Audi A4 Owners & Service Manuals

Audi A4: Overview - Subframe

Audi A4 (B9) 2016-2026 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

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     Commercially Available Tools and Materials

    Fin comb Fill hoses 5/8"-18 UNF thread   Note Use differently colored charging hoses (1800 mm long). Have valve opener and spare seals to hand. A charging hose in short version is also included in Refrigerant Circuits Adapter Set 1 -VAS6338/1-. Connection piece for refrigerant cylinder

     Tie Rod, Removing and Installing

    Special tools and workshop equipment required Torque Wrench 1332 40-200Nm -VAG1332- Torque Wrench Insert - Open Jaw -VAG1923-   Caution This procedure contains mandatory replaceable parts. Refer to component overview and parts catalog prior to starting procedure. Mandatory Replacement P

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