catalytic converter AUDI A8 1998 D2 / 1.G AHA ATQ Engines Exhaust System Components Manual

26-2


Exhaust manifold, front exhaust pipe and
Three Way Catalytic Converter (TWC) with
attachments

1 -
Spacer sleeve
2 -
Bolt
3 -
Washers
4 -
Bracket
5 -
Spacer bushing
6 -
Rubber bushing
7 -
25 Nm (18 ft lb)
8 -
Spring
9 -
Bolt
25 Nm (18 ft lb)
10 -
To center muffler
Pa
ge 3 of 12 Exhaust s
ystem com
ponents, removin
g and installin
g
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE03.26.1

26-3


CAUTION!
Part numbers are listed here for reference only.
Always check with your Parts department for
the latest information. 11 -
Left-front exhaust pipe with Three Way
Catalytic Converter (TWC)
The flexpipe in left and right exhaust pipes
must not be bent more than 10 , otherwise
it may be damaged
12 -
Heated Oxygen Sensor (HO2S) 2 -G108-
50 Nm (37 ft lb)Only grease threads using "G5" ("G5" must
not get into slots on body of sensor) Checking DTC memory Repair Manual,
2.8 Liter V6 5V Fuel Injection & Ignition,
Repair Group 01 Checking components and heating function
Repair Manual, 2.8 Liter V6 5V Fuel
Injection & Ignition, Repair Group 24
Pa
ge 4 of 12 Exhaust s
ystem com
ponents, removin
g and installin
g
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE03.26.1

26-5


CAUTION!
Part numbers are listed here for reference only.
Always check with your Parts department for
the latest information. 22 -
Heated Oxygen Sensor (HO2S) -G39-
50 Nm (37 ft lb)Only grease threads with "G5" ("G5" must
not get into slots on body of sensor) Checking DTC memory Repair Manual,
2.8 Liter V6 5V Fuel Injection & Ignition,
Repair Group 01 Checking components and heating
function Repair Manual, 2.8 Liter V6 5V
Fuel Injection & Ignition, Repair Group 24
23 -
Right-front exhaust pipe with Three Way
Catalytic Converter (TWC)
The flexpipe in left and right exhaust pipes
must not be bent more than 10 , otherwise
it may be damaged
Pa
ge 6 of 12 Exhaust s
ystem com
ponents, removin
g and installin
g
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE03.26.1

26-6


Mufflers with mounts

Vehicles with all-wheel drive
Vehicles with front-wheel-drive page 26
-9 .
1 -
40 Nm (30 ft lb)
2 -
From Three Way Catalytic Converter
(TWC)
3 -
Carriage bolts
4 -
Double clamp
5 -
25 Nm (18 ft lb)
6 -
Mounts
With retaining ring
7 -
Center muffler
8 -
Double clamp (for repair)
Pa
ge 7 of 12 Exhaust s
ystem com
ponents, removin
g and installin
g
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE03.26.1

26-9


Vehicles with front wheel drive
1 -
40 Nm (30 ft lb)
2 -
From Three Way Catalytic Converter
(TWC)
3 -
Carriage bolts
4 -
Double clamps
5 -
25 Nm (18 ft lb)
6 -
Mounts
With retaining ring
7 -
Center muffler
8 -
Bracket
9 -
Mount
10 -
Rear muffler
11 -
Double clamp (for repair)
Pa
ge 10 of 12 Exhaust s
ystem com
ponents, removin
g and installin
g
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE03.26.1