7/16/2018

SSM73954 - Brake Disc Friction face corrosion | TOPIx

Reference

SSM73954

Models

Range Rover Velar / L560

Title

Brake Disc Friction face corrosion

Category

Chassis

Last modified

16-Jul-2018 00:00:00

Symptom

301000 Service Brake System

Attachments

Heavy disc corrosion image 2.pdf
Visible disc corrosion image 1.pdf

Content

Issue: Visible corrosion on the vehicle brake disc friction faces which
results in a grinding noise or judder.
Cause: Environmental influences where the vehicle has been stored
or has had little use.
Action: Inspect discs.
For vehicles where visible brake disc surface corrosion is visible as
illustrated (Image 1), and where a grinding noise or vibration may be
present, disc replacement is not necessary. In these cases, the
retailer may advise the customer that the brake disc condition will
improve after a period of normal use, and may return the vehicle to
the customer.
Where requested, an example of a typical drive cycle and brake
deployment may be suggested as follows:
Where safe and reasonable to do so, use the brakes to decelerate
when required by the traffic conditions. Braking from a moderate
speed 50-56 km/h (30-35 mph) is adequate with moderate
deceleration, avoiding the use of engine braking or coasting to slow
down.
In cases where heavy brake disc surface corrosion is visible as
illustrated (Image 2), and where grinding/vibration is present,replace
the discs.

Technicians - Please rate this SSM and provide comments so that
future communications can be improved.
1 = Poor – Basic information provided – The SSM does not help me

https://topix.jaguar.jlrext.com/topix/content/document/view?id=913772

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7/16/2018

SSM73954 - Brake Disc Friction face corrosion | TOPIx

resolve the customer concern.
3 = Average – Adequate information provided – The SSM partially
helps me resolve the customer concern.
5 = Excellent – All required information provided to resolve the
customer concern.

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