Audi A4 Owners & Service Manuals

Audi A4: Subframe, Securing

Special tools and workshop equipment required

  • Torque Wrench 1331 5-50Nm -VAG1331-
  • Torque Wrench 1332 40-200Nm -VAG1332-
  • Engine and Gearbox Jack -VAS6931-
  • Gearbox Support -T40173-
  • Locating Pins -T40327-

Procedure

- Equipped on some models: Remove the left and right diagonal brace. Refer to → Body Exterior; Rep. Gr.66; Underbody Trim Panel; Diagonal braces, removing and installing

- Remove the muffler. Refer to → Rep. Gr.26; Exhaust Pipes/Mufflers; Muffler, Removing and Installing.

- Remove the left and right spring. Refer to → Chapter "Spring, Removing and Installing".

AWD Equipment Versions with Rear Final Drive Installed:

- Support the subframe using the -VAS6931- and -T40173- as shown on the rear final drive and on the subframe.

A42-10866

FWD or AWD Equipment Versions with Rear Final Drive Removed

- If necessary, bring the stabilizer bar into the installation position and secure it with bolts.

- Support the subframe using the -VAS6931- and -T40173- as shown on the subframe.

Continuation for All Versions

- Secure the subframe with the tensioning strap from the -VAS6931-.

A42-10867

  Caution

There is a risk of damaging the threads on the subframe threaded connection to the body.

  • The subframe bolts on the body must not be loosened or tightened with an impact wrench.
  • Always install all bolts by hand for the first few turns.

- Remove the left and right bolt -2- from the rear subframe one after the other and install a locating pin from the -T40327-.

  Note

If the locating pin cannot be inserted, rework the stop plate in the subframe mount near the retaining tabs slightly with a file.

- Tighten locating pin to 20 Nm.

  • The subframe position is now secured.

- Remove the left and right bolts -1- from the subframe.

A42-10638

Remove the -T40327-

Removal is performed in the reverse order. Note the following:

  Caution

There is a risk of damaging the threads on the subframe threaded connection to the body.

  • The subframe bolts on the body must not be loosened or tightened with an impact wrench.
  • Always install all bolts by hand for the first few turns.

  WARNING

Risk of accident!

If the vehicle will be driving on the streets, all bolts and nuts must be tightened properly according to the guidelines.

- Install the springs. Refer to → Chapter "Spring, Removing and Installing".

- A road test must be performed after completing repairs. If the steering wheel is crooked, the wheels must be aligned. Refer to → Chapter "Axle Alignment".

Tightening Specifications

  • Refer to → Chapter "Overview - Subframe"
  • Refer to → Rep. Gr.26; Exhaust Pipes/Mufflers; Overview - Muffler.
  • Refer to → Body Exterior; Rep. Gr.66; Underbody Trim Panel; Overview - Underbody Trim Panels.
  • Refer to → Chapter "Wheels and Tires"

    READ NEXT:

     Subframe, Removing and Installing

      Caution This procedure contains mandatory replaceable parts. Refer to component overview and parts catalog prior to starting procedure. Mandatory Replacement Parts Bolt - Bonded Rubber Bu

     Stabilizer Bar

    Overview - Stabilizer Bar 1 - Bolt 25 Nm + 90º Replace after removing Tighten in the curb weight position. Refer to → Chapter "Wheel Bearing in Curb Weight Position, Lifting Ve

     Control Arm, Tie Rod

    SEE MORE:

     Mounting Bracket, Removing and Installing

      NOTICE Risk of damaging the operating cable by deforming it. - Never sharply bend or kink the operating cable. Removing - Move the door window into the "closed" position. - Remove the door handle. Refer to → Chapter "Door Handle, Removing and Installing". - Driver

     Driver Side Airbag

    Overview - Driver Side Airbag 1 - Wiring Harness For Driver Airbag Igniter -N95- and Driver Airbag Release Valve Igniter -N490- Replacing. Refer to → Chapter "Airbag Connector, Replacing". 2 - Steering Column Electronics Control Module -J527- Overview. Refer to

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