Volkswagen Polo Service & Repair Manual: Run-Flat Tire, Overview of a PAX Tire
| PAX tires involve specially developed system that exhibits
the following differences in comparison to conventional tires: |
| Pax Tires with Supporting Ring |
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-II- PAX tires without air |
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The tire is anchored to a special rim that prevents it from
sliding off when pressure is lost. The rubber supporting ring
ensures stability in emergency operation. |
| The inner and outer bead diameter are different sizes. This
makes it possible to place the tire in a supporting ring. |
| The tire is anchored to the rim differently. |
| In this way, the tire height could be reduced considerably.
That was possible because the area near the bead could be
considerably smaller due to the special connection between the
tire and rim. |
| The tire bead is formed so that it can engage in the rim
seat. Therefore, it remains firmly in the seat when pressure is
lost. |
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| Standard Tire, Beat Area Construction |
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| PAX Tire, Bead Area Construction |
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| The secure seating of the tire in the rim is ensured in all
driving situations due to the type of construction. |
| A wedge-shaped component of the tire is pressed between the
bead bundle and rim when loaded. This happens independently of
the pressure in the tire. |
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| In contract to conventional tires, tires with emergency
running characteristics (PAX) exhibit differences in regard to
dimensions and designations. |
| Therefore, PAX tires can only be mounted on special rims (PAX). |
| 1 - |
Width in mm: the tire width from flank to flank on standard
rim (corresponds to width specification on standard tire). |
| 2 - |
Outer circumference in mm: maximum diameter of a new tire- |
| 3 - |
Designated diameter in millimeters on standard rim seat |
| 4 - |
Smaller bead diameter in millimeters: rim seat on outer side |
| 5 - |
Larger bead diameter in millimeters: rim seat on inner side |
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The vehicle can be equipped with run-flat tires as an
option.
The Seal Inside technology is a system that allows the
vehicle to continue ...
Other materials:
Wheel, Mounting, Audi Assembly Instructions
Vehicles with Tire Pressure Monitoring Sensor.
If wheels are changed (for example, change from summer to
winter tires), wheel electronics send data as soon as speed of
new wheels exceeds 25 km/h (15.53 mph). The control module
automatica ...
Emergency Wheels
Spare Wheel Notes
If Necessary, Explain to the Customer the Information About
Tires and Refer the Customer to the Owner's Manual.
The following notes listed also apply to spare wheels that
are marked wi ...
SAFELOCK mechanism
First read and observe the introductory information
and safety warnings
Depending on the vehicle equipment level, the vehicle may have a SAFELOCK mechanism
and an anti-theft alarm .
Function
Action
Locking the vehicle and activating the SAFELOCK mechanis ...
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Run-Flat Tire, Seal Inside-Technology