Audi A4: 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
Install in reverse order of removal.
Tightening Specifications
- Refer to → Chapter "Overview - Underbody Trim Panels"
Underbody Trim Panel, Removing and Installing, Center
Removing
- Remove the nuts -arrows- and the bolt -2-.
- Remove the center underbody trim panel -1-.
Installing
Install in reverse order of removal.
Tightening Specifications
- Refer to → Chapter "Overview - Underbody Trim Panels"
Underbody Trim Panel, Removing and Installing, Rear
Removing
- Remove the nuts -2 and 3- and bolts -1-.
- Remove the rear underbody trim panel -4-.
Installing
Install in reverse order of removal.
Tightening Specifications
- Refer to → Chapter "Overview - Underbody Trim Panels"
Underbody Trim Panel, Removing and Installing, Side
Removing
- Remove the nuts -3- and bolts -1-.
- Remove the side underbody trim panel -2-.
Installing
Install in reverse order of removal.
Tightening Specifications
- Refer to → Chapter "Overview - Underbody Trim Panels"
Tunnel Brace, Removing and Installing
Removing
- Remove the bolts -arrows-.
- Remove the tunnel brace -1-.
Installing
Install in reverse order of removal.
Tightening Specifications
- Refer to → Chapter "Overview - Underbody Bracing"
Diagonal Braces, Removing and Installing
Caution
This procedure contains mandatory replaceable parts. Refer to component overview and parts catalog prior to starting procedure.
Mandatory Replacement Parts
- Bolts - Right Diagonal Brace to Body
- Bolts - Left Diagonal Brace to Body
Removing
NOTICE
Risk of damaging the thread by using an impact wrench.
- When installing, position the bolts by hand and screw in the first threads.
- Do not loosen or tighten the bolts with an impact wrench.
- Remove the bolts -1 and 3- and remove the diagonal braces -2 and 4-.
Installing
Install in reverse order of removal and note the following:
Tightening Specifications
- Refer to → Chapter "Overview - Underbody Bracing"
READ NEXT:
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
Wheel Housing Liner
Overview - Front Wheel Housing Liner
Overview - Wheel Housing Liner
1 -
Drive Axle Cover
Removing and installing. Refer to
→ Chapter "Drive Axle Cover, Removing and Installing".
SEE MORE:
Subframe Mount
Overview - Subframe Mount
Engine Mount
1 - Subframe
2 - Engine Mount
Versions with
Left Electrohydraulic Engine Mount Solenoid Valve -N144-
Right Electrohydraulic Engine Mount Solenoid Valve -N145-
Removing and installing. Refer to
→ Chapter "Engine Mount, Remov
Rear Seat Covers and Cushions
Overview - Cover and Cushion
Overview - Cover and Cushion, Sport Bench Seat
1 - Seat Frame
With the molded piece
2 - Upholstery Clip
For securing the cover to the cushion
Replace
Install at the same location with Upholstery Clip Pliers -VAG1634-.
3 - Wire
Cov
