Audi Q7 2007
!
6-cylinder TDI engine (3.0 ltr. 4-valve common rail), mechanics 01.2006
Repair Group 26 – Exhaust system
6
202
1
Removing and installing parts of
exhaust system
♦
Renew gaskets and self-locking nuts.
♦
After working on the exhaust system, ensure that the sys-
tem is not under stress and that it has sufficient clearance
from the body. If necessary, loosen clamps and align si-
lencers and exhaust pipes so that sufficient clearance is
maintained to the body at all points and the mountings are
evenly loaded.
1.1
Exhaust system - exploded view of components
1 - 23 Nm
"
Renew
2 - Mounting
"
Renew if damaged
"
Check preload
⇒
“1.10 Stress-
free alignment of
exhaust system” on
page 217
3 - Clamp
"
Before tightening,
align exhaust sys-
tem so it is free of
stress
⇒
page 217
"
Installation position
⇒
Fig. on page 204
"
Tighten bolt con-
nections evenly
4 - 23 Nm
5 - 23 Nm
6 - Bracket
7 - Turbocharger
8 - Gasket
"
Renew
9 - 23 Nm
"
Renew
10 - Lambda probe -G39-
"
The screw threads
on the new Lambda
probes are coated
with a special paste.
"
Coat thread with
high-temperature
paste when re-using old Lambda probes; High-temperature paste
⇒
Parts catalogue.
"
The assembly/high-temperature paste must not get into the slots on the probe body.
"
Remove and install using ring spanner for Lambda probe -3337-
⇒
Rep. Gr. 23
26 – Exhaust system
Note
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