Audi A4: 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
3 - Bolt
- 12 Nm
- Quantity: 2
4 - Rear Noise Insulation
- Removing and installing. Refer to → Chapter "Noise Insulation, Removing and Installing, Rear".
5 - Air Guide
- Removing and installing. Refer to → Chapter "Noise Insulation, Removing and Installing, Rear".
6 - Expanding Rivet
- Quantity: 2
7 - Quick Release
- Without fastener
- Quantity: 5
8 - Front Noise Insulation
- There are different versions. Refer to the Parts Catalog.
- Removing and installing. Refer to → Chapter "Noise Insulation, Removing and Installing, Front".
9 - Expanding Rivet
10 - Fastener
- Quantity: 7
11 - Quick Release
- Quantity: 7
12 - Bolt
- 20 Nm
- Quantity: 4
Noise Insulation, Removing and Installing
Noise Insulation, Removing and Installing, Front
Removing
- Remove the bolts -1-.
- Loosen the quick-release fasteners -2, 4 and 5-.
- Remove the front noise insulation -3-.
Installing
Install in reverse order of removal and note the following:
Vehicles with Parking Heater
- The rubber grommet -A- must rest without tension in the noise insulation -B-.
- The exhaust pipe -C- must be flush with the rubber grommet or it can protrude out slightly.
- The exhaust pipe opening must be perpendicular to the noise insulation and must not point in the direction of travel -arrow-.
Tightening Specifications
- Refer to → Chapter "Overview - Noise Insulation"
Noise Insulation, Removing and Installing, Rear
Removing
- Remove the expanding rivets -arrows-.
- Disengage the quick releases -2 and 3-.
- Remove the rear noise insulation -4- and air guide -1-.
Installing
Install in reverse order of removal.
READ NEXT:
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
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
SEE MORE:
Central locking
General information
WARNING
If you leave the vehicle, switch the ignition
off and take the key with you. This applies
particularly when children remain in the vehicle.
Otherwise, children could start the vehicle
or operate electrical equipment (such
as power windows), which increases the risk
Checking Pressures on Vehicles with Expansion Valve and Receiver/Dryer (with
Internally Regulated Compressor)
General Information
Note
Connect the A/C service station. Refer to
→ Chapter "A/C Service Station, Connecting".
Observe the test requirements. Refer to
→ Chapter "Pressures, Checking".
- With the ignition switched off, check the pressure in the
refrigerant circuit (u
