Audi A4 Owners & Service Manuals

Audi A4: Overview - Subframe

Audi A4 (B9) 2016-2025 Service Manual / Chassis / Rear Suspension / Subframe / Overview - Subframe

Overview - Subframe, FWD

  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.

Overview - Subframe, FWD

1 - Bolt

  • 130 Nm + 180º
  • Replace after removing

2 - Front Bonded Rubber Bushing

  • For the subframe

3 - Subframe

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

4 - Rear Bonded Rubber Bushing

  • For the subframe

5 - Bolt

  • 90 Nm + 180º
  • Replace after removing

Overview - Subframe, AWD

  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.

Overview - Subframe, AWD

1 - Bolt

  • Replace after removing

2 - Rear Final Drive

3 - Stop Buffer

4 - Bolt

  • 130 Nm + 180º
  • Replace after removing

5 - Bolt

6 - Front Bonded Rubber Bushing

  • For the subframe

7 - Subframe

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

8 - Spacer

  • Installed depending on the model

9 - Nut

  • 20 Nm

10 - Rear Bonded Rubber Bushing

  • For the rear final drive
  • Removing and installing. Refer to → Chapter "Rear Bonded Rubber Bushing for Rear Final Drive, Removing and Installing".
  • Installation position. Refer to → Fig. "Rear Bonded Rubber Bushings Installation Position for the Rear Final Drive".

11 - Bolt

  • Tightening specification. Refer to → Rear Final Drive; Rep. Gr.39; Subframe Mount; Overview - Subframe Mount.

12 - Spacer

  • Installed depending on the model

13 - Rear Bonded Rubber Bushing

  • For the subframe

14 - Bolt

  • 90 Nm + 180º
  • Replace after removing

15 - Nut

  • Tightening specification. Refer to → Rear Final Drive; Rep. Gr.39; Subframe Mount; Overview - Subframe Mount.

Rear Bonded Rubber Bushings Installation Position for the Rear Final Drive

  • The grooves -arrows- on the bonded rubber bushings -1- are at a right angle.

A42-10850

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     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, 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

    SEE MORE:

     Radiator Grille/Front Trim

    Overview - Radiator Grille 1 -  Emblem Overview. Refer to → Chapter "Overview - Name Badges and Emblems". 2 -  Cover For the front camera 3 -  Radiator Grille Removing and installing. Refer to → Chapter "Radiator Grille, Removing and Installing".

     Electronic Stabilization Control

    Description Electronic Stabilization Control (ESC) supports driver safety. It reduces the risk of slipping and improves driving stability. ESC detects critical situations, such as if the vehicle is oversteering or understeering, or if the wheels are spinning. The brakes are applied or the motor t

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