VW Polo manuals

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.
   
Wear Spots in Tread
Tires with this type of damage cannot be used and must be replaced.
 

Wear Spots

Tires, Rolling Noises, General Information
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 ...

Vehicle Pulls to One Side
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Other materials:

Introduction
This chapter contains information on the following subjects:  → Indicator lamp  → Description of the central locking system  → Locking and unlocking the vehicle from the outside  → Locking and unlocking the vehicle from the inside  → SAFELOCK mechanism &nb ...

Rims
First read and observe the introductory information and safety warningsThe design of the wheel bolts is matched to the rims. If different rims are fitted, the correct wheel bolts with the right length and correctly shaped bolt heads must be used. This ensures that wheels are fitted securely ...

Driving in a fuel-efficient manner
Fig. 118 Fuel consumption in litres per 100 km at two different outside temperatures First read and observe the introductory information and safety warnings By adopting an economical driving style and anticipating the traffic situation ahead, you can easily reduce fuel consumption by 10- ...

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