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:
Overview - Drive Axle
1 - Cap
Carefully drive off using a drift
Replace if damaged
Adhesive surface must be free of oil and grease
Coat the sealing surface with Sealant -D 454 300 A2- before installing on
CV joint.
2 - Circlip
Replace after removing
Insert in shaft groove
3 - In
Cylinder Head, Valvetrain
Timing Chain Cover
Overview - Timing Chain Cover
All procedures and components are described under:
→ Servicing - 4-Cylinder 2.0L 4V TFSI Engine; Rep. Gr.15; Timing Chain Cover.
Camshaft Adjustment Valve 1 -N205-/ Exhaust Camshaft Adjustment Valve 1
-N318-, Removing and Installing
