AUDI A4 2000 B5 / 1.G AWM Engine Exhaust System Components User Guide

26-11


Repair Manual, 1.8 Liter 4
-Cyl. 5V Turbo Fuel
Injection & Ignition, Engine Code(s): AWM, Repair Group 24
11 -
Oxygen sensor - 55 Nm Downstream of catalytic converterGrease only the threads with high-
temperature lubricant G 052 112 A3. The
lubricant must not get into the slots on the
sensor body. Checking:
12 -
Gasket
Always replace
13 -
Front exhaust pipe With flexible connection (de coupling
element) Do not bend flexible connection more than
10 - otherwise it can be damaged. Removing and installing Page 26
-32
Align exhaust system so it is free of stress
before tightening clamp Page 26
-37

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26-12


14 -
Mounting
Individual parts of mounting for manual
transmission Fig. 3
, Page 26
-16

Individual parts of mounting for automatic
transmission Fig. 4
, Page 26
-17

15 -
Front clamp
Align exhaust system so it is free of stress
before tightening clamp Page 26
-37

Installation position Fig. 1
, Page
26
-15

Tighten bolted connections evenly
16 -
40 Nm
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17 -
Rear muffler
Rear and center mufflers are one unit as
original equipment. In cases of repair
replace individually Cutting point Page 26
-20
Align exhaust system so it is free of stress
before tightening clamp Page 26
-37

18 -
Mounting
19 -
25 Nm
20 -
25 Nm
21 -
Mounting
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26-14


22 -
Rear clamp
For separate replacement of center and
rear mufflers Align exhaust system so it is free of stress
before tightening clamp Page 26
-37

Installation position Fig. 2
, Page
26
-15

Tighten bolted connections evenly
23 -
40 Nm
24 -
Mounting
25 -
25 Nm
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26-15


Fig. 1 Installation position of front clamp
- Install clamp in horizontal position.

Bolted connection facing to the left

Fig. 2 Installation position of rear clamp
- Install clamp in horizontal position.

Bolted connection facing to the left
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26-16


Fig. 3 Individual parts of mounting for vehicles with manual
transmission
1 - Buffer
2 - Spacer pipe
3 - Washer
4 - Lug, right
5 - Disc
6 - Bolt - 25 Nm
7 - Spacer
8 - Lug, left
9 - Compression spring
10 - Bolt - 25 Nm
11 - Nut, self-locking - 25 Nm
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26-17


Fig. 4 Individual parts of mounting for vehicles with automatic
transmission
1 - Disc
2 - Buffer
3 - Link
4 - Spacer
5 - Bolt - 25 Nm
6 - Bolt
7 - Disc
8 - Compression spring
9 - Spacer
10 - Nut, self-locking - 25 Nm
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26-18

Center and rear mufflers, separating

For individual replacement of the center or rear
muffler, a cutting point is marked on the
connecting pipe.
The cutting point is marked with an indentation
on the outside of the exhaust pipe.

Special tools and equipment

Body saw VAG 1523 AProtective goggles
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26-19

Vehicles with front wheel drive:

WARNING!
Wear protective goggles. - Cut exhaust pipe at right angles using body saw, e.g. VAG 1523 A, at
position marked -arrow-.
- When installing, position clamp centrally over saw cut.


Installation position of clamp -1-: Horizontally, bolted connections
face rear left wheel Fig. 2
, Page 26
-8
- Ensure exhaust system is aligned stress-free Page 26
-34
.
- Tighten bolted connections on clamp evenly to 40 Nm.
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26-20

Vehicles with all-wheel drive:

WARNING!
Wear protective goggles. - Cut exhaust pipe at right angles using body saw, e.g. VAG 1523 A, at
position marked -arrow-.
- When installing, position clamp centrally over saw cut.


Installation position of clamp -1-: Horizontally, bolted connections
face rear left wheel Fig. 2
, Page 26
-15

- Ensure exhaust system is aligned stress-free Page 26
-37
.
- Tighten bolted connections on clamp evenly to 40 Nm.
Pa
ge 20 of 41 Exhaust s
ystem com
ponents, removin
g and installin
g
11/21/2002 htt
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yp
e=re
pair&id=AUDI.B5.GE06.26.1