Audi A4 Owners & Service Manuals

Audi A4: Overview - Subframe

Subframe

  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.

There is a risk of damaging the suspension components.

  • If the subframe mount, steering gear or subframe crossbrace are not installed correctly, do not rest the vehicle on its wheels.
  • Supporting the vehicle at the subframe or the subframe crossbrace (for example, using a floor jack or similar device) is not permitted.

Subframe

1 - Bolt

  • 90 Nm +90º
  • Replace after removing

2 - Fitting Bolt

  • 90 Nm +90º
  • Replace after removing

3 - Bolt

  • 30 Nm

4 - Subframe Crossbrace

  • Removing and installing. Refer to → Chapter "Subframe Crossbrace, Removing and Installing".

5 - Bolt

  • 115 Nm + 180º
  • Replace after removing
  • Loosen and tighten together with -Item 11- → Item and -Item 12- → Item diagonally in stages

6 - Subframe

  • Securing. Refer to → Chapter "Subframe, Securing".
  • Lowering. Refer to → Chapter "Subframe, Lowering".
  • Removing and installing. Refer to → Chapter "Subframe with Steering Gear, Removing and Installing".

7 - Bolts

  • 9 Nm

8 - Shield

  • Removing and installing. Refer to → Chapter "Subframe Shield, Removing and Installing".

9 - Nut

  • 9 Nm

10 - Steering Gear

  • Overview. Refer to → Chapter "Overview - Steering Gear".

11 - Bolt

  • 115 Nm + 180º
  • Replace after removing
  • Loosen and tighten together with -Item 5- and -Item 12- → Item diagonally in stages

12 - Bolt

  • 50 Nm + 90º
  • Replace after removing
  • Loosen and tighten together with -Item 5- and -Item 11- → Item diagonally in stages

13 - Clip

Subframe Crossbrace - Tightening Sequence

- Tighten the bolts in the steps shown in the sequence:

A40-10515

Subframe Crossbrace - Tightening Sequence

Stabilizer Bar

Stabilizer Bar

1 - Nut

  • 30 Nm
  • Replace after removing
  • Remove and tighten evenly alternating from side to side.

2 - Clamp

3 - Stabilizer Bar

  • With rubber bushing
  • The rubber bushing cannot be replaced separately
  • Removing and installing. Refer to → Chapter "Stabilizer Bar, Removing and Installing".

4 - Nut

  • 40 Nm + 90º
  • Replace after removing
  • Tighten in the curb weight position. Refer to → Chapter "Wheel Bearing in Curb Weight Position, Lifting Vehicles with Coil Spring".

5 - Subframe

6 - Bolt

  • Replace after removing

7 - Coupling Rod

  • Removing and installing. Refer to → Chapter "Coupling Rod, Removing and Installing".

8 - Shock Absorber Fork

  • Removing and installing. Refer to → Chapter "Shock Absorber Fork, Removing and Installing".

9 - Nut

  • 40 Nm + 90º
  • Replace after removing
  • Tighten in the curb weight position. Refer to → Chapter "Wheel Bearing in Curb Weight Position, Lifting Vehicles with Coil Spring".

10 - Bolt

  • Replace after removing

    READ NEXT:

     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 -

     Subframe, Lowering

    Special tools and workshop equipment required Torque Wrench 1331 5-50Nm -VAG1331- Torque Wrench 1332 40-200Nm -VAG1332- Tensioning Straps -T10038- Engine and Gearbox Jack -VAS6931- Locating Pins

     Subframe with Steering Gear, Removing and Installing

    Special tools and workshop equipment required Torque Wrench 1331 5-50Nm -VAG1331- Torque Wrench 1332 40-200Nm -VAG1332- Engine and Gearbox Jack -VAS6931- Ball Joint Splitter -VAS251805-, not illu

    SEE MORE:

     Special Tools

    Special tools and workshop equipment required Locking Pin -T10060A- Engine Support - Supplement Kit - Adapter -T40093/6- from the Engine Support - Supplement Kit -T40093A- Clutch Module Assembly Aid -T40169- Clutch Module Transportation Lock -T40170- Wrench - 21mm -T40263- Ada

     Speaker Trim in Door Trim Panels, Removing and Installing

    Special tools and workshop equipment required Pry Lever -80-200- Front Bass Speaker Trim, Removing - Carefully pry out the speaker trim -1- along the door trim panel seam using the Pry Lever -80-200- in the direction of -arrow A-. - Disengage the speaker trim at the rear from the door

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