After carrying out a road test during diagnosis, a noise is heard from the front identifiable as a whistling/blowing.

See table S015 NOISE WHILST DRIVING

Continue depending on the circumstances in which the noise occurs

1. The noise increases when cornering

2. The noise increases in vertical oscillation conditions

1. Replace the wheel bearing on the side where the problem occurs, positioning it with the magnetic race towards the steering knuckle ring.

Op. 4450C32 ONE FRONT WHEEL HUB BEARING, LH OR RH - REPLACE

This bearing is used by the ABS active sensors to calculate the wheel speed. It should NEVER come into contact with metal shavings because they could alter the gap and prevent a correct reading from the sensor

2. Move on to Step 1

Check for any distortion to the disc heat shield.

Turn the wheel assembly to check for noise due to contact between disc and heat shield.

1. Distortion of the heat shield

2. Contact between heat shield and disc

1. Restore the correct gap and replace the guard if necessary

Op. 3310A59 FRONT BRAKE DISC GUARD (ONE), LEFT OR RIGHT- R.R

2. Replace the brake disc and replace the wheel bearing if the noise persists

Op. 3310A48 FRONT BRAKE DISC (ONE), LEFT OR RIGHT - R.R

Op. 4450C32 ONE FRONT WHEEL HUB BEARING, LH OR RH - REPLACE

Remove the left and/or right wheel.

Op. 4450B02 LEFT FRONT WHEEL - R.R

Op. 4450B04 RIGHT FRONT WHEEL - R.R

Check that the noise is not due to irregular friction between the shock absorber stem and the gasket, checking the condition (scoring/contact marks) of the stem chrome surface.

Lubricate the stem raising the dust cover with a layer of silicon grease.

If the noise persists, replace the shock absorber

Op. 4410A12 FRONT SUSPENSION DAMPER (ONE), LH OR RH - FOR MCPHERSON STRUT SYSTEM - INCLUDES DISMANTLING/REASSEMBLY OF ASSEMBLY AT BENCH - R.R