Damaged tyres cannot only cause damage to the vehicle but actually put the driver, passengers, and other road users at risk too.
Often tyres can be repaired quickly and at low cost. But when is a repair necessary and when should you replace your tyres instead?
Find out from our collection of commonly asked questions about tyre repairs below.
Can all types of tyre be repaired?
No. Although the majority of cars in the UK originally came fitted with regular tyres many are now fitted with run-flat tyres. Run flat tyres can be repaired using the same methods as for normal tyres.
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Puncture sealants, self-sealing tyres and Zero Pressure tyres
Punctures can happen to any tyre and replacing a tyre can be a challenge, even if you know what to do. In the event of a puncture injecting sealing products, like sealant foam, can be a partial and temporary solution to get you to a dealership. It’s essential to follow the manufacturer’s recommendations as these products could be incompatible with your tyre or vehicle, and each product may have different recommendations on how fast and how far you can go in order to find a dealer to replace your tyre. Puncture sealants should only be used to drive to a specialist and will not work on a ripped sidewall. Your dealer will then decide whether to repair or replace the damaged tyre.
Michelin tyres with Selfseal® Technology avoid pressure loss from punctures in the tread and immediately seal tread penetrations less than 6mm. We recommend that all inspections and repairs of MICHELIN Selfseal® tyres are carried out by a professional, as they will be able to check the condition of the tyre and decide on whether to repair or replace it. Michelin does not recommend using any other type of preventive or temporary tyre sealant solution with MICHELIN tyres with Selfseal® Technology.
MICHELIN ZP tyres are run flat tyres identified by the ZP logo on the sidewall. They have a reinforced sidewall to support the load of the car in event of a loss of pressure. With a MICHELIN ZP tyre you can continue driving at a maximum speed of 50mph for a maximum distance of 50 miles to allow you to find a dealer to replace the tyre. If more than 1 tyre is punctured, you should not continue driving.
Who can repair damaged tyres?
Don’t attempt to repair your own punctures or damages. Only certified individuals can legally repair a tyre. For a tyre to be correctly repaired it must be removed from the wheel and any internal damages need to be checked in case the tyre cannot be repaired. Repaired tyres that go without internal checks may rupture in service in the future due to internal secondary damage.
When can a tyre not be repaired?
Minor damage, away from the shoulders and sidewall are easily repairable depending on the size. But when a puncture or rip occurs anywhere close to or on the sidewall, then repairs won’t be completed. The reasoning behind this is that it will be difficult for that repair to be lasting and if the puncture does return, it could end up causing a blowout.
There also a number of other signs to look out for, if you spot any of these your tyre isn’t suitable for repair and needs replacing instead:
- Less than 1.6 mm tread depth
- Bead/cord damage (including rust)
- Aged rubber
- Multiple punctures
Car tyre repairs can only be completed by certified businesses and they may refuse to repair your tyres for a number of reasons such as if they suspect the car has driven on the flat for a substantial amount of time.
When does a tyre need repairing?
If you notice one tyre which is deflated more than any other, it is likely the tyre may have suffered a puncture. Any puncture, no matter the size, must be repaired. It is not safe to reinflate the tyre repeatedly as you risk damaging the tyre and the wheel, costing you more, while also putting yourself and your passengers at risk.
Signs that you may have a puncture:
- Sluggish or heavy steering
- Apparent drag in the car when rolling slowly
- A constant pull in one direction
- Warning from tyre pressure monitoring system
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