not overfill once warm |
| 8 °C (UK winter morning) | 54 psi | 3.72 bar | 372 kPa | Gauge reads low; do not overfill once warm |
| 20 °C (set cold here) | 55 psi | 3.79 bar | 379 kPa | Baseline |
| 30 °C | 57 psi | 3.93 bar | 393 kPa | Do not bleed a hot tyre |
| 38 °C (heatwave tarmac) | 58 psi | 4 bar | 400 kPa | Do not bleed a hot tyre |
Spare and inflator kit
A matching full-size spare on the Caravans-Wohnm Arca usually follows the higher axle (often the rear, near 45-65 psi). A space-saver is commonly 60 psi / 4.1 bar — read that tyre’s own sidewall. An inflator kit is not a spare; check the sealant date.
How to set the Arca
- Park the Caravans-Wohnm Arca for at least three hours (cold tyres).
- Use a calibrated gauge, not the only meter on a forecourt hose.
- Set the placard for that axle — about 45-65 psi / 3.1-4.5 bar front and 45-65 psi / 3.1-4.5 bar rear on this catalogue row.
- Recheck all four. A 2 psi miss on a front-wheel drive Arca is enough to feel a pull.
- Refit valve caps and reset TPMS if the handbook asks for a relearn.
Caravans-Wohnm notes
No special Caravans-Wohnm exception: the Arca uses the door-pillar placard. Size estimates on this page only help if you have left the original load index behind.
Estimated pressure by tyre size (225/40R18 and others)
If your Caravans-Wohnm Arca no longer wears the OEM diameter, start at the row nearest 225/40R18 or 205/60R16 and confirm with the tyre maker’s load table.
| Tyre size | Front PSI | Rear PSI | Front bar | Rear bar | Front kPa | Rear kPa | Note |
|---|---|---|---|---|---|---|---|
| 225/40R18 | 50 | 50 | 3.45 | 3.45 | 345 | 345 | Low-profile 18-inch |
| 205/60R16 | 50 | 50 | 3.45 | 3.45 | 345 | 345 | Taller 16-inch |
| 205/55R16 | 50 | 50 | 3.45 | 3.45 | 345 | 345 | Typical mid-compact OEM |
| 185/65R15 | 50 | 50 | 3.45 | 3.45 | 345 | 345 | Small / older car |
| 215/55R16 | 50 | 50 | 3.45 | 3.45 | 345 | 345 | Slightly wider 16-inch |
| 195/65R15 | 50 | 50 | 3.45 | 3.45 | 345 | 345 | Very common compact |
| 245/40R18 | 50 | 50 | 3.45 | 3.45 | 345 | 345 | Wide touring 18-inch |
| 225/50R17 | 50 | 50 | 3.45 | 3.45 | 345 | 345 | Touring 17-inch |
PSI, bar and kPa
1 bar ≈ 14.5 psi; 1 psi ≈ 6.89 kPa. Mid-points on the Arca: 55 psi = 3.79 bar = 379 kPa.
| PSI | Bar | kPa |
|---|---|---|
| 50 | 3.45 | 345 |
| 55 | 3.79 | 379 |
| 60 | 4.14 | 414 |
| 65 | 4.48 | 448 |
Pressure against load
Load moves the rear of a passenger car first. If the factory placard already has a “laden” column, use that instead of these sketches.
| Condition | Front (est.) | Rear (est.) |
|---|---|---|
| Driver only | 50 psi / 3.45 bar | 50 psi / 3.45 bar |
| Full occupancy | 50 psi / 3.45 bar | 50 psi / 3.45 bar |
| Motorway + luggage | 50 psi / 3.45 bar | 50 psi / 3.45 bar |
Caravans-Wohnm Arca placard versus sidewall
The tyre-information placard on a Caravans-Wohnm Arca sits on the driver’s door pillar (sometimes the fuel-filler flap). Catalogue figures here are a general band: 45-65 / 45-65 psi.
If the Caravans-Wohnm sticker and this page disagree, the sticker wins.
Other Caravans-Wohnm models
Questions about this Arca
How often should I check a Arca?
Monthly, before a long trip, and after a 10 °C weather swing. Include a full-size spare.
Should I bleed pressure after a motorway run?
No. Heat raises the gauge. Set cold only. Bleeding a hot tyre leaves it low the next morning.
What is that in bar and kPa for the Arca?
Mid-points are about 3.79 bar (379 kPa) front and 3.79 bar (379 kPa) rear.
What tyre pressure should a Caravans-Wohnm Arca use?
Catalogue reference is 45-65 psi front and 45-65 psi rear (3.1-4.5 / 3.1-4.5 bar), cold. Confirm on the door-pillar placard.
Front versus rear on the Caravans-Wohnm Arca?
This row is 45-65 F / 45-65 R. Even when they match, a laden rear can justify a higher number if the sticker prints one.
Handbook: placard · bar vs PSI · front vs rear · cold inflation