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Home >> Audi >> 2010 >> S4 Automatic DCT >> Repair and Diagnosis >> External Pages >> Different car >> Section 677 (3.0L - Turbocharger & Supercharger - Engine Code(S): CPNB) >> 21 Turbocharger, Supercharger >> Turbocharger >> Turbocharger Control Module 1 -J724-, REMOVING AND INSTALLING >> Turbocharger Control Module 1 -J724-, REMOVING AND INSTALLING (VEHICLES WITH ENGINE CODE CPNB) >> Removing

Turbocharger Control Module 1 -J724-, REMOVING AND INSTALLING (VEHICLES WITH ENGINE CODE CPNB): Removing

WARNING: This page is about a different car, the 2016 Audi Q5, 2015 Audi Q5, and 2014 Audi Q5. However, it is still accessible from the selected car via links, so may be relevant.

-- Remove the engine cover, refer to ENGINE COVER, REMOVING AND INSTALLING .

-- Remove the cover -1- on the handle.

Fig 1: Identifying Cover, Removal
GWWA27-10221Courtesy of AUDI OF AMERICA, LLC

-- Release the retainer -arrow A- and open the cover -arrow B-.

Fig 2: Opening Terminal Box Cover
GWWA10-10851Courtesy of AUDI OF AMERICA, LLC

-- Turbo E-Positioner Service Kit VAS6395A/1 with the Turbo E-Positioner Service Kit - Wire Set VAS6395/2 to the positive terminal -1- and to the negative terminal -2-.

Fig 3: Connect Battery Charger Red Charging Clamp "+" To The Positive Terminal Clamp
GWWA27-10109Courtesy of AUDI OF AMERICA, LLC

Procedure for E-Positioner Service Kit VAS6395A/1: 

Fig 4: Identifying Electronic Unit (E-Box)
GWWA21-10601Courtesy of AUDI OF AMERICA, LLC

-- Select the software version using the ↑  -5- and ↓  -6- buttons.

-- Press the button -4- to confirm the software version.

NOTE:

In this example, Hella software -1- is selected.

Procedure for Electronic Unit (E-Box) VAS6395/1: 

Fig 5: Identifying VAS 6395/1 Software Version
GWWA21-10171Courtesy of AUDI OF AMERICA, LLC

Check the software version of the Electronic Unit (E-Box) VAS6395/1:

CAUTION:

Danger of damaging the Turbocharger Control Module 1 -J724-.

  • Make sure the correct software is loaded in the Electronic Unit (E-Box) VAS6395/1 before performing the following procedure:

If the correct software is loaded, the following will be displayed on the Electronic Unit (E-Box) VAS6395/1 (2 seconds after the voltage supply is connected):

  1. > 1. START
  2. 2. NEXT [>]
NOTE:

If the following appears in the display, then incorrect software has been loaded:

1. >TEST

2. LEARN

If this is the case, then download the software from "Audi Service Net", "Workshop Equipment".

For Both E-boxes: 

Fig 6: Connect The Wire Set VAS 6395/2 To The Turbocharger Control Module 1
GWWA21-10465Courtesy of AUDI OF AMERICA, LLC

-- Disconnect the Turbocharger Control Module 1 -J724- connector.

-- Connect the Turbo E-Positioner Service Kit - Wire Set VAS6395/2 on the Turbocharger Control Module 2 -J724- and on the E-Positioner Service Kit VAS6395A/1.

Select on the VAS6395A/1 display:

Fig 7: Identifying Electronic Unit (E-Box)
GWWA21-10601Courtesy of AUDI OF AMERICA, LLC
  1. > 1. START
  2. 2. NEXT [>]

-- Press the button -4- to continue.

Select on the E-Box VAS6395A/1:

Fig 8: Identifying Electronic Unit (E-Box)
GWWA21-10601Courtesy of AUDI OF AMERICA, LLC
  1. Blank
  2. [OK]
NOTE:

If "[OK]" appears in the display, then the Turbocharger Control Module 1 -J724- adjustment range is OK.

If "FAULT [OK]" appears in the display, tap the side of the Turbocharger Control Module 1 -J724- housing several times with a screwdriver handle and then the button -item 4- to repeat the test.

-- Remove the bolt -arrow-.

Fig 9: Identifying Bolt
GWWA21-10452Courtesy of AUDI OF AMERICA, LLC
NOTE:

All other bolts visible in the illustration must not be removed.

-- Attach the Turbo E-Positioner Service Kit - Bracket VAS6395 /6 to the center opening in the bracket for the Turbocharger Control Module 1 -J724- and tighten the bolt to 8 Nm.

Fig 10: Identifying Bracket VAS 6395/6
GWWA21-10453Courtesy of AUDI OF AMERICA, LLC

-- Press the button -4- to continue.

Fig 11: Identifying Electronic Unit (E-Box)
GWWA21-10601Courtesy of AUDI OF AMERICA, LLC

-- While determining the voltage, tap on the side of the Turbocharger Control Module 1 -J724- housing with the handle of a screwdriver until the following appears in the display:

Select on the E-Box VAS6395A/1 display:

  1. X, XXX V
  2. [↑][↓][OK]

-- Write down the voltage.

NOTE:

If "FAULT [OK]" appears or if the voltage is less than 3.3 V or greater than 3.7 V, disconnect the E-Positioner Service Kit VAS6395 A/1 and repeat the entire procedure.

Select on the E-Box VAS6395A/1 display:

Fig 12: Identifying Electronic Unit (E-Box)
GWWA21-10601Courtesy of AUDI OF AMERICA, LLC
  1. X, XXX V
  2. [↑][↓][OK]

-- Adjust the Turbocharger Control Module 1 -J724- using the ↑  -5- or ↓  -6- buttons so that the coupling rod is accessible for removal.

-- Remove the circlips -arrows- and disconnect the coupling rod.

Fig 13: Identifying Circlips -Arrows- And Coupling Rod
GWWA21-10283Courtesy of AUDI OF AMERICA, LLC

Select on the E-Box VAS6395A/1 display:

Fig 14: Identifying Electronic Unit (E-Box)
GWWA21-10601Courtesy of AUDI OF AMERICA, LLC
  1. X, XXX V
  2. [↑][↓][OK]

-- Adjust Turbocharger Control Module 1 -J724- using the ↑  -5- or ↓  -item 6- buttons so that the bolts for Turbocharger Control Module 1 -J724- are accessible.

-- Disconnect the Turbo E-Positioner Service Kit - Wire Set VAS6395/2 from the Turbocharger Control Module 1 -J724-

Fig 15: Connect The Wire Set VAS 6395/2 To The Turbocharger Control Module 1
GWWA21-10465Courtesy of AUDI OF AMERICA, LLC
CAUTION:

The voltage supply for the Turbo E-Positioner Service Kit - E Box VAS6395/1A must remain connected.

-- Remove the bolts -1, 2 and 3- and dispose of them.

Fig 16: Identifying Bolts 1, 2 And 3
GWWA21-10594Courtesy of AUDI OF AMERICA, LLC
NOTE:

All other bolts visible in the illustration must not be removed.

-- Remove the old Turbocharger Control Module 1 -J724- and dispose of it.

CAUTION:

Make sure there are 3 insulating washers between the Turbocharger Control Module 1 -J724- and the bracket.