Update Engine Control Module To Correct Engine Stumble (GROUP 01, NO. 08-25)

Publication date: 2008-12-08
Reference number: GROUP 01, NO. 08-25
Supersedes refnos: 2010244, GROUP 01, NO. 04-07

UPDATE ENGINE CONTROL MODULE TO CORRECT ENGINE STUMBLE

TECHNICAL SERVICE BULLETIN

Reference Number(s): GROUP 01, NO. 08-25 (2010244/3), Date of Issue: December 8, 2008

AUDI:	TT with 1.8T (Engine Codes AWP & BEA), 2003
GROUP:	01 - On-Board Diagnostic

Superceded Bulletin(s): GROUP 01, NO. 04-07, Date of Issue: September 1, 2004

SERVICE INFORMATION

01 08 25 2010244/3 December 8, 2008. Supersedes Technical Service Bulletin Group 01 number 04-07 dated September 1, 2004

CONDITION

After cold start the engine runs rough. Vehicle may stumble on initial acceleration. Engine may stall at idle when transmission is shifted from Neutral/Park to Drive or Reverse.

Condition usually lasts for less than 30 seconds after engine start. Afterwards the vehicle starts and runs without any of these complaints.

SERVICE

CAUTION: When performing the reflash procedure, ALL DTCs for all systems are erased.

DTCs linked to Guided Fault Finding function tests will be lost. Therefore, always address stored DTCs for Customer concerns unrelated to the reflash procedure first.

If the diagnosis of the engine does not reveal any faulty component, Reprogramming of the ECM will be necessary.

If ECM Software Level and Part Nos. are:

For BEA engine, 0005 = 8N0 906 018 BB.
For AWP engine, 0010= 8N0 906 018 CP.

Update Programming (Flashing) is not necessary. Do not complete this technical bulletin.

CAUTION: The following "Update - Programming" (flashing) process may overwrite any "TUNED" ECM programming.

A "TUNED" ECM is described as any ECM altered so as to perform outside the normal parameters and specifications approved by Volkswagen of America, Inc..

If you encounter a vehicle with a "Tuned" ECM, prior to performing the "Update - Programming" (flashing) procedure:

Your Dealership should place the vehicle owner on notice in writing, that their ECM was found to have been tuned, and that any damage caused by the tuning of the ECM (including any adverse emissions consequences) will not be covered by Volkswagen of America, Inc. warranties.
For any repair requested by the owner under warranty or outside warranty that requires flashing, which will automatically wipe out the "Tuning" program, your Dealership should advise the owner of the above and get Owner's written consent (see attached Control Module Tuning form) to the flashing procedure.

TOOL REQUIREMENTS

VAS 5051 or 5052 (with Basis CD V.06.05 and the Brand CD V.06.30 or higher) with old diagnosis logs erased prior to start.
"Update - Programming" (flashing) CD 8E0 906 961E.

NOTE: Additional copies of the "Update Programming" CD (Literature Number 8E0 906 961E) may be ordered from the Volkswagen Technical Literature Ordering Center at www.audi.ddsltd.com, or by calling 1-800-544-8021 from 8:00 a.m. to 8:00 p.m. EST Monday through Friday. This number can be dialed in both the United States and Canada.

VEHICLE REQUIREMENTS

Battery MUST have minimum no-load charge of 12.5V (failure to maintain voltage during update process can lead to ECM failure) (it is advised to use an approved battery charger to maintain battery voltage).
VAS 5051: connected to vehicle and to 110V AC Power supply at all times during procedure.
VAS 5052: connected to vehicle with battery voltage requirements met.
Any appliances with high electromagnetic radiation (i.e. mobile phones) switched OFF.
Vehicle electrical consumers are off (i.e. radio, lights, A/C, etc.).

CAUTION: Non-observance of the following points may lead to ECM failure!
VAS 5051 or 5052 must always be connected to the approved power supply at the approved voltages. Under no circumstances should the power supply be interrupted or the diagnostic connector unplugged during the flash procedure.

Any appliances with high electromagnetic radiation (i.e. mobile phones) must be switched OFF.

CAUTION: Do not use the VAS 6017A Adaptor when doing the update programming (flashing). Control module can be damaged. Adaptor is for checking control modules only.

"UPDATE - PROGRAMMING" (FLASHING) PROCEDURE, CHECKING FOR UPDATE MATCH

Switch ignition ON.
Switch VAS 5051/5052 ON and insert flash CD into CD drive as soon as start screen appears.

Fig 1: VAS 5051 Start Screen

NOTE: You must return to the start screen before starting a new (flashing) session, otherwise the flashing CD will not be recognized by the tester.
Select "Vehicle Self Diagnosis" mode.
Select vehicle system "01-Engine electronics".
- Program checks software level.

If software level of ECM MATCHES level included in Flashing CD:

"Update - Programming" (arrow) will not appear.

Fig 2: VAS 5051 Screen - Diagnosis Function

NOTE: The "Update - Programming" function is only available when the inserted flashing CD level is newer than current vehicle ECM level.

If "Update - Programming" does not appear:

Programming (flashing) ECM cannot be performed, continue to diagnose condition.

If ECM software level is older than the level indicated on Flashing CD:

"Update - Programming" (arrow) appears.

Select Diagnosis function 06 "End output".

Fig 3: VAS 5051 Screen - End Output

PRIOR TO PERFORMING PROCEDURE TO "UPDATE - PROGRAMMING" (FLASH) THE ECM

Select Diagnosis function 00 "Collection services".
Select "Check DTC memory - complete system". which will interrogate all fault memories.

Fig 4: VAS 5051 Screen - Check DTC Memory
- When DTC interrogation is complete "Function Complete" will be displayed.
  CAUTION: When performing the reflash procedure, ALL DTCs for all systems are erased.
  DTCs linked to Guided Fault Finding function tests will be lost. Therefore, always address stored DTCs for Customer concerns unrelated to the reflash procedure first.
Select backward arrow < on navigation bar to return to vehicle systems screen.
Select vehicle system "01-Engine electronics".

"UPDATE - PROGRAMMING" (FLASHING), PERFORMING

Select "Update - Programming" option at bottom of screen (arrow).

Fig 5: VAS 5051 Screen - Select Update - Programming

After selecting "Update - Programming" function, new program version as listed below will install:

Fig 6: VAS 5051 Screen - Warning

0005 for ECM Part No: 8N0 906 018 BB (BEA engine).
0010 for ECM Part No: 8N0 906 018 CP (AWP engine).
Approximate timing for update is shown on the VAS 5051/5052 screen.

By selecting the > button, the programming procedure begins.
CAUTION: Once "Update - Programming" function has been started, switching ignition OFF or disconnecting the diagnostic connector may damage the ECM.

Similar screen appears:

Fig 7: VAS 5051 Screen - Data Transfer

The previous data in the ECM is erased and the new data is being transferred to the module from the flash CD.

NOTE: Please do not carry out any other work on the vehicle during "Update - Programming". Process could be interrupted.

NOTE: If, during the "Update - Programming", a fault message is displayed:

Fig 8: VAS 5051 Screen - Fault Message
Confirm that VAS 5051 or VAS 5052 diagnostic tool power supply is adequate and that ALL appliances with high electromagnetic radiation (i.e. mobile phones) are switched OFF.
The "Update - Programming" (flashing) process must then be started from the beginning using the "Repeat" button (arrow). DO NOT use the "Cancel" button.
IMPORTANT: On NO occasion should the "Cancel" button be selected.

NOTE: Depending on Basis CD installed in Diagnostic tool, ignition key cycling (bottom half of page) may display before software level display screen (top half of page).

Once "Update - Programming" (flashing) is complete:

Similar screen appears.

Fig 9: VAS 5051 Screen - ECM Part Number And Old Software Level
ECM Part Number and old software level is still displayed at (arrows).
NOTE: New software level is not displayed until process is complete and fault memories have been erased.

Select the "Print", then "Screen" button.
- VAS 5051 will print to printer immediately.
- VAS 5052 will hold the print until process is complete and then you may take the tester to the printer for printing the screen.
Attach print to vehicle Repair Order.
Select forward arrow > on navigation bar.

Once "Update - Programming" (flashing) is complete, the control module must be re-initialized.

The tester requests you to switch the ignition OFF.

Fig 10: VAS 5051 Screen - Switch OFF Ignition

Switch ignition OFF.
- The tester requests you to switch the ignition ON.
Wait 20 seconds and switch ignition ON.

After switching ignition ON, the ECM has been re-initialized, however, fault memories must now be erased.

FAULT MEMORIES, ERASING AFTER "UPDATE - PROGRAMMING" (FLASHING)

Select the "Continue button"

Due to the CAN bus system, fault messages will be stored in various Control Modules during programming.

To erase ALL fault memories:

Fig 11: VAS 5051 Screen - Erase Fault Memories

Select forward arrow > on navigation bar.

Once fault memories have been erased:

Similar screen appears.

Fig 12: VAS 5051 Screen - Function Ended
Old ECM Part No. and software level still appear at (arrow).
Function ended appears at bottom of screen.

Finish update of the ECM:

Select backward arrow < on navigation bar.
- Similar screen appears.
- Updated software level "0005" or "0010" (depending on ECM Part No.) will appear at (arrow).
  
  Fig 13: VAS 5051 Screen - Updated Software Level
- Flash CD can now be removed from VAS 5051 or VAS 5052 Diagnostic tool.
Print the ECM screen to verify ECM update software level.
- VAS 5051 will print to printer immediately.
- VAS 5052 will hold the print until process is complete and then you may take the tester to the printer for printing the screen.
Attach print to vehicle Repair Order.
Select "Go to" then select "Exit".
NOTE: It is not generally necessary to encode the ECM following the "update - Programming" (flashing procedure. However, you must set the readiness code.
Set readiness code.
- Use VAS 5051 or VAS 5052 to set readiness code.
  NOTE: If condition still exists after flashing procedure, poor fuel quality may be the cause.
- Premium fuel is required for optimum performance.

WARRANTY INFORMATION

When procedure applies to vehicles within the New Vehicle Limited Warranty:
Claim Type:	W2
* Damage Code:	2470 39 xxx1
Due to the varying complexity of tester software and vehicle systems checked by the tester, actual time may vary, therefore A-Time must be used.
Labor Operation: Includes all operations necessary to complete repair.	24709999 Maximum A-Time allowed 130 TU
Claim Comment: Type "As Per Technical Bulletin A010407" in comment section of Warranty claim.
*) xxx = Vendor code for part

ATTACHMENTS

Fig 14: Control Module Tuning Form