Ti, 1373 Checking Belt TENSIONER In The Event Of A Complaint About "Leaks" (6/14)
Model year
From 2010
Revisions:
Revision 1 - June 27, 2018
Changes/additions:
Reference to required photographic documentation added under Information.
Model Line:
Panamera (970)
Cayenne (92A)
Macan (95B)
Concerns:
Belt tensioner
Information:
Checking belt tensioner in the event of a complaint about "leaks" before carrying out any other work.
Information
Our analyses have shown that traces of oil on the hydraulic belt tensioner are only very rarely caused by a leaking belt tensioner.
Given this, it is important to check where the oil leak/oil contamination is coming from before replacing the belt tensioner:
- Clean the belt tensioner and spray it with a suitable leak-locating agent/leak detecting spray (commercially available). Cover adjacent areas around the belt tensioner with a cloth. Spray leak detecting spray only on the belt tensioner. Never spray leak detecting spray on the drive belt or deflection and tensioning rollers.
- When cleaning the belt tensioner, check for oil contamination on other components near the drive belt. Oil that is leaking from another component, for example, can be distributed/transferred to the belt tensioner via the drive belt.
- Then perform a test drive.
- After the test drive, check the belt tensioner for oil leaks and assess any traces of oil that are visible.
Information
For repair scopes , which are invoiced using WWS , the repairs must always be documented in PQIS by taking photos:
- before cleaning /before carrying out any other work and
- after cleaning/test-driving the vehicle and attaching them to the job.
For further information about the required documentation, see >WM 0X00IN ELIMINATING NOISE SYMPTOMS - OVERVIEW OF MATERIALS FOR ELIMINATING DISTURBING NOISES (CAYENNE TIP, CAYENNE MAN, CAYENNE S, CAYENNE TURBO, CAYENNE GTS, CAYENNE S HYBRID, CAYENNE TURBO S, CAYENNE DIESEL, CAYENNE S DIESEL, CAYENNE TIP (3.0)) 0X0000 Documentation requirements particularly for repairing visually or acoustically verifiable complaints in warranty and goodwill cases (14/16)
Assessment:
"Oil sweating" around the boot bleed point (cut-out):
- Traces of oil are visible,
- the amount of oil emerging does not form drops of oil and there is no oil visible on the underbody protection or on the ground.
=> No action is required in this case.
"Drops of oil":
- Oil is clearly visible,
- the oil is clearly coming from the belt tensioner,
- the amount of oil emerging forms a trail with drops of oil and
- oil is also visible on the underbody protection and on the ground.
=> The belt tensioner must be replaced in this case.
Noises:
Tip for analyzing noises:
In the event of a complaint about noise, if the noise is coming from the belt tensioner, please proceed as follows:
=> Create a relevant sound file of the noise and attach it to the PQIS job.
References: