26 - Exhaust System; Removing And Installing Parts Of Exhaust System; Exhaust System - Exploded View Of Components - Audi Q7 2007 Workshop Manual

Audi Q7 2007 !
6
6-cylinder TDI engine (3.0 ltr. 4-valve common rail), mechanics 01.2006
26 – Exhaust system
1 Removing and installing parts of
exhaust system
Note
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
⇒ page 217
stress
" 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
202
Repair Group 26 – Exhaust system
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