For 1990-2009 cars

In the manufacturing process of the brake rotor:

• | Tolerances of the braking surfaces are checked for flatness

• | Thickness variation is observed

• | Lateral runout is closely maintained

| The maintenance of close tolerances on the shape of the braking surfaces is necessary to prevent brake roughness or pulsation.

• | In addition to these tolerances the surface finish must be maintained to a specified texture. The control of the braking surface finish is necessary to avoid the following braking concerns:

- | Hard pedal-apply

- | Excessive brake fade

- | Pulls

- | Erratic performance

- | Premature lining wear

• | Light scoring of the rotor surfaces not exceeding 1.5 mm (0.060 in) in depth is not detrimental to brake operation and may result from normal use.