Volkswagen Polo Service & Repair 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. |
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| 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 ...
Other materials:
Overview of the driver side
Fig. 5 Overview of the driver side
(left-hand drive vehicles)
Fig. 6 Overview of the driver side
(right-hand drive vehicles)
Key for and :
Vent
,
Lever for:
Main beam headlights
Headlight flasher
Turn signal
Parking lig ...
Stowage compartment in the front passenger footwell
Fig. 99 In the front passenger footwell:
stowage compartment for high-visibility waistcoat
First read and observe the introductory information
and safety warnings
Opening and closing the high-visibility waistcoat stowage compartment
To open, grip the handle (arrow) and pull the cover out of ...
Support Mode with Battery Charger -VAS5903
General Information
The support mode provides the vehicle electrical system with
voltage when the battery is removed or disconnected.
For more information. Refer to Battery Charger -VAS5903-
Operating Instructions.
...
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Tires, Rolling Noises, General Information