Silencers and exhaust manifold on vehicles with engine codes BGU, BSE, BSF, CCSA - exploded view — AUDI
Silencers and exhaust manifold on vehicles with engine codes BGU, BSE, BSF, CCSA - exploded view on Audi: factory workshop procedure for engines BGU, BSE.
Workshop procedure for AUDI — the factory write-up, straight from real workshop data.
📐 56 workshop diagrams for BGU
Real factory drawings for this job — timing marks, bolt locations and routing. Locked in the free view.
📋 Procedure
ℹ️ Torque figures below come verbatim from workshop data — always cross-check against your vehicle's factory manual before final tightening.
Silencers and exhaust manifold on vehicles with engine codes BGU, BSE, BSF, CCSA - exploded view
Rear 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
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
23 Nm
Mounting
Renew if damaged
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
25 Nm
Renew
Lubricate exhaust manifold studs with high-temperature paste. For high-temperature paste refer to
Electronic parts catalogue
Observe correct tightening sequence
Anchor
Gasket
Renew
Exhaust manifold
Removing and installing
Chapter
25 Nm
Renew
Lambda probe
G39
(before catalytic converter), 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.
25 Nm
Front tunnel cross-piece
23 Nm
23 Nm
Rubber mounting
Renew if damaged
Clamp (rear)
For separate replacement of centre and rear silencers
Installation position
Fig.
Tighten bolt connections evenly.
25 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
23 Nm
23 Nm
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
TorqFix answers live for your specific car — tell it the engine code and it serves the matching sequence, torque figures and wiring for that exact variant.
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Who makes these pages, and how
TorqFix was built by a mechanic — after a 2,700 km drive with five roadside repairs that no diagnostic tool could explain.
The figures on this page come from manufacturer workshop documentation and are shown as they are. The page is assembled automatically from that data — it is not written by an AI. The AI works in the chat, where it answers for your specific car. It writes nothing here.
Variants of the same model differ. Cross-check torque against the factory manual for your engine before final tightening.
Seen a figure that does not match your manual? Write to us — we correct it and note when. support@torqfix.com
The story behind TorqFix →Workshop data on this page last updated 20 Sep 2026.