Removing and installing coolant pipe (front centre): Audi A8 D4 4.1 TDI (BTR, CCFA, CCFC, CDSB, …)

🧭 Before you start

Fits: Audi A8 D4 (4H, 2010–2017)

• Renewed: seals

Don't miss

• Oil supply lines remain in installation position.

🔧 Engine codes this applies to

📋 Procedure

1. Remove radiator .
2. Remove pump for exhaust gas recirculation cooler V400.
3. Remove coolant pipe (top front) .
4. Remove air cleaner housing (right-side) .
5. Unplug electrical connector (1).

6. Release hose clips (2) and (arrows) and remove air hose.
7. Remove bolt (1) and banjo bolt (2). [Note: Oil supply lines remain in installation position.]
8. Release hose clip (3) and detach air hose.
9. Release hose clips (1) and (2) and disconnect coolant hoses.
10. Remove bolts (1) and (2).
11. Detach coolant pipe (front centre) from cylinder block and from coolant hoses (open hose clips (arrows)). [Note: Renew seals and O-ring.Hose connections and hoses for charge air system must be free of oil and grease before assembly.Secure all hose connections with the correct type of hose clips (same as original equipment) Electronic parts catalogue.To ensure that the air hoses can be properly secured at their connections, spray rust remover onto the worm thread of used hose clips before installing.]
12. Install oil supply lines going to turbocharger .
13. Install air cleaner housing .
14. Install coolant pipe (top front) .
15. Install pump for exhaust gas recirculation cooler V400.
16. Install radiator .

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