S4 Quattro Sedan V6-3.0L SC (CCBA) (2010)
Clutch Disc: Technical Service Bulletins
M/T - Clutch Plate Diagnostic Guidelines
30 Clutch plate diagnosis guidelines
30 09 02
2019850/2
September 15, 2009.
Supersedes Technical Service Bulletin Group 30 number 09-01 dated January 23, 2009 for reasons listed below.
Affected Vehicles
Condition
REVISION HISTORY
^ Clutch not operating properly.
^ Clutch smells burnt.
^ Clutch pedal does not fully return to starting position.
Technical Background
The following conditions can lead to clutch damage:
^ Incorrect shifting.
^ At a high vehicle speed, the clutch is pressed and an incorrect lower gear is selected. The gearbox drives the clutch plate past its designed RPM range
(overspeed condition) and centrifugal force damages the clutch. If the clutch was engaged during this incorrect gear engagement, damage would also
occur to the engine.
^ The revolutions of clutch plate and engine input shaft differ too much.
^ Excessive slipping of the clutch.
This leads to the overheating of the clutch plate and removal of the lining.
Production Solution
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Service
Try to reproduce the customer complaint so that it can be clearly assigned to this TSB.
Use the illustrations below to assess whether warranty damage is involved.