Engine Controls - Hesitation On Acceleration/No DTC's
01 Light engine hesitation under acceleration at steady throttle application at 2500 rpm and 3800 rpm24 10 11
2021227/2
March 25, 2010.
Supersedes Technical Service Bulletin Group 24 number 09-20 dated September 30, 2009 for reasons listed below.
Affected Vehicles
Condition
^ Light engine hesitation or shudder when accelerating in different rpm ranges.
If accelerated with steady throttle application, the changing of the load flaps can only be felt at about 2,500
rpm, and the Audi Valve Lift System shifts at about 3,800 rpm.
^ No DTCs in the engine control module.
^ Will not result in engine stall.
Technical Background
Incorrect software of the engine control module.
Production Solution
Optimized engine software from MY 2010.
Service
1. Follow all instructions in the attached TSB 2011732 00 Software Version Management (SVM), operating instructions.
2. Update the engine control module using the SVM action code as listed in the table above if necessary.
Warranty
Required Parts and Tools
VAS Tester
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.