Audi A4 Owners & Service Manuals

Audi A4: Underbody Trim Panel

Overview - Underbody Trim Panels

Overview - Underbody Trim Panels

1 -  Nut

  • 2 Nm
  • Quantity: 2

2 -  Front Underbody Panel

  • Removing and installing. Refer to → Chapter "Underbody Trim Panel, Removing and Installing, Front".

3 -  Impact Protector

4 -  Bolt

  • 2 Nm

5 -  Center Underbody Trim Panel

  • Removing and installing. Refer to → Chapter "Underbody Trim Panel, Removing and Installing, Center".

6 -  Rear Underbody Trim Panel

  • Removing and installing. Refer to → Chapter "Underbody Trim Panel, Removing and Installing, Rear".

7 -  Nut

  • 2 Nm
  • Quantity: 2

8 -  Bolt

  • 2 Nm
  • Quantity: 3

9 -  Side Underbody Trim Panel

  • Removing and installing. Refer to → Chapter "Underbody Trim Panel, Removing and Installing, Side".

10 -  Bracket

  • For the rear underbody trim panel

11 -  Nut

  • 2 Nm

12 -  Bolt

  • 2 Nm

13 -  Bolt

  • 2 Nm
  • Quantity: 2

14 -  Nut

  • 2 Nm
  • With fastener
  • Quantity: 2

15 -  Nut

  • 2 Nm
  • With fastener
  • Quantity: 11

Overview - Underbody Bracing

Overview - Underbody Bracing

1 -  Bolt

  • 55 Nm
  • Quantity: 4

2 -  Bolt

  • 50 Nm + 90º
  • Replace after removing
  • Quantity: 5

3 -  Right Diagonal Brace

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

4 -  Left Diagonal Brace

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

5 -  Bolt

  • 50 Nm + 90º
  • Replace after removing
  • Quantity: 5

6 -  Tunnel Brace

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

    READ NEXT:

     Underbody Trim Panels, Removing and Installing

    Underbody Trim Panel, Removing and Installing, Front Removing - Remove the nuts -arrows-. - Remove the front underbody trim panel -2- from the center underbody trim panel -1-. Installing

     Roof Molding/Roof Railing

    Overview - Roof Railing 1 -  Nut Quantity: 4 Insert with locking fluid. Refer to the Parts Catalog. Tightening specification and sequence. Refer to → Fig. "Roof Railing - Tightening

     Exterior Rearview Mirror

    Overview - Exterior Rearview Mirror 1 -  Mirror Trim 2 -  Bolt 1.5 Nm 3 -  Mirror Adjusting Unit Removing and installing. Refer to → Chapter "Mirror Adjusting

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     Charging the 12 volt vehicle battery

    Fig. 162 Engine compartment: connectors for a charger or jump start cables Observe the safety precautions > General information, in Battery general information. Requirement: only use chargers with a maximum charging current of 14.8 volts. The battery cables remain connected. The charging cable c

     Connections for Quick-Release Coupling on Refrigerant Circuit

    General Information Only valves and connections that are resistant to refrigerant R134a and refrigerant oil must be installed. Different connections (outer diameter) for high pressure and low pressure side. Discharge the refrigerant circuit before removing valves or valve inserts. Always scr

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