Removing and installing coolant pipe (small): Audi A4 Cabriolet B6/B7 / A4 B6/B7 (ACK, AGA, AGE, AHA, …)

🧭 Before you start

Fits: Audi A4 Cabriolet B6/B7 (8H), Audi A4 B6/B7 (8E)

• Opens: coolant
• Renewed: o-rings

Don't miss

• Renew O-rings. Secure all hose connections with the correct type of hose clips (same as original equipment) Parts catalogue.

🔧 Engine codes this applies to

📋 Procedure

1. ⚠ Observe notes on procedure for disconnecting the battery Electrical system27. — Disconnect earth wire at battery with ignition switched off.
2. Drain off coolant .
3. Remove intake manifold 24.
4. Disconnect crankcase breather hose (3) at cylinder head cover.
5. Pull off retaining clip (2) on oil filter housing.

6. Unscrew bolt (1) and remove crankcase breather oil separator.
7. Detach coolant hoses (arrows) from coolant pipe (small).
8. Unscrew securing bolts (1) and (2) for coolant pipe.
9. Pull coolant pipe out of thermostat housing. [Note: Renew O-rings. Secure all hose connections with the correct type of hose clips (same as original equipment) Parts catalogue.]
10. Install intake manifold 24.
11. Observe notes on procedures required after connecting battery Electrical system27.
12. Fill cooling system .

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