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Home >> Audi >> 2019 >> Q7 Prestige >> Repair and Diagnosis >> Engine Mechanical >> Blowers, Superchargers & Turbochargers >> Turbocharger, Supercharger [CREC] >> 21 Turbocharger, Supercharger >> Supercharger >> Solenoid Coupling, Removing And Installing >> Installing

Solenoid Coupling, Removing And Installing: Installing

Fig 1: Identifying O-Ring
GWWA21-10890Courtesy of AUDI OF AMERICA, LLC
NOTE:

Replace the O-ring after removing.

-- Lay the O-ring -arrow- in the groove on the compressor housing.

-- Place the driver -2- on the solenoid coupling -1-.

Fig 2: Identifying Clutch, Clutch Plate And Trim
GWWA21-10799Courtesy of AUDI OF AMERICA, LLC

-- Place the trim -3- on the solenoid coupling and secure with three bolts -4-.

-- Insert the : T40302  in the drive plate and the solenoid coupling.

Fig 3: Inserting Centering Pin T40302
GWWA21-10808Courtesy of AUDI OF AMERICA, LLC

-- Connect the : VAS6909  to a 12V battery or on the vehicle jump start terminal.

-- Connect the connector from the : VAS6909  to the solenoid coupling and switch on the power supply to the solenoid coupling.

NOTE:

Pay attention during the assembly that the solenoid coupling current feed with the : VAS6909  is not interrupted during the assembly.

Interrupting the solenoid coupling current feed with the : VAS6909  may only take place when the clamping hub clamping screw is secured on the shaft.

CAUTION:

There is a risk of destroying the solenoid coupling.

  • The solenoid coupling must not be connected longer than 15 minutes to the power supply.
  • The current feed heats the solenoid coupling.

-- Remove the : T40302  with the power supply switched on.

-- Check that the coil spring -1- is seated correctly in the drive axle -2-.

Fig 4: Identifying Woodruff Key
GWWA21-10894Courtesy of AUDI OF AMERICA, LLC

The following marks help with the allocation of the solenoid coupling driver to the supercharger shaft:

Fig 5: Identifying Markings
GWWA21-10809Courtesy of AUDI OF AMERICA, LLC

-- Place the solenoid coupling drive plate -1- on the supercharger shaft -2- -arrow-.

Fig 6: Setting Clutch Plate On Supercharger Shaft
GWWA21-10888Courtesy of AUDI OF AMERICA, LLC

-- With the power supply still switched on, place the solenoid coupling on the supercharger and tighten the bolts -arrows-.

Fig 7: Identifying Bolts
GWWA21-10891Courtesy of AUDI OF AMERICA, LLC

-- With the power supply still switched on push the belt pulley by hand downward to the supercharger in direction of -arrow A- and at the same time tighten the clamping screw -arrow B-.

Fig 8: Identifying Clamping Screw
GWWA21-10892Courtesy of AUDI OF AMERICA, LLC

-- Switch off the power supply and remove the : VAS6909  from the solenoid coupling and from the power source.

-- Install the coolant pipes on the supercharger. Refer to SUPERCHARGER COOLANT PIPES, REMOVING AND INSTALLING .

Adapt the solenoid coupling after removing and installing or replacing:

-- Connect the Vehicle Diagnostic Tester.

-- Switch the ignition on.

-- Select and start the Diagnostic  operating mode.

-- Select the Test plan  tab.

-- Select the Select individual test  button and select the following tree structure consecutively:

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