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General Procedure - Noises, Identifying: Checklist

The checklist or protocol for finding noises is an aid for the workshop to identify and locate noises. This is very helpful for recording data. The technician fills out the first section with the typical user of the vehicle to learn more about the noise in question ahead of time.

Checklist Description (Guide)

The most important checklist fields are described in this article.

Print the check list. Refer to CHECKLIST .

Checklist Description (guide), Part I 

GWWE00-11338Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

A - 

Vehicle data. Refer to  CHECKLIST - List Item: Item no.: chronological list of accepted cases in the workshop.1) or  CHECKLIST - List Item: Retrofittings: when retrofittings occur after manufacture2)

B - 

Vehicle inspection. Refer to  CHECKLIST - List Item: Dynamic or static test, during which the applicable noise could be detected3) ,  CHECKLIST - List Item: Can the customer complaint be confirmed?4) or  CHECKLIST - List Item: The technician confirms that they could clearly detect and identify the noise questioned by the customer, and that it is currently being considered unusual.5)

C - 

When the noise occurs. Refer to  CHECKLIST - List Item: The mileage at which the noise was detected.6) ,  CHECKLIST - List Item: If the noise is gradually occurring, is short or is already constantly occurring.7) or  CHECKLIST - List Item: If the noise occurred after a collision or a procedure, such as mechanical repairs, body repair, installing devices, adaptations (tuning), etc.8)

D - 

Possible damage. Refer to  CHECKLIST - List Item: Possible damage or impairments related to the noise, even if the customer is not aware of them. Perform a vehicle inspection to find these damages or impairments, since they could offer helpful information for the diagnosis.9)

E - 

Locating diagrams. Refer to  CHECKLIST - List Item: This diagram is used to mark the area(s) where the noise is believed to occur. Different sections can be marked.10)

F - 

Noise level. Refer to  CHECKLIST - List Item: Indicate the decibel if a sound intensity meter is available.11) or  CHECKLIST - List Item: In the vehicle interior with all of the doors and windows closed, mark one of the applicable options - high, medium or low level (volume).12)

G - 

Type of tone. Refer to  CHECKLIST - List Item: The High, Medium, or Low field is marked based on the type of tone.13) or  CHECKLIST - List Item: Multiple fields can be marked if the tone lies between two of the specifications.14)

H - 

Duration. Refer to  CHECKLIST - List Item: The corresponding field is marked based on the duration.15) or  CHECKLIST - List Item: Multiple fields can be marked if the tone lies between two of the specifications.16)

I - 

Noise regularity. Refer to  CHECKLIST - List Item: Intermittent, if it is a series of noises or isolated, if it is only one noise.17)

J - 

Noise type descriptions. Refer to  CHECKLIST - List Item: Mark the label that is most similar to the noise.18) or  CHECKLIST - List Item: Multiple fields can be marked if the noise is similar to multiple sounds.19)

K - 

Noise nuance. Refer to  CHECKLIST - List Item: Mark one or more of the nuances that the primary sound makes or just the accompanying, secondary sound.20)

  1. Item no.: chronological list of accepted cases in the workshop.
  1. Retrofittings: when retrofittings occur after manufacture
  1. Dynamic or static test, during which the applicable noise could be detected
  1. Can the customer complaint be confirmed?
  1. The technician confirms that they could clearly detect and identify the noise questioned by the customer, and that it is currently being considered unusual.
  1. The mileage at which the noise was detected.
  1. If the noise is gradually occurring, is short or is already constantly occurring.
  1. If the noise occurred after a collision or a procedure, such as mechanical repairs, body repair, installing devices, adaptations (tuning), etc.
  1. Possible damage or impairments related to the noise, even if the customer is not aware of them. Perform a vehicle inspection to find these damages or impairments, since they could offer helpful information for the diagnosis.
  1. This diagram is used to mark the area(s) where the noise is believed to occur. Different sections can be marked.
  1. Indicate the decibel if a sound intensity meter is available.
  1. In the vehicle interior with all of the doors and windows closed, mark one of the applicable options - high, medium or low level (volume).
  1. The High, Medium, or Low field is marked based on the type of tone.
  1. Multiple fields can be marked if the tone lies between two of the specifications.
  1. The corresponding field is marked based on the duration.
  1. Multiple fields can be marked if the tone lies between two of the specifications.
  1. Intermittent, if it is a series of noises or isolated, if it is only one noise.
  1. Mark the label that is most similar to the noise.
  1. Multiple fields can be marked if the noise is similar to multiple sounds.
  1. Mark one or more of the nuances that the primary sound makes or just the accompanying, secondary sound.

Checklist Description (Guide), Part II 

GWWE00-11339Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

L - 

Under what circumstances does the noise occur (simultaneous events). Refer to  CHECKLIST - List Item: Start by marking if the noise is heard constantly, frequently, rarely or very rarely.21) or  CHECKLIST - List Item: Then mark the circumstance or circumstances, under which the noise occurs. In case the corresponding circumstance is not listed, note this in the "Other circumstances" field and describe.22)

M - 

Vehicle speed when the noise occurs and the transmission type. Refer to  CHECKLIST - List Item: Specification of the transmission type installed, automatic or manual transmission.23) or  CHECKLIST - List Item: Mark the gear or gears in which the noise is detected.24)

N - 

Vehicle speed. Refer to  CHECKLIST - List Item: Specify the speed range at which the noise occurs by marking multiple fields for the start and end point.25)

O - 

Engine speed (RPM). Refer to  CHECKLIST - List Item: Specify the engine speed range at which the noise occurs by marking multiple fields for the start and end point.26)

P - 

Engine operating conditions. Refer to  CHECKLIST - List Item: Mark the engine operating condition(s) at which the noise is detected.27)

Q - 

External conditions. Refer to  CHECKLIST - List Item: Mark the climate condition(s) in which the noise is detected.28)

R - 

Ambient temperature. Refer to  CHECKLIST - List Item: Mark the ambient temperature(s) at which the noise occurs.29)

S - 

Road quality. Refer to  CHECKLIST - List Item: Mark the road condition(s) at which the noise occurs.30)

T - 

At which seat can the noise be heard the loudest. Refer to  CHECKLIST - List Item: Mark the seat at which the noise can be the most clearly heard.31)

U - 

Can the cause of the noise be located. Refer to  CHECKLIST - List Item: The technician will give their preliminary diagnosis after filling out the list.32) or  CHECKLIST - List Item: If none of the fields apply, mark "Other" and describe in "Which?".33)

V - 

Notes. Refer to  CHECKLIST - List Item: To record data accurately, it is necessary that the typical vehicle driver is present when filling out the first section of the checklist.34) ,  CHECKLIST - List Item: Recording data with the driver can be done by the technician or the service manager. The technician who will be performing the procedures on the vehicle will complete the checklist.35) ,  CHECKLIST - List Item: To obtain specific information, the technician must leave any applicable questions open-ended, so that the noise can be diagnosed correctly and without issue.36) ,  CHECKLIST - List Item: Likewise, the technician must explain to the customer the reasons for the questions previously asked and then inform them of any procedures to be conducted on the vehicle, so that they can give their consent.37) or  CHECKLIST - List Item: By using the checklist correctly, the technician can determine the different operating conditions of the vehicle, under which the noise could be occurring. To determine the area or component that is creating the noise, the vehicle history should be noted, the acoustic properties of the noise should be analyzed and the order previously specified should be followed.38)

  1. Start by marking if the noise is heard constantly, frequently, rarely or very rarely.
  1. Then mark the circumstance or circumstances, under which the noise occurs. In case the corresponding circumstance is not listed, note this in the "Other circumstances" field and describe.
  1. Specification of the transmission type installed, automatic or manual transmission.
  1. Mark the gear or gears in which the noise is detected.
  1. Specify the speed range at which the noise occurs by marking multiple fields for the start and end point.
  1. Specify the engine speed range at which the noise occurs by marking multiple fields for the start and end point.
  1. Mark the engine operating condition(s) at which the noise is detected.
  1. Mark the climate condition(s) in which the noise is detected.
  1. Mark the ambient temperature(s) at which the noise occurs.
  1. Mark the road condition(s) at which the noise occurs.
  1. Mark the seat at which the noise can be the most clearly heard.
  1. The technician will give their preliminary diagnosis after filling out the list.
  1. If none of the fields apply, mark "Other" and describe in "Which?".
  1. To record data accurately, it is necessary that the typical vehicle driver is present when filling out the first section of the checklist.
  1. Recording data with the driver can be done by the technician or the service manager. The technician who will be performing the procedures on the vehicle will complete the checklist.
  1. To obtain specific information, the technician must leave any applicable questions open-ended, so that the noise can be diagnosed correctly and without issue.
  1. Likewise, the technician must explain to the customer the reasons for the questions previously asked and then inform them of any procedures to be conducted on the vehicle, so that they can give their consent.
  1. By using the checklist correctly, the technician can determine the different operating conditions of the vehicle, under which the noise could be occurring. To determine the area or component that is creating the noise, the vehicle history should be noted, the acoustic properties of the noise should be analyzed and the order previously specified should be followed.
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