Borgward · BX5 · Front
Front axle PSI and bar on the Borgward BX5
- Drivetrain
- front-wheel drive
- Body
- SUV / crossover
- PSI F / R
- 32-35 / 32-35
- Bar F / R
- 2.2-2.4 / 2.2-2.4
psi front
34
2.31 bar · 231 kPa at the steering axle
32-35 psi F · 32-35 psi R · 2.2-2.4 / 2.2-2.4 bar · 231/231 kPa
A 3 psi miss on one front corner of this BX5 shows up as a wander before the TPMS lamp bothers you. Target 34 psi (2.31 bar) cold. A 10 °C overnight drop takes roughly 1 psi (0.07 bar) off a closed Borgward tyre.
Borgward BX5 placard versus sidewall
Sidewall PSI is a carcass maximum. Recommended operating pressure for this BX5 is the pillar sticker, near 34/34 psi.
Estimated pressure by tyre size (245/55R19 and others)
If your Borgward BX5 no longer wears the OEM diameter, start at the row nearest 245/55R19 or 245/60R18 and confirm with the tyre maker’s load table.
| Tyre size | Front PSI | Rear PSI | Front bar | Rear bar | Front kPa | Rear kPa | Note |
|---|---|---|---|---|---|---|---|
| 245/55R19 | 36 | — | 2.48 | — | 248 | — | Low-profile 19-inch |
| 245/60R18 | 36 | — | 2.48 | — | 248 | — | Heavier CUV |
| 235/60R18 | 36 | — | 2.48 | — | 248 | — | Plus-size 18-inch |
| 235/65R17 | 35 | — | 2.41 | — | 241 | — | Mid-size SUV |
| 215/70R16 | 34 | — | 2.34 | — | 234 | — | Compact crossover |
| 255/50R20 | 37 | — | 2.55 | — | 255 | — | 20-inch plus-size |
| 225/65R17 | 35 | — | 2.41 | — | 241 | — | Very common 17-inch |
| 225/60R18 | 35 | — | 2.41 | — | 241 | — | Highway CUV |
Pressure against load
Load moves the rear of a SUV / crossover first. If the factory placard already has a “laden” column, use that instead of these sketches.
| Condition | Front (est.) | Rear (est.) |
|---|---|---|
| Driver only | 34 psi / 2.34 bar | 34 psi / 2.34 bar |
| Full occupancy | 35 psi / 2.41 bar | 36 psi / 2.48 bar |
| Motorway + luggage | 36 psi / 2.48 bar | 36 psi / 2.48 bar |
Steering feel on the BX5 lives on this axle. Do not drop front pressure to “soften” a plus-size 235/60R18; you will roll the sidewall in a roundabout.
How to set the BX5
- Measure before the school run, not after the M25.
- Write LF / RF / RR / RL. Do not keep BX5 numbers in your head.
- Add air in short bursts toward 34 psi (2.31 bar) front and 34 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.
PSI, bar and kPa
PSI-led conversions for the Borgward BX5 band (32-35 / 32-35).
| PSI | Bar | kPa |
|---|---|---|
| 30 | 2.07 | 207 |
| 32 | 2.21 | 221 |
| 33 | 2.28 | 228 |
| 33.5 | 2.31 | 231 |
| 35 | 2.41 | 241 |
| 36 | 2.48 | 248 |
| 38 | 2.62 | 262 |
| 40 | 2.76 | 276 |
| 44 | 3.03 | 303 |
| 50 | 3.45 | 345 |
| 60 | 4.14 | 414 |
Temperature drift
Roughly 1 psi per 5–6 °C. The table uses 34 psi as a 20 °C baseline for this BX5.
| Ambient | Gauge (front mid) | Bar | kPa | Note |
|---|---|---|---|---|
| −5 °C (hard frost) | 31 psi | 2.14 bar | 214 kPa | Gauge reads low; do not overfill once warm |
| 0 °C | 32 psi | 2.21 bar | 221 kPa | Gauge reads low; do not overfill once warm |
| 8 °C (UK winter morning) | 33 psi | 2.28 bar | 228 kPa | Gauge reads low; do not overfill once warm |
| 20 °C (set cold here) | 34 psi | 2.34 bar | 234 kPa | Baseline |
| 30 °C | 36 psi | 2.48 bar | 248 kPa | Do not bleed a hot tyre |
| 38 °C (heatwave tarmac) | 37 psi | 2.55 bar | 255 kPa | Do not bleed a hot tyre |
Borgward notes
No special Borgward exception: the BX5 uses the door-pillar placard. Size estimates on this page only help if you have left the original load index behind.
Spare and inflator kit
A matching full-size spare on the Borgward BX5 usually follows the higher axle (often the rear, near 32-35 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.
If the Borgward sticker and this page disagree, the sticker wins.
Other Borgward models
Questions about this BX5
What is that in bar and kPa for the BX5?
Mid-points are about 2.31 bar (231 kPa) front and 2.31 bar (231 kPa) rear.
Front versus rear on the Borgward BX5?
This row is 32-35 F / 32-35 R. Even when they match, a laden rear can justify a higher number if the sticker prints one.
How often should I check a BX5?
Monthly, before a long trip, and after a 10 °C weather swing. Include a full-size spare.
What tyre pressure should a Borgward BX5 use?
Catalogue reference is 32-35 psi front and 32-35 psi rear (2.2-2.4 / 2.2-2.4 bar), cold. Confirm on the door-pillar placard.
Is the sidewall number correct on a Borgward BX5?
No. Sidewall PSI is a maximum. The BX5 placard is the operating target, near 32-35/32-35 psi.
Handbook: placard · bar vs PSI · front vs rear · cold inflation