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Tyres with emergency running characteristics SST/runflat (self-supporting tyre) > < Run flat tyres (tyres with emergency running characteristics)

Leon Mk1

General information
General information
On tyres with emergency running characteristics the side wall is reinforced in comparison to normal tyres. This reduces chafing on the side wall when the tyre looses pressure and prevents the side walls from being pinched. The vehicle remains manoeuvrable and its handling characteristics are almost normal. This makes it unnecessary to change the spare tyre under hazardous circumstances such as on freeways or in inclement weather.
In event of a tyre fault, the trip can be continued to the next workshop (approx. 50 km) with appropriate speed (max. 80 km/h) and with a driving style that is suitable for the conditions, see → Instruction manual.
In the event of a flat the driver is always responsible for deciding if it is possible to continue a trip after checking the condition of the affected tyre(s).
   
-I- Tyres with normal inflation pressure
1 - Tyres with emergency running characteristics (reinforced side wall -red-)
2 - Normal tyres
-I- Tyres without inflation pressure
When a normal tyre -2- looses air, the side wall is pressed together extremely by the rim. The tyre side wall heats up highly when operated without inflation pressure or is pinched and thereby damaged.
On tyres with emergency running characteristic -1- the tyre is supported by the reinforced side wall (-red-). Due to a special rubber mixture and the low friction to which the side is subject, the tyre does not heat up as highly during operation and the vehicle remains steerable.
  Note
Note the special conditions for use of tyres with emergency running characteristics → Chapter.
Identification
  N44-10342
Tyres with emergency running characteristics can be recognised by the the following abbreviations: DSST, Euforia, RFT, ROF, RSC, SSR or ZP. These abbreviations are listed on the side of the tyre behind the tyre description of the respective tyre manufacturer.
  N44-10344
Body
1 - Bead with core
2 - Side wall
3 - Side wall reinforcement
4 - Rim with extended hump (EH2) on both sides - required when tyres with emergency running characteristics are to be used.
  N44-10343

Tyres with emergency running characteristics SST/runflat (self-supporting tyre) > < Run flat tyres (tyres with emergency running characteristics)