Motronic injection and ignition system (5-cyl. 4-valve) — Evaluating measured value blocks, display groups 10...29 -Ignition- — VW

🧭 Before you start

Fits: VW Passat B5 (3B)

🔧 Engine codes this applies to

🔩 Torque settings

Values can differ between engine variants — check the code stamped on your block.

ℹ️ Always cross-check the exact figure against your vehicle's factory manual before final tightening — a wrong torque can damage the engine. These values are extracted from workshop data and may not cover every variant or revision.

📋 Procedure

1. Checking injectors and ignition system
2. Switch off electrical consumers
3. Set steering wheel to centre position
4. Place selector lever in P or N
5. Check air mass meter

6. Adapting engine control unit to throttle valve module
7. Checking throttle valve control module
8. Rectify cause
9. Checking ignition coils with output stage
10. Checking spark plugs and ignition cables with connector
11. Checking injectors (see the separate procedure).
12. Checking knock sensors
13. Loosen knock sensor and tighten to 20 Nm — 20 Nm (15 lb-ft)
14. Secure loose components
15. Change type of fuel
16. Checking knock sensors
17. Checking compression pressure: Rep. Gr. 15; Removing and installing cylinder head; Checking compression pressure
18. Secure loose components

Other VW procedures

• VW VR6 1 Golf4, Bora, Beetle, AAA timing chain replacement
• Checking camshaft timing control/adjustment – VW AYL/AZX
• Renewing crankshaft oil seal, vibration damper end – VW · 3 torque figures
• Checking intake air temperature sender – VW Passat B5 2.3 AZX
• Checking coolant temperature sender – VW Passat B5 2.3 AZX
• Removing engine · 41 torque figures
• Removing and installing camshaft – VW Golf Cabriolet · 47 torque figures
• Adjusting valve timing – VW Passat B5 · 83 torque figures
• Removing and installing camshafts – VW Passat B6 · 39 torque figures
• Removing and installing coolant pump · 53 torque figures