Checking misfiring detection: Audi TT Mk1 1.8 (ARX, ARY, AUM, AUQ, …)

🧭 Before you start

Fits: Audi TT Mk1 (8N)

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• Connect vehicle diagnostic, testing and information systemVAS 5051 A and select vehicle system "“01 - Engine electronics”". The engine must be idling when doing so.

🔧 Engine codes this applies to

📐 43 workshop diagrams for ARX

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

📋 Procedure

1. Connect vehicle diagnostic, testing and information systemVAS 5051 A and select vehicle system "“01 - Engine electronics”". The engine must be idling when doing so.
2. From list (1), select diagnosis function "“08 - Reading measured value block”".
3. Use keypad (2) to enter "“14”" for "“display group 014”" and confirm by touching Q key.
4. Check displays in zones (3) and (4).
5. Terminate function "“08 - Reading measured value block”" by touching ← key.

6. To switch to "“display group 015”", touch ↑ key.
7. Check displays in zones (1 ... 4).
8. To switch to "“display group 016”", touch ↑ key.
9. Check displays in zones (1) and (4).
10. Check spark plugs
11. Check ignition coil with output stage
12. Check injectors

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