Audi A4 Owners & Service Manuals

Audi A4: Floor Heat Shield, Removing and Installing

Audi A4 (B9) 2016-2024 Service Manual / Body / Body Exterior / Exterior Equipment / Floor Heat Shield, Removing and Installing

Plenum Chamber Bulkhead Heat Shield, Removing and Installing

Removing

- Remove the plenum chamber bulkhead. Refer to → Chapter "Plenum Chamber Bulkhead, Removing and Installing".

- Remove the lock washers -arrows-.

- Remove the heat shield -1- from the plenum chamber bulkhead -2-.

A66-11646

Installing

Install in reverse order of removal.

Tightening Specifications

  • Refer to → Chapter "Overview - Heat Shield"

Rear Heat Shield for Longitudinal Member, Removing and Installing

Removing

- Remove the plenum chamber bulkhead. Refer to → Chapter "Plenum Chamber Bulkhead, Removing and Installing".

- Remove the rear noise insulation. Refer to → Chapter "Noise Insulation, Removing and Installing, Rear".

Right Side of Vehicle

- Remove the front muffler/front exhaust pipe. Refer to → Engine Mechanical; Rep. Gr.26; Exhaust Pipes/Mufflers; Overview - Muffler and → Engine Mechanical; Rep. Gr.26; Emissions Control System; Overview - Emissions Control System.

- Remove the lock washers -arrows-.

- Remove the heat shield -1-.

A66-11647

Left Side of Vehicle

- Remove the lock washers -arrows-.

- Remove the heat shield -1-.

A66-11648

Installing

Install in reverse order of removal.

Tightening Specifications

  • Refer to → Chapter "Overview - Heat Shield"

Front Heat Shield for Longitudinal Member, Removing and Installing

Removing

- Remove the rear noise insulation. Refer to → Chapter "Noise Insulation, Removing and Installing, Rear".

Left Side of Vehicle

- Remove the bolt -4-.

- Remove the lock washer -3- and clips -1-.

- Remove the heat shield -2-.

A66-11650

Right Side of Vehicle

- Remove the bolt -3-.

- Remove the clips -1 and 4-.

- Remove the heat shield -2-.

A66-11649

Installing

Install in reverse order of removal.

Tightening Specifications

  • Refer to → Chapter "Overview - Heat Shield"

Upper Front Heat Shield for Tunnel, Removing and Installing

Special tools and workshop equipment required

  • Engine and Gearbox Jack -VAS6931-
  • Engine/Gearbox Jack - Gearbox Support -T10337-

Removing

- TFSI vehicles: Remove the front muffler. Refer to → Engine Mechanical; Rep. Gr.26; Exhaust Pipes/Mufflers; Front Muffler, Removing and Installing.

- TDI vehicles: Remove the front exhaust pipe. Refer to → Engine Mechanical; Rep. Gr.26; Exhaust Pipes/Mufflers; Front Exhaust Pipe, Removing and Installing.

- Remove the drive axle. Refer to → Rear Final Drive; Rep. Gr.39; Propshaft; Propshaft, Removing and Installing.

- Place the -T10337- on the -VAS6931- and position it at the bottom of the transmission.

A34-11526

- Remove the tunnel crossmember bolts -arrows-.

TIP

For reasons of clarity, the -T10337- is not shown.

A34-11517

- Lower the engine/transmission assembly by dimension -a- using the -VAS6931-.

  • Dimension -a- = maximum 40 mm.

A10-10867

- Free up the wiring harness -4-.

- Remove the lock washers -1-.

- Remove the nuts -2-.

- Remove the heat shield -3-.

A66-11653

Installing

Install in reverse order of removal and note the following:

Tightening Specifications

  • Refer to → Chapter "Overview - Heat Shield"
  • Refer to → Manual Transmission; Rep. Gr.34; Subframe Mount; Overview - Subframe Mount, → Dual-Clutch Transmission; Rep. Gr.34; Subframe Mount; Overview - Subframe Mount or → Automatic Transmission; Rep. Gr.37; Subframe Mount; Overview - Subframe Mount.

Transmission Tunnel Heat Shield, Removing and Installing

Removing

- TFSI vehicles: Remove the front muffler. Refer to → Engine Mechanical; Rep. Gr.26; Exhaust Pipes/Mufflers; Front Muffler, Removing and Installing.

- TDI vehicles: Remove the front exhaust pipe. Refer to → Engine Mechanical; Rep. Gr.26; Exhaust Pipes/Mufflers; Front Exhaust Pipe, Removing and Installing.

- Remove the driveshaft. Refer to → Rear Final Drive; Rep. Gr.39; Propshaft; Propshaft, Removing and Installing.

- Remove the nuts -arrows- and bolt -2- for the underbody trim panel -1- in the heat shield area.

A66-11699

- Remove the lock washers -arrows-.

- Remove the heat shield -1-.

A66-11632

Installing

Install in reverse order of removal.

Tightening Specifications

  • Refer to → Chapter "Overview - Heat Shield"

Driveshaft Heat Shield, Removing and Installing

Removing

- Remove the nuts -arrows-.

- Remove the exhaust system clamping sleeve. Refer to → Engine Mechanical; Rep. Gr.26; Exhaust Pipes/Mufflers; Overview - Muffler and → Engine Mechanical; Rep. Gr.26; Emissions Control System; Overview - Emissions Control System.

- Remove the heat shield -1- toward the front.

A66-11651

Installing

Install in reverse order of removal.

Tightening Specifications

  • Refer to → Chapter "Overview - Heat Shield"

Center Exhaust System Heat Shield, Removing and Installing, FWD Version

Removing

- Remove the rear section of the exhaust system. Refer to → Engine Mechanical; Rep. Gr.26; Exhaust Pipes/Mufflers; Overview - Mufflers.

- Remove the left rear underbody trim panel. Refer to → Chapter "Underbody Trim Panel, Removing and Installing, Rear".

- Remove the nut -3- and bolt -1-.

- Remove the heat shield -2-.

A66-11730

Installing

Install in reverse order of removal.

Tightening Specifications

  • Refer to → Chapter "Overview - Heat Shield"

Center Exhaust System Heat Shield, Removing and Installing, AWD Version

Removing

- Remove the rear section of the exhaust system. Refer to → Engine Mechanical; Rep. Gr.26; Exhaust Pipes/Mufflers; Overview - Mufflers.

- Remove the nuts -3 and 4- and bolt -2-.

- Remove the heat shield -1-.

A66-11652

Installing

Install in reverse order of removal.

Tightening Specifications

  • Refer to → Fig. "Heat Shield - Tightening Specification and Sequence, Version with AWD"

Spare Tire Well Heat Shield, Removing and Installing

Removing

- Vehicles with diagonal braces: Remove the diagonal braces. Refer to → Chapter "Diagonal Braces, Removing and Installing".

- Remove the nuts -1 and 4-.

- TDI vehicles: Free up the line -2--arrows-.

- TFSI vehicles: Remove the nuts -3-.

- Remove the heat shield -5-.

A66-11633

Installing

Install in reverse order of removal.

Tightening Specifications

  • Refer to → Chapter "Overview - Heat Shield"

Rear Muffler Heat Shield, Removing and Installing

Special tools and workshop equipment required

  • Engine and Gearbox Jack -VAS6931-

Removing

- Loosen the rear muffler mounting and lower it slightly using the -VAS6931-. Refer to → Engine Mechanical; Rep. Gr.26; Exhaust Pipes/Muffler; Overview - Muffler.

- Remove the nuts -arrows-.

- Remove the heat shield -1-.

A66-11654

Installing

Install in reverse order of removal.

Tightening Specifications

  • Refer to → Chapter "Overview - Heat Shield"

    READ NEXT:

     Noise Insulation

    Overview - Noise Insulation 1 -  Quick Release Without fastener 2 -  Plug/Rubber Grommet Plug for vehicles without parking heater Rubber grommet for parking heater exhaust pipe

     Underbody Trim Panel

    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 In

     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

    SEE MORE:

     Mechatronic

    Overview - Mechatronic 1 - Transmission Fluid Pan Removing and installing. Refer to → Chapter "Transmission Fluid Pan, Removing and Installing". Aluminum or plastic 2 - Bolt Tightening specification and sequence. Refer to → Fig. "Transmission Fluid Pan - Tig

     Refrigerant R134a

    Refrigerant R134a Physical Data Vehicle air conditioning systems make use of the vaporization and condensation process. In this case, one works with a substance which boils easily, designated as refrigerant. The refrigerant used is tetrafluoroethane R134a, which boils at -26.5 ºC (-15.7 ºF) at

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