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:
Stowage compartment
on the front passenger side
Fig. 97 Stowage compartment on the front
passenger side
Fig. 98 Open stowage compartment on the
front passenger side
First read and observe the introductory information
and safety warnings
Opening and closing the stowage compartment
To open, pull up the opening lever .
To close ...
Locking and unlocking the vehicle from the outside
Fig. 23 Buttons on the vehicle key
Fig. 24 Mechanical vehicle key
First read and observe the introductory information
and safety warnings
Function
Buttons to be used in the vehicle key
Action to be followed with key in the lock cylinder or
Unlockin ...
Battery Tester Charger Kit -GRX3000VAS- Troubleshooting
Sometimes the display shows the malfunction or the messages
based on the condition.
The following is a list of the most frequent displayed
messages together with suggested solutions.
Note
Refer to the Batt ...
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Tires, Rolling Noises, General Information