VW Golf manuals

Volkswagen Golf Service & Repair Manual: Flat spots (from locking wheels)

Flat spots can result from an extreme brake application which causes the wheels to lock, so that the rubber is worn off at the contact patch between the tread and the road surface.
As the tyres slide over the road surface, friction generates heat, which also reduces the wear resistance of the tread material.
Not even a highly wear-resistant tread compound can prevent the flat spots caused by violent braking.
Even ABS-controlled brake systems cannot prevent brief locking of the wheels, and thus, minor flat spots.
The degree of such wear depends largely on the vehicle speed, the road surface and the load placed on the wheel. The following examples should make this clear.
If a vehicle is braked to a standstill on a dry surface with the wheels locked, the amount of rubber worn from the tyre will cover an area the size of a postcard and will have a thickness of:
up to 2.0 mm from a speed of 57 km/h (23.8 m braking distance)
up to 3.3 mm from a speed of 75 km/h (41.8 m braking distance)
up to 4.8 mm from a speed of 92 km/h (71.6 m braking distance)
   
Flat spots in tread
Tyres with such damage must no longer be used and must be renewed.
 

Flat spots (from locking wheels)

General notes on tyre noise
Tyre noise that can be heard by the human ear is caused by vibrations which are transmitted by the air from the source of the sound to our ears. ...

Vehicle pulls to one side
...

Other materials:

Removing and installing fuse holder B -SB-
Removing –  With ignition switched off, disconnect earth cable from battery → Chapter.     –  Press release tabs -arrow- and detach cover -1- ...

Silicone remover
Designation: Aqueous silicone remover -LSW 019 000 A5- Silicone remover -LVM 020 000 A5- Slow-drying silicone remover -LVM 020 100 A5- Issued 02.2012 ...

Removing and installing starter, vehicle with manual gearbox
Special tools and workshop equipment required     Torque wrench -V.A.G 1331-   Torque wrench -V.A.G 1332-   ...

© 2016-2019 Copyright www.vwgolf.org