Air pressure: find the correct tire pressure –

How to find the correct air pressure

The wrong air pressure in the tires not only costs fuel, it can even end in a catastrophe. Tire pressure tables and regular checks help to keep track of things.

Vot many drivers check their tire pressure very irregularly. Often only when the TPMS complains. The correct air pressure in the tires is crucial. This is the only way for the tires to keep their optimal driving characteristics. The length of the braking distances, the stability in curves, the risk of aquaplaning, the wear and tear or durability of the tires and also the fuel consumption all depend on this. Indeed which tire pressure is correct? Here is the most important information!

Which tire pressure is correct?

How high the optimal air pressure is for winter, summer or all-season tires depends primarily on the car. the The manufacturer makes specifications for this. The correct information can be found directly in or on the car. Usually the values ​​are hidden in the following places:
• on a sticker on the inside of the B-pillar
• on a sticker on the inside of the tank cap
• on a sticker in the glove compartment
• in the operating instructions
• An alternative is to look up the correct value in a tire pressure table. For example in the tire pressure table from Continental
Important: The tire pressure can vary depending on the load and must be increased when fully loaded. If you want to save fuel, you can slightly (!) Increase the tire pressure specified by the manufacturer by 0.2 to 0.3 bar.
Air pressure accessories to offer

GOODYEAR digital tire pressure tester

Price *: 13.25 euros

HAZET tire pressure tester

Price *: 25.05 euros

HEYNER tire pressure tester

Price *: 11.44 euros

Makita cordless compressor

Price *: 67.99 euros

Mannesmann mini aluminum compressor

Price *: 29.95 euros

* Price: Amazon price on October 7th, 2021

How often should you check the tire pressure?

Basically the recommendation is the air pressure regularly every 14 days to check. But very few motorists stick to it. Correct tire pressure is essential for safe driving behavior: tire pressure that is too low leads to unstable driving behavior and, in the worst case, causes a dangerous blowout.

Tire pressure

If the air pressure is too low, the quickest and safest way to detect it is to take regular measurements.

© Toni Bader

In addition, the correct air pressure is easy on the wallet, because fuel consumption and wear increase significantly if there is too little air. Even those who have a tire pressure monitoring system on board that warns as soon as a tire is insufficiently pressure should regularly check the air pressure (more about TPMS). The same applies to tires filled with tire gas. Although the mixture, which consists mainly of nitrogen, is better retained by the tire, regular air pressure checks are still necessary. Because Even minor changes of only half a bar less are sufficient to change the driving characteristics and increase fuel consumption by 0.3 liters per 100 kilometers.

What happens when you drive with the wrong tire pressure?

If there is not enough air in the tires, it will Driving behavior of the car spongy. This can manifest itself in a restless rear when changing lanes or unclean directional stability of the car. If the loss of air is serious, the ESP can intervene. Then you should check the tire pressure as soon as possible. But even without these strong signs, tire pressure that is too low has an unfavorable effect: braking distances are longer, driving behavior in corners deteriorates and wear and fuel consumption increase.

Video: tire pressure monitoring system for retrofitting

This is how retrofitting works

Increased air pressure is often less of a concern. To save fuel, many drivers increase the air pressure recommended by the manufacturer. One Deviations of 0.2 to 0.3 bar are harmless and does not affect safety. But air pressure that is significantly too high is risky. The reason: The contact area of ​​the tire is reduced, which means that grip is reduced (tires that spin quickly, especially when wet). If the tire pressure is permanently too high, the tire tread also runs unevenly and the tire is worn out early.

Air pressure control: This is how the tire pressure is checked

The easiest way is to check the tire pressure at the tank and, if necessary, top up with air. This is free of charge at most petrol stations. Alternatively, there are tire pressure gauges for at home as well as small compressors from the hardware store or accessory trade. Important when measuring: Check when the tires are as cold as possible, as warm air expands and falsifies the measured value. It is best to check the pressure at the nearest petrol station before starting your journey or after a few kilometers. If there is no other way and the tires have already warmed up, subtract 0.2 bar from the measured value. And: don’t forget the spare wheel.

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