Removing and installing particulate filter - vehicles with engine code CDUD — AUDI
Removing and installing particulate filter - vehicles with engine code CDUD on Audi: 16 steps, engines CDUD, CGQB, CPNB, CTBA.
Workshop procedure for AUDI — the exact step sequence and torque figures, straight from real workshop data.
🧭 Before you start
Fits: Audi Q5 (8R, 2008–2017)
- Renewed: seals
Don't miss
- Risk of damage to flexible joint in front exhaust pipe.Do NOT bend flexible joint in front exhaust pipe more than 10°. — Loosen bolt connections (arrows) on clamp.
- The nuts (2) are removed at a later stage.Disregard (item 3).
- Disregard (item 1).
- Disregard (items 2, 3).
- Disregard (item 3).
📐 1 workshop diagram for CDUD
Real factory drawings for this job — timing marks, bolt locations and routing. Locked in the free view.
📋 Procedure
- Remove rear noise insulation (2)General body repairs, exterior66Noise insulation; Exploded view - noise insulation.
- ⚠ Risk of damage to flexible joint in front exhaust pipe.Do NOT bend flexible joint in front exhaust pipe more than 10°. — Loosen bolt connections (arrows) on clamp.
- Push clamp back and lower front exhaust pipe slightly.
- Remove nut (1). [Note: The nuts (2) are removed at a later stage.Disregard (item 3).]
- Secure front exhaust pipe with clamp.
- Remove plenum chamber partition panel General body repairs, exterior50Bulkhead; Exploded view - plenum chamber partition panel.
- Take electrical connector (3) out of bracket, unplug it and move electrical wiring clear.
- Unplug electrical connector (2), unclip pressure differential sender G505 from bracket and move clear. [Note: Disregard (item 1).]
- Detach electrical connectors (1 and 4) from bracket and unplug. [Note: Disregard (items 2, 3).]
- Remove nuts (arrows) and detach particulate filter from turbocharger.
- Remove nuts (2) (accessible from above) and detach particulate filter. [Note: Disregard (item 3).] [Note: Renew seals, gaskets and self-locking nuts.]
- Electrical connections and routing .
- Install plenum chamber partition panel General body repairs, exterior50Bulkhead; Exploded view - plenum chamber partition panel.
- Align the exhaust system so it is free of stress .
- Install noise insulation General body repairs, exterior66Noise insulation; Exploded view - noise insulation.
- After renewing particulate filter, perform Adaption in Guided Functions.
Ask TorqFix about your Audi CDUD — it answers with the exact sequence for that engine and the workshop drawing for each step. First question is free after a 20-second sign-up, no card.
Ask about your Audi CDUD — free → or sign up free to see the drawingsOther AUDI procedures
- Removing and installing timing chain cover (top right) – Audi
- Removing and installing turbocharger - vehicles with engine codes CDUD, CPNB, CTBA and CTBC
- Removing and installing torque reaction support and cross member
- Removing and installing catalytic converter - vehicles with two turbochargers
- Removing and installing timing chain cover (top right) - vehicles with engine codes CGQB, CVUB, CVUC, DEHA
- Removing and installing toothed belt – Audi · 56 torque figures
- Removing engine – Audi A8 D3 · 41 torque figures
- Removing camshaft timing chain from camshafts – Audi A6/A7 C7 · 38 torque figures
- Installing engine – Audi A8 D4 · 36 torque figures
- Removing and installing camshaft timing chain · 29 torque figures
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.