Audi Q7 Owners & Service Manuals

Audi Q7: Solenoid Coupling, Removing and Installing

Special tools and workshop equipment required

  • Clutch Module Puller -T40301-
  • Clutch Module Centering Device -T40302-
  • Test Adapter For Compressor Module -VAS6909A-

  Caution

This procedure contains mandatory replaceable parts. Refer to component overview prior to starting procedure.

Mandatory Replacement Parts

  • O-ring - Solenoid coupling

Removing

  • Supercharger secured to engine/transmission holder for repair work. Refer to → Chapter "Supercharger, Securing to Engine/Transmission Holder for Repair Work".

- Remove the coolant pipes from the supercharger. Refer to → Chapter "Supercharger Coolant Pipes, Removing and Installing".

- Remove the bolts -arrows-.

A21-10849

- Slightly lift the solenoid coupling -1- and turn until one of the three trim bolts is accessible.

- Remove the first bolt -arrow-.

- Remove the remaining bolts, to do so turn the solenoid coupling respectively 1/3 turn further.

A21-10848

- Remove the solenoid coupling -1- in direction of -arrow-.

A21-10887

- Loosen the clamping screw -arrow- for the drive plate two turns by turning the drive plate in the respective position.

A21-10797

- Install the Clutch Module Puller -T40301- on the drive plate.

  • The puller claws -arrows- must engage with the drive plate as shown.

A21-10798

- Remove the drive plate -2-.

- Remove trim -1-.

A21-10889

- Remove the O-ring -arrow-.

Check the Sacrificial Liner and the Outer Friction Lining for Wear.

  Note

Before reinstalling a used solenoid coupling the sacrificial liner and the outer friction lining must be checked for wear. If new solenoid coupling is installed this step does not apply.

A21-10890

- Place the caliper -1- as shown on the highest point on the sacrificial liner -2- and measure the distance -X- to the friction lining -3-.

  • Specified value -X-: minimum 0.2 mm.

- Perform the measurement all around on at least three locations.

- If specified value is not reached, replace the solenoid coupling.

A21-11098

- Place the drive plate -2- on the solenoid coupling -1- and install the Clutch Module Centering Device -T40302- hand-tight.

- With the feeler gauge -3- check the distance of the outer friction lining to the outer friction surface.

  • Specified value: minimum 0.2 mm.

- Perform the measurement all around on at least three locations.

- If specified value is not reached, replace the solenoid coupling.

A21-10952

  • The driver is still placed -2- on the solenoid coupling -1- and the Clutch Module Centering Device -T40302- is installed hand-tight.

- Connect the Test Adapter For Compressor Module -VAS6909- to a 12V battery or on the vehicle jump start terminal.

- Connect the Test Adapter for Compressor Module -VAS6909- connector with the solenoid coupling and switch on the power supply to the solenoid coupling.

  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.

- With the feeler gauge -3- on the position shown in the illustration check the distance from the clamping hub -shown in blue- to the outer friction surface in the energized state.

- Perform this measurement on all three locations on the clamping hub.

  • Specified value: maximum 1.3 mm

- If specified value is exceeded, replace the solenoid coupling.

- Switch off the Test Adapter For Compressor Module -VAS6909A-.

A21-10966

Installing

  Note

Replace the O-ring after removing.

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

A21-10890

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

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

A21-10799

- Insert the Clutch Module Centering Device -T40302- in the drive plate and the solenoid coupling.

  • The drive plate is centered to the solenoid coupling.

- Connect the Test Adapter For Compressor Module -VAS6909- to a 12V battery or on the vehicle jump start terminal.

- Connect the Test Adapter for Compressor Module -VAS6909- connector with the solenoid coupling and switch on the power supply to the solenoid coupling.

  • With the power supply switched on the drive plate is secured on the solenoid coupling.

  Note

  • Pay attention during the assembly that the solenoid coupling current feed with the Test Adapter for Compressor Module -VAS6909- is not interrupted.
  • Interrupting the solenoid coupling current feed with the Test Adapter for Compressor Module -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 Clutch Module Centering Device -T40302- with the power supply switched on.

A21-10808

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

  • The drive axle must be free of oil and grease.

A21-10894

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

  • Position the solenoid coupling drive plate so that the groove -4- for the coil spring alights with the arrow marking on the trim -3-.
  • Position the supercharger so that the coil spring -2- points to the mark "KEY"-1-.

A21-10809

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

A21-10888

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

A21-10891

- 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-.

- Switch off the power supply, remove the Test Adapter for Compressor Module -VAS6909- from the solenoid coupling and from the power source.

- Install the coolant pipes to the supercharger. Refer to → Chapter "Supercharger Coolant Pipes, Removing and Installing".

A21-10892

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 button Individual tests and select the following tree structures one after the other:

  • Drivetrain
  • TFSI V6
  • 01 - OBD-capable systems
  • Simos Fuel Injection and Ignition
  • Functions
  • 01 - Supercharger clutch adaptation

Tightening Specifications

  • Refer to → Chapter "Overview - Solenoid Coupling"

    READ NEXT:

     Supercharger Belt Pulley, Removing and Installing

    Special tools and workshop equipment required Counterhold - Multiple Use -T10172A- with Counterhold - Kit - Adapter 5 -T10172/5-   Caution This procedure contains mandatory replaceable par

     Supercharger, Securing on Engine and Transmission Holder

    Supercharger, Securing to Engine/Transmission Holder for Repair Work   Note The openings on the bottom of the supercharger housing should make it possible to see and reach the charge air cooler

     Charge Air System

    Overview - Charge Air System 1 - Seal Replace after removing 2 - O-Ring Replace after removing Coat with engine oil when installing the charge air cooler 3 - O-Ri

    SEE MORE:

     Overview - Bench Seat/Single Seat, Seat Low, Outer Second Row Seat

    1 - Front Trim Panel For stand support on side sill side Removing and installing. Refer to → Chapter "Stand Support Front Trim Panel on Side Sill Side, Removing and Installing, Seat Low, Outer Second Row". 2 - Bolt 50 Nm Seat, removing and installing. Refer to

     Instrument Panel, Removing and Installing

    Removing - Move the steering wheel as far down as possible to do this use the full steering column adjustment range. - Move the front seats all the way back and tilt backrests 45º.   WARNING Follow all safety precautions when working on pyrotechnic components. Refer to →&nb

    © 2019-2024 Copyright www.a-q7.com