Checking torque converter lock-up clutch: VW Passat B5 / Phaeton

🧭 Before you start

Fits: VW Passat B5 (3B), VW Phaeton (3D)

📋 Procedure

1. ⚠ Test equipment must always be secured on the rear seat and operated from that position by a second person.If test instruments are operated from the front passenger seat and the vehicle is involved in an accident, the person sitting in this seat may suffer serious injuries when the airbag is triggered. — Connect vehicle diagnosis, testing and information systemVAS 5051 to diagnostic connection with ignition switched off.
2. Start engine.
3. Touch Vehicle self-diagnosis button.
4. Select vehicle system "“02 - Gearbox electronics”" from list (1).
5. Wait until next display appears on screen.

6. Select function "“08 - Read measured value block”" from list (1).
7. Press button 7 for "“display group 007”" on keypad (2) and confirm by touching Q button.
8. Perform road test.
9. Check display in zones (3) and (4). Specifications:
10. Torque converter lock-up clutch defective or worn.
11. Incorrect torque converter version installed.
12. Mechanical fault in automatic gearbox pressure control valve 4N218.
13. Problems with ATF supply to automatic gearbox pressure control valve 4N218.
14. Torque converter pressure valve defective.
15. Valve for torque converter lock-up clutch defective.
16. Exit function "“08 - Read measured value block”" by touching ← button.
17. Select function "“06 - End output”".
18. Switch off ignition and disconnect self-diagnosis connection.

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