| Retrofitting/prerequisites for use of tyres with emergency running characteristics |
| Since loss of pressure is not always recognisable at first glance on tyres with emergency running characteristics, it is necessary for vehicles on which such tyres are used to have a tyre inflation pressure control system. With such a system the drive is notified when the inflation pressure drops to below a certain value. |
| Tyres with emergency running characteristics require rims with extended double hump (extended double hump EH2) → Chapter. |
| Mixed mounting together with standard tyres is not permissible even in pairs on one axle. |
| A standard tyre may be mounted only in exceptions for a short time or for a limited distance. However, this eliminates the special emergency running characteristics and it is necessary to advise the driver of this specifically. |
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