Alfa Romeo 166 Specifications download pdf (Page 147)

146

A - Normal pressure: tread uniform-

ly worn.

A correct pressure will ensure a longer

life for your tyre and improve perfor-

mance as the tread will then be working

along the entire width of the tread and

wear will be more uniform.

These conditions also lead to:

– better road holding of the vehicle

– easier and more precise steering

– reduced fuel consumption due to a

lower resistance against the rolling of the

tyre.

B - Insufficient pressure: tread

worn more along the edge.

Low tyre pressure will cause irregular

wearing of the tread (greater along the

sides) and cause the tyre to overheat

which could lead to parts of the tyre

breaking off and cause damage to the

shell of the tyre itself.

This type of damage could lead to sud-

den loss of pressure or cause the tyre to

burst.

C - Excessive pressure: tread worn

more towards the centre.

Overinflating the tyres leads to:

– irregular wearing of the tread, con-

centrated more towards the centre of the

tread

– a reduction in the level of comfort

– a greater vulnerability of the tyre to

knocks

IMPORTANT When the vehicle is be-

ing used the pressure increases naturally.

In exceptional cases when checking tyre

pressure when hot, do not reduce the

pressure.

Wheel balancing

Each wheel together with its tyre is bal-

anced, both satirically and dynamically, in

the factory. When the tyres are replaced

the wheels must be rebalanced to prevent

vehicle instability, wearing of the compo-

nents of the steering system and irregular

tyre wear.

When balancing wheels

made of light alloy only

original Alfa Romeo

counterweights should be used.

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