Caravans-Wohnm · Ma-Bu · Overview
Tyre pressure chart for the Caravans-Wohnm Ma-Bu
- 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
This front-wheel drive passenger car is filed here with a working range of 45-65/45-65 psi. The pillar sticker on your VIN still overrides the website. TPMS typically warns near 41 psi (about 25% below target). That is already a soft tyre, not a fill target.
Caravans-Wohnm Ma-Bu placard versus sidewall
Sidewall PSI is a carcass maximum. Recommended operating pressure for this Ma-Bu is the pillar sticker, near 55/55 psi.
Estimated pressure by tyre size (195/65R15 and others)
Planning cold pressures for sizes often seen on a passenger car. This Ma-Bu sample opens with 195/65R15, then 205/60R16 and 245/40R18.
| Tyre size | Front PSI | Rear PSI | Front bar | Rear bar | Front kPa | Rear kPa | Note |
|---|---|---|---|---|---|---|---|
| 195/65R15 | 50 | 50 | 3.45 | 3.45 | 345 | 345 | Very common compact |
| 205/60R16 | 50 | 50 | 3.45 | 3.45 | 345 | 345 | Taller 16-inch |
| 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 |
| 185/65R15 | 50 | 50 | 3.45 | 3.45 | 345 | 345 | Small / older car |
| 225/45R17 | 50 | 50 | 3.45 | 3.45 | 345 | 345 | Sport 17-inch |
| 215/50R17 | 50 | 50 | 3.45 | 3.45 | 345 | 345 | Plus-size 17-inch |
| 225/40R18 | 50 | 50 | 3.45 | 3.45 | 345 | 345 | Low-profile 18-inch |
Caravans-Wohnm notes
No special Caravans-Wohnm exception: the Ma-Bu uses the door-pillar placard. Size estimates on this page only help if you have left the original load index behind.
Temperature and a cold gauge
Roughly 1 psi per 5–6 °C. The table uses 55 psi as a 20 °C baseline for this Ma-Bu.
| 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 |
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 |
How to set the Ma-Bu
- Measure before the school run, not after the M25.
- Write LF / RF / RR / RL. Do not keep Ma-Bu numbers in your head.
- Add air in short bursts toward 55 psi (3.79 bar) front and 55 psi rear.
- If one corner is 4 psi down, hunt for a nail before you blame the weather.
- Log date, ambient temperature and the four readings.
Spare and inflator kit
A matching full-size spare on the Caravans-Wohnm Ma-Bu 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.
PSI, bar and kPa
1 bar ≈ 14.5 psi; 1 psi ≈ 6.89 kPa. Mid-points on the Ma-Bu: 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 |
If the Caravans-Wohnm sticker and this page disagree, the sticker wins.
Other Caravans-Wohnm models
Questions about this Ma-Bu
What PSI if I plus-size toward 245/40R18?
Keep load index at or above OEM. Low-profile sizes usually stay at or slightly above the placard. Use 195/65R15, 205/60R16 and 245/40R18 as a planning band.
What tyre pressure should a Caravans-Wohnm Ma-Bu 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.
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.
Is the sidewall number correct on a Caravans-Wohnm Ma-Bu?
No. Sidewall PSI is a maximum. The Ma-Bu placard is the operating target, near 45-65/45-65 psi.
When does TPMS warn on a Caravans-Wohnm Ma-Bu?
Direct TPMS typically flags about 25% below placard — near 41 psi on this row. Fill to the sticker, not to the lamp.
Handbook: placard · bar vs PSI · front vs rear · cold inflation