Removing and installing coolant hose connection: Audi A8 D4 (CDRA)
Step-by-step removing and installing coolant hose connection for the Audi A8 D4 (CDRA): 15 steps. 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: Audi A8 D4 (4H, 2010–2017)
- Opens: coolant
- Renewed: gasket
Don't miss
- Disregard (arrow).
- Renew gasket and O-rings.
- Do not reuse coolant.
🔧 Engine codes this applies to
📐 18 workshop diagrams for CDRA
Real factory drawings for this job — timing marks, bolt locations and routing. Locked in the free view.
📋 Procedure
- Drain coolant .
- Remove plenum chamber partition panel General body repairs, exterior50Bulkhead; Exploded view - plenum chamber partition panel.
- Move clear hoses (2) at air pipe.
- Loosen hose clips (1) and (3) and remove air pipe.
- Remove air cleaner housing (right-side) .
- Remove bolts (1) and (2).
- Detach coolant pipe (right-side) from coolant hose connection. [Note: Disregard (arrow).]
- Lift retaining clips (2, 3) and disconnect coolant hoses.
- Remove bolts (arrows).
- Detach clip (1) and detach coolant hose connection. [Note: Renew gasket and O-rings.]
- Lubricate O-ring with coolant.
- Connect coolant hose with plug-in connector .
- Install coolant pipe (right-side) .
- Install plenum chamber partition panel General body repairs, exterior50Bulkhead; Exploded view - plenum chamber partition panel. [Note: Do not reuse coolant.]
- Fill up with coolant .
Ask TorqFix about your Audi CDRA — 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 CDRA — free → or sign up free to see the drawingsOther AUDI procedures
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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.