Volkswagen Touran Service Manual: Wear Spots
| Wear spots are caused by a hard stop with locked wheels
whereby the rubber compound is abraded from the contact patch. |
| When the tires slide across the road surface, frictional
heat is generated which reduces the abrasion resistance on the
tread compound. |
| Even the most abrasion-resistant tread compound cannot
prevent wear spots which can occur during extreme braking. |
| Even ABS cannot completely prevent brief locking and the
resulting slightly flat spots. |
| The degree of abrasion is primarily dependent on the vehicle
speed, road surface and tire load. For clarification see the
following examples. |
| If a vehicle with locked front wheels is decelerated until
it comes to a stop, the abrasion of rubber on the post card
sized contact patch is approximately |
| from 57 km/h (35.41 mph) = 23.8 m braking distance, up to
2.0 mm, |
| from 75 km/h (46.60 mph) = 41.8 m braking distance, up to
3.3 mm, |
| from 92 km/h (57.16 mph) = 71.6 m braking distance, up to
4.8 mm. |
|
|
|
| Tires with this type of damage cannot be used and must be
replaced. |
|
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Rolling noise perceived by the human ear is caused by
vibrations transmitted from the noise source to the ear via the
air.
Here we are interest ...
General Information
Perform a road test to determine if a vehicle pulls to one
side and if so, when and to which side. If the vehicle pulls to
one side. Refer to
...
Other materials:
Stowage compartments in the variable luggage compartment floor
Fig. 118 Variable luggage
compartment floor: stowage area at the front ① and rear ②
Fig. 119 Variable luggage
compartment floor: securing with the support rod
First read and observe the introductory information
and safety warnings
Function
Ac ...
Childproof lock
Fig. 26 In the left rear door:
childproof lock Ⓐ switched off, Ⓑ switched on
Fig. 27 In the right rear
door: childproof lock Ⓐ switched off, Ⓑ switched on
First read and observe the introductory information
and safety warnings The childproof lock prevents the ...
Refrigerant in A/C Service station Container, Filling
Caution
If it is suspected that chemicals were added to the
refrigerant circuit to seal leaks, do not connect the
A/C service station and do not extract the refrigerant.
...
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Tires, Rolling Noises, General Information
Vehicle Pulls to One Side