Suspension - Shock Absorber Leak Assessment Guide
40 Shock absorber leaks: assessment aid
40 10 04
2018194/4
April 1, 2010.
Supersedes Technical Service Bulletin Group 40 number 09-04 dated June 17, 2009 for reasons listed below.
Affected Vehicles
Condition
137
One or several shock absorbers have an oil coating.
Technical Background
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Production Solution
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Service
This information is designed to help you assess whether a shock absorber is leaking.
Leaking shock absorbers
A leaking shock absorber is characterized by a wet film of oil running down the pipe. This needs to be replaced.
Shock absorbers with oil marks
138
A light film of dried oil or oil marks on the pipe beneath the dust guard are not clear indication of a leaking shock. These are caused by residues
from filling up the shock during production or slight "condensation" in the seal area. This small amount of oil is for lubrication and reduces the wear
of the seal.
Tip: This does not affect the shock absorber. No repair is necessary.
Tip: For further information see the repair manual under "Shock absorbers, checking."
Warranty
This TSB is informational only and not applicable to any Audi warranty.
Additional Information
All parts and service references provided in this TSB are subject to change and/or removal. Always check with your Parts Department and service
manuals for the latest information.
