Silencers and exhaust manifold - exploded view — AUDI

Silencers and exhaust manifold - exploded view
Gasket
Renew
Exhaust manifold
Removing and installing
Chapter
Bracket
Nut
23 Nm
Renew
Lubricate exhaust manifold studs with high-temperature paste. For high-temperature paste refer to
Electronic parts catalogue
Heat shield
Nut
23 Nm
Lambda probe
G39
(before catalytic converter), 55 Nm
After renewing, erase learnt values and in
engine control unit,
„Guided Functions“
.
When re-using the old Lambda probe, grease thread with
high-temperature paste
G 052 112 A3
; the paste must not get into the slots of the probe body.
Front exhaust pipe with catalytic converter
Protect against knocks and impact
With flexible joint
Do not bend flexible joint more than 10° – otherwise it can be damaged
Removing and installing
Chapter
Align exhaust system so it is free of stress
Chapter
Lambda probe after catalytic converter
G130
, 55 Nm
The threads on the new Lambda probes are coated with a special assembly paste.
If re-installing old Lambda probe, coat thread with high-temperature paste: Refer to
Electronic parts catalogue
for high-temperature paste
The assembly paste/high-temperature paste must not get into the slots on the probe body.
Removing and installing
Rep. gr.
24
Clamp (front)
Align exhaust system so it is free of stress before tightening clamp
Chapter
Installation position
Fig.
Tighten bolt connections evenly.
Nut
23 Nm
Rear tunnel cross-piece
Nut
23 Nm
Bolt
23 Nm
Rubber mounting
Renew if damaged
Clamp (rear)
For separate replacement of centre and rear silencers
Installation position
Chapter
Tighten bolt connections evenly.
Nut
23 Nm
Rubber mounting
Renew if damaged
Rear silencer
Combined in one unit with centre silencer as original equipment. Can be renewed individually for repair purposes
Separating centre and rear silencers
Chapter
Align exhaust system so it is free of stress
Chapter
Mounting
Renew if damaged
Bolt
23 Nm
Nut
23 Nm
Front tunnel cross-piece
Centre silencer
Combined in one unit with rear silencer as original equipment. Can be renewed individually for repair purposes
Separating centre and rear silencers
Chapter
Align exhaust system so it is free of stress
Chapter
Mounting
Renew if damaged
Bolt
23 Nm
Mounting
Renew if damaged
Nut
25 Nm
Renew
Lubricate exhaust manifold studs with high-temperature paste. For high-temperature paste refer to
Electronic parts catalogue
Bolt
23 Nm
Support for exhaust manifold
Gasket
Renew
Installation position of front clamp
When fitting clamp, make sure ends of bolts do not project below bottom of clamp
arrow
.
Bolt connection faces to right.
Installation position of rear clamp
When fitting clamp, make sure ends of bolts do not project below bottom of clamp
arrow
.
Bolt connection faces to rear