Removing and installing delivery line — AUDI
Removing and installing delivery line on Audi: 14 steps, engines CUUB, CUUC, CUUD, CUUE. What to remove, in what order, and what to check after.
Workshop procedure for AUDI — the exact step sequence and torque figures, straight from real workshop data.
🧭 Before you start
Fits: VW Caddy IV (SA, 2015–2020)
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- Place a cloth underneath separating points to catch any escaping reducing agent.
📋 Procedure
- Remove air filter housing .
- Unscrew bolts (1).
- Unclip air duct (2), and remove it.
- If fitted, remove noise insulation General body repairs, exterior66Noise insulation; Removing and installing noise insulation. [Note: Place a cloth underneath separating points to catch any escaping reducing agent.]
- Release plug-in connectors (1).
- Seal off all open lines and connections with clean plugs from engine bung setVAS 6122.
- Disconnect electrical connector (3).
- Unclip deliver line (4) from retainers (2).
- Remove delivery line (4).
- If necessary, fill reducing agent 40Descriptions of work; AdBlue® (reducing agent).
- Connect .
- Switch ignition on.
- Adapt SCR system learnt values , 01 - Systems capable of self-diagnosis, 01 - Diesel direction injection and preglow system EDC 17, 01 - Engine electronics functions, 01 - Adapting SCR system learnt values.
- Follow further instructions displayed on .
Other AUDI procedures
- Assembly overview - sump/oil pump, vehicles with two-piece sump
- Removing and installing auxiliary pump for heating V488, version 2
- Removing and installing exhaust gas recirculation temperature sensor G98
- Removing and installing fuel pressure regulating valve N276, version 2
- Removing and installing fuel hoses in engine compartment, 6.0 bar low pressure fuel system
- 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.