About Smart ForFour
Smart ForFour recommended tyre pressure can be found on a tyre placard on the side of driver’s door or door jam, on the fuel door or in the owners manual. Tyre inflation will be listed in psi (pounds per square inch), bar or kPa (kilopascals).
Smart ForFour Tyre Pressures
Checking regularly all tyres on your Smart ForFour, including your spare tyre, once a month or before a long trip is recommended.
Pressure Data
| Model / Engine | Tyre Size | Front tyre pressure | Rear tyre pressure |
| Smart ForFour 1.1 | 175 65 R14 82T | 32 | 32 |
| Smart ForFour 1.1 | 195 50 R15 82H | 32 | 32 |
| Smart ForFour 1.1 | 205 40 R17 84W | 32 | 32 |
| Smart ForFour 1.1 | 205 45 R16 83H | 32 | 32 |
| Smart ForFour 1.3 | 175 65 R14 82T | 32 | 32 |
| Smart ForFour 1.3 | 195 50 R15 82H | 32 | 32 |
| Smart ForFour 1.3 | 205 40 R17 84W | 32 | 32 |
| Smart ForFour 1.3 | 205 45 R16 83H | 32 | 32 |
| Smart ForFour 1.5 | 175 65 R14 82T | 32 | 32 |
| Smart ForFour 1.5 | 195 50 R15 82H | 32 | 32 |
| Smart ForFour 1.5 | 205 40 R17 84W | 32 | 32 |
| Smart ForFour 1.5 | 205 45 R16 83H | 32 | 32 |
| Smart ForFour 1.5 CDI | 175 65 R14 82T | 32 | 32 |
| Smart ForFour 1.5 CDI | 195 50 R15 82H | 32 | 32 |
| Smart ForFour 1.5 CDI | 205 40 R17 84W | 32 | 32 |
| Smart ForFour 1.5 CDI | 205 45 R16 83H | 32 | 32 |
How to Check and Maintain the Tyre Pressure on Your Smart ForFour Tyre Pressure
- Cool Down: Ensure tyres are cold (driven less than 2 miles).
- Unscrew: Remove the valve cap from the tyre valve.
- Measure: Press your gauge onto the valve stem firmly.
- Compare: Match reading to the table above or your door placard.
- Adjust: Add air if low; release air if high (using the pin in the valve).
- Cap: Replace the valve cap securely.
Understanding the Importance of Proper Tyre Pressure for Your Smart ForFour Tyre Pressure
Maintaining the correct tyre pressure is essential for the longevity of your tyres and fuel efficiency. Under-inflated tyres can lead to overheating and premature failure, while over-inflation results in a harsh ride, reduced traction, and uneven tread wear.
Maintaining the Ideal Tyre Pressure for Your Smart ForFour Tyre Pressure: Dos and Don'ts
- Do check pressures when tyres are cold (driven less than 2 miles).
- Do use a reliable gauge; gas station gauges can be inaccurate.
- Don't bleed air from hot tyres; pressures naturally rise when driving.
- Don't ignore the spare tyre check.
Winter vs. Summer Tyre Pressures
In winter, for the Smart ForFour Tyre Pressure, consider adding 0.2 bar (3 PSI) to the standard pressures if you are using winter tyres, as cold air causes pressure to drop.
5-Point Tyre Safety Check
- Pressure: Check all 4 tyres + spare monthly.
- Condition: Look for cuts, bulges, or embedded objects.
- Tread: Legal minimum is 1.6mm; recommended replacement at 3mm.
- Valves: Ensure caps are tight to prevent dirt ingress.
- Alignment: uneven wear indicates tracking issues.
Frequently Asked Questions
What is the recommended tyre pressure for the Smart ForFour Tyre Pressure?
For the Smart ForFour Tyre Pressure, the recommended tyre pressure typically ranges between 32 PSI and 32 PSI, depending on the specific trim level and year of manufacture. Always check your door jamb placard for the exact value.
What tyre sizes fit the Smart ForFour Tyre Pressure?
Common tyre sizes for the Smart ForFour Tyre Pressure include 32. Consult your vehicle's owner's manual for the full range of approved sizes.
How often should I check my Smart ForFour Tyre Pressure tyre pressure?
You should check the tyre pressure on your Smart ForFour Tyre Pressure at least once a month and before any long journeys. Cold inflation pressure (before driving) provides the most accurate reading.
