VW Polo manuals

Volkswagen Polo Service & Repair Manual: Foreign Object Damage

Driving over hard, pointed objects like nails, screws and the like can pierce the tire.
This always leads to tire damage.
   
Damage from Imbedded Foreign Bodies
Frequently, the foreign object -marking- is so securely embedded in the tire that it will not free itself even at higher speeds. Due to this, it can act as a plug and seal the tire relatively well. The result is gradual loss of pressure which the driver does not notice immediately but which can lead to sudden and complete tire failure.
  Note
No repair should be attempted on steel belted tires of which the structure has been punctured by a foreign body.
 

Foreign Object Damage

Tire Sidewall Swelling
A swelling in the flank of the tire indicates that the substructure of the carcass has been damaged.     Typical ...

Disintegrated Tread
Tires with Torn-Out Tread Such damage usually develops over a longer period of time. If an already damaged tire is exposed to high stress, the ...

Other materials:

Compressor Types, Checking Pressures
  Note Check cooling performance. The A/C system is functioning correctly when the air flowing from the instrument panel vents has a temperature of 70C or lower. Setting on Climatronic “LO”. ...

Introduction
This chapter contains information on the following subjects:  → An economic driving style   → Driving in a fuel-efficient manner Fuel consumption, environmental impact and wear on the engine, brakes and tyres depend largely on three factors: Personal driving style. ...

Important Information when Working with the A/C Service Station
  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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