Tyre knowledge

Tyre Knowledge

Your tyres travel, on average, once around the globe and are your contact with the road. They are made of over 200 materials, including steel and artificial silk. And if they have the right pressure, they even save you money. Interested in more fascinating knowledge and helpful tips? You can find them here.

The EU Tyre Label

Safety, comfort, environmental friendliness, fuel consumption - all that depends on your tyres. The EU Tyre Label tells you in simple symbols what properties a model has.

It has been applicable since 1 November 2012 and has been mandatory for all brand-new tyres since 1 July 2012.

When do my tyres need to retire?

Tips on all aspects of tyre care. The maximum lifespan of tyres is 10 years - providing they are not damaged and their tread has not been worn down earlier. What can you do to make your tyres last longer? Here are some tips.

No hot tyre

You can affect how quickly your tyres wear out through your driving styles. Don't drive on hot tyres and avoid racing starts.

Keep away from the kerb

Don't bump against the kerb when parking: That may damage the rubber skin and the internal construction of your tyres. In the worst case, they may burst on the motorway.

The right pressure

Low pressure. Higher wear and tear. Check your tyre pressure regularly and increase it when carrying heavy loads. But be careful: Pressure that is too high also causes damage.

Check regularly

Measure your tread depth regularly and check your tyres for damage and deformations.

Have them balanced

Have your tyres balanced whenever you change them. That will extend their life and also protect bearings, steering system and suspension.

Keep the alignment

Only if the axle geometry is correct will your tyres wear evenly. Do your tyres have different wear patterns? Have your alignment set correctly again.

Keep clean

Protect your tyres against contact with oil, grease and fuel.

The correct tyre pressure

Less consumption. More safety. You will find what your correct tyre pressure is in your Owner's Manual and on your fuel tank cap. Depending on load, it may vary by up to 1 bar.       

Are overinflated tyres OK?

 If pressure is too high, power transmission is optimal only in the centre of the tyre, which means less driving comfort, the tread wears down unevenly and your tyres do not last as long.

Measure the pressure

Tyre pressure gauges can usually be found at any filling station. Since November 2014, all passenger car and SUV models have also been equipped with a Tyre Pressure Monitoring System. Check the pressure when the tyres are cold, where possible, and do not reduce it when the tyres are warm.

Is my tyre leaking?

If you have any doubts, proceed to Volkswagen Service Centre for further checks.

Tyre Pressure Monitoring System

Less consumption. More safety.

An underinflated tyre will quickly cause tyre damage - the reason for around 40 % of all accidents involving personal injury. That is why we have been equipping all Volkswagen Passenger Car and SUV models with a Tyre Pressure Monitoring System since November 2014. 

Tyre inflation pressure too low or Tyre Monitoring Indicator faulty

A tyre's inflation pressure has reduced considerably or a tyre has structural damage. Drive more slowly, avoid heavy steering and braking manoeuvres and check your tyres as quickly as possible. Is everything OK, but the light still illuminated? Have the system checked by your Volkswagen service advisor.

Too little tyre tread

Less grip

With only 4mm tread, your tyre has much less adhesion on a wet road. The tread no longer dissipates the water correctly and the tyre loses contact with the road surface. Do your tyres have less tread? Don't take a risk - have new tyres fitted.

 

225/45 R17 94 W

What do the numbers on my tyres mean?

Apart from the name of the manufacturer and the product, your tyres also contain many other important pieces of information such as tyre structure, rim diameter and maximum permitted speed.

Tyre width in mm

Passenger car tyres have a width of between 125mm and 335mm.

Height/width Ratio

How high is the tyre compared with the width of its cross-section in %? The smaller the number, the lower the sidewall.

Tyre structure

The tyre carcass consists of fine cord filaments. R (radial tyre): The filaments are at right angles to the direction of travel. D (diagonal tyre): The filaments run diagonally to it. Only tyres of one structure may be fitted at the same time. RF: run-flat tyres.

Rim diameter in inches

It is measured from rim edge to rim edge. 10" to 20" are standard.

Load index

Indicates the tyre's maximum load capacity in conjunction with its maximum speed. At 94, a maximum of 670kg is, for example, permitted - with the corresponding air pressure.

Speed index

The maximum permitted speed must be read in conjunction with the load index. At high speeds, the load capacity of the tyres may fall.

Many layers for more safety

A tyre consists of running surface and carcass

Running surface

1. Tread - for good road grip and for absorbing and dissipating water.
2. Jointless bandage - enables high speeds
3. Steel cord belt layers - optimise driving stability and rolling resistance.


Carcass

4. Cord body insert - for shape retention even at high levels of interior pressure.
5. Inner liner - makes the tyre air-tight.
6. Side strip - guards against lateral damage.
7. Core profile - improves driving stability, steering and comfort response.
8. Steel core - ensures firm grip on the rim.
9. Bead reinforcement - supports driving stability and precise steering response.

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