Checking cooling system for leaks — AUDI

🧭 Before you start

Fits: VW Caddy III (2K, 2004–2015)

• Renewed: cap

🔧 Engine codes this applies to

📐 7 workshop diagrams for ACK

Real factory drawings for this job — timing marks, bolt locations and routing. Locked in the free view.

📋 Procedure

1. Observe safety precautions .
2. ⚠ Risk of scalding.The cooling system is pressurised. When the engine is warm, the coolant temperature may be above 100 °C.Before carrying out repairs, release pressure and allow temperature to drop as necessary. — Open filler cap on coolant expansion tank.
3. Screw adapter for cooling system testerV.A.G 1274/8 into coolant expansion tank.
4. Clamp connectorV.A.G 1274 B/1 into adapter for cooling system testerV.A.G 1274/8.
5. Join connection pieceV.A.G 1274 B/1 to cooling system testerV.A.G 1274 B using connecting hose supplied.

6. Using hand pump on tester, build up a pressure of approx. 1.0 bar.
7. ⚠ Risk of scalding! Before disconnecting cooling system testerV.A.G 1274 B from connecting hose or connectorV.A.G 1274 B/1, relieve existing pressure under all circumstances. To do this, press pressure relief valve on cooling system testerV.A.G 1274 B until pressure gauge displays value of »0«. — Find leaks and rectify.
8. Screw cap into adapter for cooling system testerV.A.G 1274/9.
9. Clamp connectorV.A.G 1274 B/1 into adapter for cooling system testerV.A.G 1274/9.
10. Join connection pieceV.A.G 1274 B/1 to cooling system testerV.A.G 1274 B using connecting hose supplied.
11. Using hand pump on cooling system tester, build up a pressure of approx. 1.6 bar.
12. Renew cap.
13. Increase pressure to over 1.6 bar.
14. Renew cap.

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