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:
Decorative Trims, Replacing, Bonded Decorative Trims
Special tools and workshop equipment
required
Cartridge Gun -VAG1628-
Trim Removal Wedge -3409-
Wiring Harness Repair Set - Hot Air Blower -VAS1978/14A-
Materials ...
Declaration of conformity
First read and observe the introductory information
and safety warningsThe individual manufacturer declares herewith that the
following products conform, at the time of vehicle production, with the basic requirements
and other relevant laws and regulations, including FCC Part 15.19, FCC Part 1 ...
Indicator lamp
First read and observe the introductory information
and safety warnings
The central locking system indicator lamp is located in the driver door .
Depending on the vehicle equipment level, the vehicle may have an anti-theft
alarm and a SAFELOCK mechanism .
After locking ...
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Tires, Rolling Noises, General Information