Repairing run flat tyres
Can run flat tyres be repaired?
In some instances it is possible to repair run flat tyres after they have experienced a puncture, although not all garages and tyre depots have the inclination or the equipment to do this. Unlike others, etyres will always repair a damaged run flat tyre as long as it is considered safe and legal to do so. As standard, all our fitters will inspect a damaged tyre internally to check if it is safe to repair. During this process, the damage and condition of the tyre are taken into account in line with British Standard BS AU 159.
When repairing run flat tyres it is always important to check the advice from the manufacturer. Due to their design it can be harder to gauge the severity of the damage a run flat tyre has sustained compared to a standard tyre.
When a standard tyre is punctured and runs at reduced or zero pressure it can suffer damage to the sidewall that will render it unfit for repair and re-use. This damage is easily spotted once the tyre is removed and is usually seen as a creasing to the inner liner of the tyre in the sidewall area. This creasing indicates that damage has occurred to the internal construction of the tyre and further use could result in casing failure.
Due to its heavily reinforced sidewall construction, a run flat tyre will not exhibit these signs and there may be internal damage that cannot be seen. Because of this some manufacturers do not recommend repairing run flat tyres.
Official advice on run flat tyre repair
etyres takes advice direct from tyre manufacturers in respect of whether to repair run flat tyres. Currently the following tyre manufacturers acknowledge that, in line with British Standard BS AU 159 and subject to certain other conditions, their run flat tyres can be repaired:
The following tyre manufacturers advise that their run flat tyres should not be repaired:
Repairing Bridgestone run flat tyres
Advice from Bridgestone states that with certain types of punctures in the tread area the Bridgestone Run Flat Technology (RFT) tyres may be repaired, subject to certain conditions. These conditions include what speed the tyres were driven on after the puncture.
Repairing Continental run flat tyres
Advice from Continental states that their Self Supporting Runflat (SSR) run flat tyres should not be repaired or reused after they have been damaged or run on flat.
Repairing Dunlop run flat tyres
Advice from Dunlop states that their Dunlop Self Supporting Technology (DSST) run flat tyres are repairable provided that the puncture is within the repairable area as defined by British Standard BS AU 159.
Repairing Goodyear run flat tyres
Advice from Goodyear states that if a puncture occurs on one of their Extended Mobility Technology (EMT) run flat tyres, it can be repaired provided that the puncture is within the repairable area as defined by British Standard BS AU 159.
Repairing Michelin run flat tyres
Michelin state that their Zero Pressure (ZP) run flat tyres can be repaired once but the puncture repair must be completed in line with British Standard BS AU 159.
Repairing Pirelli run flat tyres
Official advice from Pirelli states that all run flat tyres should be changed and not repaired after a loss of pressure. Damaged Pirelli run flat tyres or those that have experienced a loss of pressure, should be replaced immediately.
If you experience a puncture call our National Sales Team on 0800 028 9000 . Visit our puncture repairs section for further information.