A4 Quattro Wagon V6-3.2L (BKH) (2005)
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PROM - Programmable Read Only Memory: All Technical Service Bulletins
Engine Controls - Engine Runs Rough/Stumbles/Hesitates
24 08 57
2010890/8
November 19, 2008. Supersedes Technical Service Bulletin Group 24 number 08-23 dated May 14, 2008 for reasons listed below.
Vehicle Information
"01 Cold engine runs rough or stumbles; warm engine may stall when engaging gear and vehicle is stationary"
Condition
The customer may report:
-
Engine may idle rough after a cold start.
-
Engine may stumble or hesitate at slow initial acceleration after a cold start and under certain weather conditions. Condition will not exist with
warm engine.
-
Engine may attempt to stall at idle when transmission is shifted from Neutral or Park to Drive or Reverse when coolant temperature is above 176
degrees (80 degrees) and the vehicle is stationary.
No diagnostic trouble codes (DTC) are associated with this condition.
Technical Background
Production Solution
New software in the Engine Control Module resolved the problem.
Service
1. Check the ECM to ensure it has not been tuned.
NOTE:
Any Update Programming procedure (flash) may overwrite any tuned ECM or TCM programming. A tuned ECM or TCM is described as any
ECM or TCM altered so as to perform outside the normal parameters and specifications approved by Audi of America, Inc.
Current Tuned ECM or TCM Requirements
If you encounter a vehicle with a tuned ECM or TCM, your dealership must do the following before performing any procedure that updates ECM
or TCM programming:
a. Notify the owner that their ECM or TCM was found to have been tuned.
b. Notify the owner that any damage caused by the tuning of the ECM or TCM (including any adverse emissions consequences) will not be
covered by Audi of America, Inc. warranties.
c. Obtain the owner's written consent (see attached Control Module Tuning form) for any requested repair - under warranty or outside warranty -
that requires flashing that will automatically overwrite the tuned program.
