General Procedure

The following steps are to be followed in chronological order when identifying a noise:

To correctly identify a noise and the reason for the complaint, the checklist should always be filled out as much as possible with the typical vehicle user. Begin with the origin of the noise, the type, the time when it occurs and a description of the noise.
Pay attention to the Technical Service Bulletin (TSB).
Pay attention to the case examples.
Locate the noise using specific devices.
After diagnosing the noise, fill out the check list completely.

NOTE:

It is very important to note the surrounding conditions at the time when the noise occurs.